21 research outputs found
FIGURE 3 in Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil
No full textFIGURE 3. Geographical distributions of the two new species of Smicridea (Rhyacophylax) described in this study, in the Atlantic forest biome, S"o Paulo and Paraná states, Brazil.Published as part of Santana, Vitória, Desiderio, Gleison Robson & Hamada, Neusa, 2021, Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil, pp. 115-126 in Zootaxa 4941 (1) on page 121, DOI: 10.11646/zootaxa.4941.1.7, http://zenodo.org/record/459481
FIGURE 5A–5F in Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil
No full textFIGURE 5A–5F. Smicridea (Rhyacophylax) dumasi sp. nov., male genitalia. 5A, left lateral. 5B, dorsal. 5C, phallic apparatus, left lateral. 5D, apex of phallic apparatus, dorsal. 5E, apex of phallic apparatus, left lateral. 5F, apex of everted phallic apparatus, left lateral. Scale bar in mm: 5A, 5B = 0.2; 5C, 5D, 5E = 0.01; 5F = 0.05.Published as part of Santana, Vitória, Desiderio, Gleison Robson & Hamada, Neusa, 2021, Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil, pp. 115-126 in Zootaxa 4941 (1) on page 123, DOI: 10.11646/zootaxa.4941.1.7, http://zenodo.org/record/459481
FIGURE 4A–4F in Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil
No full textFIGURE 4A–4F. Smicridea (Rhyacophylax) dumasi sp. nov., male. 4A, habitus, dorsal (in alcohol). 4B, head, right lateral. 4C, head, dorsal. 4D, right forewing, dorsal. 4E, right hind wing, dorsal. 4F, abdominal segments V–VIII, ventral. Scale bars in mm: 4A = 2; 4B, 4C = 0.5; 4D, 4E, 4F = 1.Published as part of Santana, Vitória, Desiderio, Gleison Robson & Hamada, Neusa, 2021, Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil, pp. 115-126 in Zootaxa 4941 (1) on page 122, DOI: 10.11646/zootaxa.4941.1.7, http://zenodo.org/record/459481
Smicridea (Rhyacophylax) boraceia Santana & Desiderio & Hamada 2021, sp. nov.
No full textSmicridea (Rhyacophylax) boraceia sp. nov. Santana, Desiderio & Hamada Figs. 1–3 urn:lsid:zoobank.org:act: 5F866989-8C80-4DCC-86CD-4F982054BA25 Diagnosis. Smicridea (Rhyacophylax) boraceia sp. nov. is most similar to S. (Rhyacophylax) scalprum Vilarino, Dias & Calor 2019 by having tergum X concave at its apex in dorsal view, with lateral margins rounded forming a produced flap, strongly sclerotized, and with the apex of the phallotremal sclerite of the phallic apparatus with subtriangular lateral flap. However, S. (R.) boraceia sp. nov. has six short, stout spines on the ventral region of the apicomesal lobe of tergum X, which are absent in S. (R.) scalprum. In addition, S. (R.) boraceia sp. nov. can be recognized by the two medium-sized, apicolateral spines directed posterad and generally three apicoventral spines directed downward on the phallic apparatus (both absent in S. (R.) scalprum). Additionally, the new species has a pair of subapical, comma-shaped sclerites on the phallotremal sclerite of the phallic apparatus, in dorsal view. Description. Adult male. Length of each forewing 7.95–8.16 mm (mean = 8.05, SD = ±0.27, n = 5). General color dark brown (in alcohol) (Fig. 1A). Antennae pale brown (Figs 1 A–1C). Head dark brown, dorsal region with: brown setae (Fig. 1C); well-pronounced coronal suture; five setal warts, with anteromesal wart small, rounded, anterolateral pair partially divided, weakly delimited, and posterolateral pair large, ovoid (Fig. 1C). Width of one eye, in dorsal view, 1/3 that of interocular distance (Fig. 1C). Maxillary palp with segment 3 about 2X longer than either of segments 1 or 2 and about same length as segment 4, segment 5 about 1.2X as long as all previous segments combined (Fig. 1B). Thorax dark brown, covered with brown setae (Fig. 1A); legs brown, with fore- and mid-leg tarsi yellowish (Fig. 1A). Wing venation typical for subgenus (Figs 1D, 1E). Forewings, in alcohol, dark brown, with three white transverse bands zigzaging over full length, one subapical band arising on costa, running through half length of R2 and ending at Cu1b; mesal band arising on costa, running through base of R2+3 and ending on apex of Cu2, and basal band arising on subcosta and reaching anal vein (Fig. 1D). Sternum V with pair of anterolateral glandular processes 1.2X longer than sternum. Abdominal segments VI and VII without internal glands (Fig. 1F). Male genitalia. Segment IX in lateral view with anterolateral margins sinuous, concave at mid-height, weakly sclerotized (Fig. 2A); posterodorsal margins produced, rounded, bearing small spicules (Figs 2A, B). Tergum X elongate; in lateral view, ventrolateral margins strongly sclerotized, without processes; each with apex ending in rounded lobe, with shallow subapicoventral notch, (Fig. 2A); in dorsal view, lateral margins rounded, each produced as flap; dorsomesal setose area bearing seven to eight pairs of medium-sized, fine setae; apex divided mesally into pair of hemitergites by parallel-sided incision about 1/2 length of tergite (Fig. 2B); apex of each hemitergite concave, with one pair of short, stout apicolateral spines, apicomesal lobe strong, rounded, bearing about six short, stout spines ventrally (Figs 2B, 2C). Inferior appendages each 2-segmented; basal segment as long as tergum X, slightly inflated distally, covered with medium-sized to long, fine setae, with four long, stout spine-like setae subapically, two dorsal and two on internal margin; apical segment about 1/2 as long as basal segment, thick, covered with medium-sized, fine setae, curved mesad, apex slightly pointed (Fig. 2B). Phallic apparatus long and tubular; basal section, in lateral view, enlarged, 3X diameter of phallotheca at its narrowest portion, forming angle of about 63° with apical section; median section of phallotheca strongly curved ventrad, without processes (Fig. 2D); apex, in dorsal view, slightly enlarged, without processes or plates; endothecal membranes, in dorsal view, with two medium-sized, dorsolateral spines, directed posterad (Fig. 2F); in lateral view, with three medium-sized, apicoventral spines directed downward (Fig. 2E) (variation: male paratype INPA-TRI 000100 has only two spines (Fig. 2G); male paratype INPA-TRI 000101 also has two spines, one them minute in size (Fig. 2H)); phallotremal sclerite, in dorsal view, distinct, strongly sclerotized, slightly divided distally into two slender, paired lobes with rounded apices, each lobe bearing one small subtriangular lateral, flap (Fig. 2F), accompanied basally with pair of very dark, subapical, comma-shaped sclerites; in lateral view, slender, slightly upturned apically (Fig. 2D). Ejaculatory duct of endophallus, in lateral view, distinct, sclerotized. Endothecal membranes distinctly reticulated (Fig. 2E), dorsolateral spines upturned when phallic apparatus everted (Fig. 2H). Female and immature stages. Unknown. Material examined. Holotype male. BRAZIL: São Paulo: Salesópolis, Estaç „o Biológica de Boracéia, Casa Grande, 15.xi.1974, C.G. Froehlich leg., (MZUSP 000351). Paratypes: same data as holotype, 15 males (MZUSP); same data, except Rio Claro, represa Casa Grande, 23º38’10.3”S, 45º49’57.1”W, 856 m a.s.l., 5 males, 23.i.2011, L.L. Dumas & D.M. Takiya legs., (INPA-TRI 000100–104); same data, except 10 males (DZRJ); same data, except 4 males (DZUP). Distribution. BRAZIL (Atlantic Forest: S„o Paulo state) ( Fig. 3). Etymology. The specific epithet refers to Estaç„o Biológica de Boracéia where the specimens were collected. The name is a substantive in apposition, with unchanging gender.Published as part of Santana, Vitória, Desiderio, Gleison Robson & Hamada, Neusa, 2021, Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil, pp. 115-126 in Zootaxa 4941 (1) on pages 117-120, DOI: 10.11646/zootaxa.4941.1.7, http://zenodo.org/record/459481
Smicridea (Rhyacophylax) dumasi Santana & Desiderio & Hamada 2021, sp. nov.
No full textSmicridea (Rhyacophylax) dumasi sp. nov. Santana, Desiderio & Hamada Figs 3–5 urn:lsid:zoobank.org:act: F05B195A-0747-43F7-809C-ABE93B82518F Diagnosis. Smicridea (Rhyacophylax) dumasi sp. nov. is similar to S. (Rhyacophylax) fogasa Oláh & Johanson 2012 (Ecuador), S. (Rhyacophylax) kampoka Oláh & Johanson 2012 (Peru), S. (Rhyacophylax) nemorosa Holzenthal & Blahnik 1995 (Costa Rica), and S. (Rhyacophylax) salta Flint 1974 (Mexico) based on the presence of a midlateral process on the ventrolateral margin of tergum X. However, in this region of the tergum, S. (R.) dumasi sp. nov. also has one small pointed, process subapically, which is absent in those species mentioned above. The new species has 11 medium-sized, ventral spines and three lateroventral spines on the middle and apex of the phallic apparatus, respectively, whereas S. (R.) fogasa, S. (R.) kampoka, S. (R.) nemorosa, and S. (R.) salta have processes or lobes in various other forms, number, and positions on the apex of the phallic apparatus.Additionally, S. (R.) dumasi sp. nov. can be recognized by six long, stout spines on the dorsal periphallic cap of the phallic apparatus. Description. Adult male. Length of each forewing 7.56–8.40 mm (mean = 7.92 mm, SD = ±0.22, n = 5). General color pale brown (in alcohol) (Fig. 4A). Antennae pale brown (Fig. 4A). Head pale brown, with pale setae on dorsum (Fig. 4C); dorsally with well-pronounced coronal suture; with five setal warts; anteromesal wart small, rounded; anterolateral pair partially divided, weakly delimited; posterolateral pair large, ovoid (Fig. 4C). Eye width, in dorsal view, 1/2 that of interocular distance (Fig. 4C). Maxillary palp with segment 3 about 2X longer than segments 1 or 2 and about same length as segment 4, segment 5 about 1.2X longer than all previous segments combined (Fig. 4B). Thorax pale brown, covered with brown setae (Fig. 4A); legs pale brown, with tarsi of the fore- and midlegs yellowish (Fig. 4A). Wing venation typical for subgenus (Figs 4D, 4E). Forewings, in alcohol, pale yellow, with large, brown, transverse band subapically arising on R2+3 and reaching apex of Cu1a+b, and brown spots on crossveins and another along bases of C and Sc (Fig. 4D). Sternum V with pair of anterolateral glandular processes slightly shorter than sternum. Abdominal segments VI and VII without internal glands (Fig. 4F). Male genitalia. Segment IX in lateral view with anterolateral margin nearly straight, weakly sclerotized (Fig. 5A); posterodorsal margin strongly produced, rounded, bearing small spicules (Figs 5A, 5B). Tergum X elongate; in lateral view, ventrolateral margin strongly sclerotized; in dorsal view, asymmetrical, with one medium-sized, pointed, midlateral process, curved mesad on insect’s right side, two on left side: larger process with apex bifid and curved mesad, smaller process halfway between larger process and tergum apex; apex of tergum produced and slightly upturned (Fig. 5A); lateral margins slightly sinuous beyond midlateral processes; dorsomesal setose area bearing six to seven medium-sized pairs of fine setae; divided apicomesally by V-shaped incision about 1/2 its length; apices of tergum obliquely truncate, each with about five short, fine setae (Fig. 5B). Inferior appendages each 2-segmented; basal segment long, slightly inflated distally, covered with medium-sized to long, thin setae, with three long, stout apical spine-like setae on internal margin; apical segment about 1/3 as long as basal segment, thick, covered with medium-sized, fine setae, curved mesad, apex rounded (Figs 5A, 5B). Phallic apparatus long and tubular; basal section, in lateral view, enlarged, 3X diameter of phallotheca at its narrowest portion, forming angle of about 83° with apical section; median section of phallotheca slightly curved ventrad with 8 to 11 mediumsized, ventral spines, and with dorsal periphallic cap sclerotized and bearing six long, stout spines (Fig. 5C); apex, in dorsal view, not enlarged (Fig. 5D); in lateral view, with three medium-sized, lateroventral spines, directed posterad (Fig. 5C); endothecal membranes, in dorsal view, without spines; phallotremal sclerite, in dorsal view, distinct, strongly sclerotized, divided into two slender, paired lobes with obliquely truncated apices (Fig. 5D); in lateral view, slender, upturned apically (Fig. 5C). Ejaculatory duct of endophallus, in lateral view, distinct, slightly sclerotized. When endothecal membranes everted, distinctly reticulated, wrapping around phallotremal sclerite, fully extended and shown in Figs 5E, 5F. Female and immature stages. Unknown. Material examined. Holotype male. BRAZIL: São Paulo: Salesópolis, Estaç „o Biológica de Boracéia, Casa Grande, Pedreira, 15.xi.1974; C.G. Froehlich leg., (MZUSP). Paratypes: same data as holotype, 4 males (MZUSP). Paraná: Guarapeçaba, RPPN Salto Morato, Rio Morato, near the dormitory, 25°10’58.3”S, 48°17’57.2”W, 8 m a.s.l., 4 males, 25.i.2011, L.L. Dumas & J.L. Nessimian legs., (DZRJ); same data, except 4 males (INPA-TRI 000105), 4 males (DZUP). Distribution. BRAZIL (Atlantic Forest: Paraná and S„o Paulo states) (Fig. 3). Etymology. This new species is named in honor of Dr. Leandro Lourenço Dumas (Universidade Federal do Rio de Janeiro, UFRJ, Brazil) in recognition of his contributions to the study of Brazilian caddisflies.Published as part of Santana, Vitória, Desiderio, Gleison Robson & Hamada, Neusa, 2021, Two new species of Smicridea (Rhyacophylax) Müller 1879 (Trichoptera Hydropsychidae) from Atlantic Forest, Brazil, pp. 115-126 in Zootaxa 4941 (1) on pages 120-124, DOI: 10.11646/zootaxa.4941.1.7, http://zenodo.org/record/459481
Smicridea (Smicridea) erecta Flint 1974
No full textSmicridea (Smicridea) erecta Flint, 1974 Fig. 16A Smicridea erecta Flint, 1974b: 87 (type locality: Suriname, Nassau Mountains, Km 11.3, creek; RNH; ♂). Smicridea erecta – Oláh & Johanson 2012: 252 (distribution). — Holzenthal & Calor 2017: 169 (catalog). — Alves et al. 2018: 394 (distribution). Material examined BRAZIL • 3 ♂♂; Roraima, Amajarí, Serra do Tepequém, Igarapé afluente do Silêncio; 03°45′29.3″ N, 61°45′29.3″ W; 532 m a.s.l.; 11 Jul. 2016; A.M.O. Pes, G. Amora, G.P. Dantas and J.O. Silva leg.; Malaise trap; INPA • 2 ♂♂; Amajarí, Serra do Tepequém, Igarapé Geladeira; 03°47′00.8″ N, 61°44′51.8″ W; 549 m a.s.l.; 8–11 Jul. 2016; A.M.O. Pes, G. Amora, G.P. Dantas and J.O. Silva leg.; Malaise trap; INPA • 4 ♂♂; Amajarí, Serra do Tepequém, Igarapé Promessa; 03°46′10.6″ N, 61°45′27.0″ W; 535 m a.s.l.; 11 Jul. 2016; A.M.O. Pes, G. Amora, G.P. Dantas and J.O. Silva leg.; Malaise trap; INPA. Distribution (Fig. 16A) Brazil: Amazon (Amazonas [Alves et al. 2018], Roraima [new record]), French Guiana, Suriname.Published as part of Desiderio, Gleison Robson, Pes, Ana Maria, Andrade-Souza, Vanderly & Hamada, Neusa, 2021, The Smicridea (Smicridea) fasciatella species group (Trichoptera: Hydropsychidae) in Brazil: six new species and new distributional records, pp. 156-196 in European Journal of Taxonomy 750 (1) on pages 184-186, DOI: 10.5852/ejt.2021.750.1371, http://zenodo.org/record/545171
Smicridea (Smicridea) blahniki Desiderio, Pes & Hamada 2021, sp. nov.
No full textSmicridea (Smicridea) blahniki Desiderio, Pes & Hamada sp. nov. urn:lsid:zoobank.org:act: FD50773D-473C-4AC6-979F-D3F9E3B410E0 Figs 1–3, 4A Diagnosis Smicridea blahniki sp. nov. is similar to S. erecta and S. jeaneae Desiderio, Pes & Hamada sp. nov. based on the strong, pointed apicomesal lobes on tergum X. Of these species, the new species is most similar to S. erecta, because the apicomesal lobes in both species touch distally and each lobe bears one pair of short, thin apical setae in dorsal view, while in S. jeaneae sp. nov., the apicomesal lobes do not touch distally and each has three medium-sized, thin apical setae. Smicridea blahniki sp. nov. has one pair of long, stout subapical setae on the apicomesal lobe of tergum X, whereas S. erecta has one pair of mediumsized, thin setae (absent in S. jeaneae sp. nov.). The basal segment of the inferior appendage in the new species has five stout apical spine-like setae, one long seta on the dorsal surface and four medium-sized on the mesal margin, whereas S. erecta and S. jeaneae sp. nov. have three stout apical spine-like setae (one dorsal and two on the internal margin). Additionally, the apical segment of the inferior appendage in S. blahniki sp. nov. is thick, slightly curved medially, and has a rounded apex, while in S. erecta and S. jeaneae sp. nov., this segment is slender, strongly curved medially, and has a slightly acute apex. Furthermore, S. blahniki sp. nov. can be recognized by the stethoscope-shaped phallotremal sclerite of the phallic apparatus in dorsal view, while in S. erecta this sclerite is ribbon-shaped and in S. jeaneae sp. nov. it is U-shaped in the proximal region and hastate in the distal region. Etymology The specific epithet is in honor of Dr Roger J. Blahnik (University of Minnesota, USA) in recognition of his contributions to the taxonomy and systematics of Neotropical caddisflies. Material examined Holotype BRAZIL • ♂; Amazonas, Barcelos, Parque Estadual Serra do Aracá, 1 st order stream; 00°54′13.68″ N, 63°26′01.18″ W; 1112 m a.s.l.; 2 Aug. 2009; A.M.P. Santos, N. Ferreira Jr and F.F. Salles leg.; Malaise trap; INPA-TRI 000106. Paratype BRAZIL • 1 ♂; same collection data as for holotype; INPA-TRI 000107. Description Adult male (Figs 1–2) FOREWING LENGTH. 4.15, 4.67 mm (n = 2). COLOR. General color brown (in alcohol) (Fig. 1A). Antennae yellowish brown (Fig. 1A). Head brown, denuded (Fig. 1B–C); dorsally with weakly-pronounced median suture; with five setal warts; anteromesal wart small, rounded; anterolateral pair undivided, weakly delimited; posterolateral pair large, ovoid (Fig. 1C). Maxillary palp with segments 1–4 increasing gradually about 0.8× in size toward more apical segments, segment 5 long, about 1.2× as long as all previous segments combined (Fig. 1B). Thorax pale brown, without setae (old specimens); legs brown, with mid leg tarsi yellowish (Fig. 1A). Wing venation typical for subgenus (Fig. 1D–E). Forewings, in alcohol, uniformly brown, with small white spot on apex of Cu2 (Fig. 1D). Sternum V with anterolateral glandular processes as long as sternum.Abdominal segments VI and VII with 2 pairs of internal glands, both pairs longer than their containing segments (Fig. 1F). MALE GENITALIA (Fig. 2). Segment IX in lateral view with anterolateral margin nearly straight, strongly sclerotized (Fig. 2A); posterodorsal margin bearing small spicules, distributed in a subtriangular band (Fig. 2B). Tergum X elongate; in lateral view, ventrolateral margin strongly sclerotized, with four mediumsized, thin setae on apical third; apex with sharp notch, ending in slender, straight lobe (Fig. 2A); in dorsal view, lateral margin rounded; dorsomesal setose area bearing three medium-sized, thin setae; divided apicomesally by V-shaped incision about ¼ its length; apex of tergite rounded, with strong, pointed apicomesal lobe, touching distally, each bearing one pair of long, stout subapical setae and one pair of short, thin apical setae (Fig. 2B). Inferior appendages 2-segmented; basal segment long, slightly inflated distally, covered with long, thin setae, with a group of stout apical spine-like setae, one long seta dorsally and four medium-sized setae on mesal margin; apical segment short, about ⅓ as long as basal segment, thick, slightly curved medially, apex rounded with numerous short, thin setae on mesal margin (Fig. 2B). Phallic apparatus long and tubular; basal section, in lateral view, enlarged, 4× diameter of phallotheca at its narrowest point, forming an angle of about 93° with apical section; median section of phallotheca straight, with dorsal periphalic cap sclerotized, slender, and upturned (Fig. 2C); apex enlarged, without processes or plates; endothecal membranes without spines; phallotremal sclerite, in dorsal view, distinct, strongly sclerotized, stethoscope-shaped, proximal region slightly bifid and distal region with acute arms (Fig. 2D–E); in lateral view, slender, with dark brown comma-like median depression, distally arched, directed posterad (Fig. 2C). Ejaculatory duct of endophallus, in lateral view, distinct, sclerotized (Fig. 2C). Bionomics The males of S. blahniki sp. nov. were collected near a 1 st order stream, where the predominant vegetation is highland savanna with a minimum altitude of 1112 m a.s.l. (Fig 4A). This stream is located in the Serra do Aracá mountain range, northern Brazilian Amazon. The water in the stream was black and acidic (pH 4.6), with low conductivity (10 μScm-1), and a water temperature of 22°C. The stream was about 0.5 m wide, 0.30 m deep, with rocky bottoms characterized by boulders and slow-flowing water. Distribution (Fig. 3) Brazil: Amazon (Amazonas).Published as part of Desiderio, Gleison Robson, Pes, Ana Maria, Andrade-Souza, Vanderly & Hamada, Neusa, 2021, The Smicridea (Smicridea) fasciatella species group (Trichoptera: Hydropsychidae) in Brazil: six new species and new distributional records, pp. 156-196 in European Journal of Taxonomy 750 (1) on pages 159-164, DOI: 10.5852/ejt.2021.750.1371, http://zenodo.org/record/545171
Smicridea (Smicridea) jeaneae Desiderio, Pes & Hamada 2021, sp. nov.
No full textSmicridea (Smicridea) jeaneae Desiderio, Pes & Hamada sp. nov. urn:lsid:zoobank.org:act: B3B2E393-F3E0-4FAD-8838-32481EB11877 Figs 3, 11 – 12 Diagnosis Smicridea jeaneae sp. nov. also belongs to the albosignata complex.Among the species in this complex, it is most similar to S. bulbosa Flint, 1974 from Suriname based on the strong, parallel, pointed apicomesal lobes on tergum X and the short, slender apical segment of the inferior appendage with slightly acute apex. In both species the claw-shaped internal dorsolateral plates of the phallic apparatus are as long as the basal width, but in S. jeaneae sp. nov. the plates are straight mesally, while in S. bulbosa they are curved. In addition, the phallotremal sclerite of the phallic apparatus has a hastate shape distally in dorsal view and is kidney-shaped in lateral view in the new species, but is strap-like in dorsal view and rod-like in lateral view in S. bulbosa. Smicridea jeaneae sp. nov. can also be recognized by the three stout apical spine-like setae on the basal segment of the inferior appendage, one long seta dorsally and two mediumsized setae on the mesal margin. Etymology This new species is named in honor of Dr Jeane Marcelle Cavalcante do Nascimento (Instituto Nacional de Pesquisas da Amazônia, INPA – Brazil) for her valuable friendship, cooperation in the field and the laboratory, and in gratitude for her help in collecting material during the doctoral studies of the first author. Material examined Holotype BRAZIL • ♂; Amapá, Oiapoque, Oiapoque River, Buraco do Cristal; 03º48′16″ N, 51º51′25″ W; 7 Dec. 2018; M. Silva leg.; INPA-TRI 000116. Description Adult male (Figs 11–12) FOREWING LENGTH. 6.37 mm (n = 1). COLOR. General color dark brown (in alcohol) (Fig. 11A). Antennae yellowish brown (Fig. 11A). Head brown, with grayish to brown setae (Fig. 11B–C); dorsally with weakly pronounced median suture; with five setal warts; anteromesal wart small, rounded; anterolateral pair undivided, weakly delimited; posterolateral pair large, ovoid (Fig. 11C). Maxillary palp with segments 1–4 increasing gradually, about 0.8× in size toward the more apical segments, segment 5 long, about 1.2× as long as all previous segments combined (Fig. 11B). Thorax dark brown, covered with pale-brown setae; legs brown, with mid-leg tarsi yellowish (Fig. 11A). Wing venation typical for subgenus (Fig. 11D–E). Forewings, in alcohol, brown, with white transverse band subapically reaching base of R2+3, another arising on M1+2 and reaching base of Cu1a+b, and small white spot on apex of Cu2 (Fig. 11D). Sternum V with anterolateral glandular processes slightly shorter than sternum. Abdominal segments VI and VII with 2 pairs of internal glands, both pairs longer than their containing segments (Fig. 11F). MALE GENITALIA (Fig. 12). Segment IX in lateral view with anterolateral margin nearly straight, strongly sclerotized (Fig. 12A); posterodorsal margin bearing small spicules, distributed in two subtriangular bands (Fig. 12B). Tergum X elongate; in lateral view, ventrolateral margin strongly sclerotized, with three medium-sized, thin setae on apical third; apex with shallow notch, ending in a slender, straight lobe (Fig. 12A); in dorsal view, lateral margin slightly rounded; dorsomesal setose area bearing four mediumsized, thin setae; divided apicomesally by V-shaped incision about ½ its length; apex of tergite rounded, with strong, pointed apicomesal lobe, each bearing three medium-sized, thin apical setae (Fig. 12B). Inferior appendages 2-segmented; basal segment long, slightly inflated distally, covered with long, thin setae, with group of stout apical spine-like setae (one very long dorsal seta and two long setae on mesal margin); apical segment short, about ⅓ as long as basal segment, slender, strongly curved medially, apex slightly acute with numerous short, thin setae on mesal margin (Fig. 12B). Phallic apparatus long and tubular; basal section, in lateral view, enlarged, 4× diameter of phallotheca at its narrowest point, forming an angle of about 103° with apical section; median section of phallotheca straight, without processes (Fig. 12C); apex enlarged, with pair of claw-shaped internal dorsolateral plates, as long as basal width, straight mesally and directed posterad; endothecal membranes without spines; phallotremal sclerite, in dorsal view, distinct, strongly sclerotized, with U-shaped proximal region and hastate distal region (Fig. 12D–E); in lateral view, dorsal region kidney-shaped, ventrally slender and sinuous (Fig. 12C). Ejaculatory duct of endophallus, in lateral view, distinct, slightly sclerotized (Fig. 12C). Bionomics The only male specimen of S. jeaneae sp. nov. was collected near the Oiapoque River, at a place known as “Buraco do Cristal”; this river is about 400 m in width. The prevalent vegetation is Dense Ombrophilous Lowland Forest. The collection site is located in the northern-most part of the Brazilian Amazon. Distribution (Fig. 3) Brazil: Amazon (Amapá).Published as part of Desiderio, Gleison Robson, Pes, Ana Maria, Andrade-Souza, Vanderly & Hamada, Neusa, 2021, The Smicridea (Smicridea) fasciatella species group (Trichoptera: Hydropsychidae) in Brazil: six new species and new distributional records, pp. 156-196 in European Journal of Taxonomy 750 (1) on pages 175-178, DOI: 10.5852/ejt.2021.750.1371, http://zenodo.org/record/545171
Smicridea (Smicridea) caaguara Desiderio, Pes & Hamada 2021, sp. nov.
No full textSmicridea (Smicridea) caaguara Desiderio, Pes & Hamada sp. nov. urn:lsid:zoobank.org:act: 6BC132ED-63EA-4E0C-A18F-7D2A367B0C0E Figs 3, 4C – D, 7 – 8 Diagnosis This new species is another member of the albosignata complex; it is most similar to the nominal species S. albosignata based on the enlarged, slightly bifid apex of the apical segment of the inferior appendage. However, the lateral margin of tergum X in the new species is rounded in dorsal view, while in S. albosignata this structure is straight. Both species also differ in the shape of the tergum X apex: in S. albosignata it is acute in dorsal view, while in S. caaguara sp. nov. it is rounded. Additionally, S. albosignata has the apex of tergum X with a subtriangular apicomesal flap directed laterad in dorsal view, while in S. caaguara sp. nov. this flap is absent. The new species also can be recognized by the distinct and complex phallotremal sclerite in dorsal view. Etymology The specific epithet is a reference to the indigenous people known as caaguaras, first inhabitants of the São Francisco de Paula municipality, which is the type locality of this species. This name is used as a noun in apposition. Material examined Holotype BRAZIL • ♂; Rio Grande do Sul, São Francisco de Paula, Floresta Nacional São Francisco de Paula, Arroio Lajeado; 29°25′57.01″ S, 50°22′22.5″ W; 832 m a.s.l.; 30 Aug.–2 Sep. 2015; N. Hamada, C.J. Benetti, G.P. Dantas and A.M.O. Pes leg.; INPA-TRI 000110. Paratype BRAZIL • 1 ♂; Rio Grande do Sul, Agudo, Cascata Raddatz, Arroio Teotônia; 29°35′12.05″ S, 53°10′49.8″ W; 248 m a.s.l.; 25 Aug. 2015; N. Hamada, C.J. Benetti, G.P. Dantas and A.M.O. Pes leg.; INPA-TRI 000111. Description Adult male (Figs 7–8) FOREWING LENGTH. 4.70, 5.92 mm (n = 2). COLOR. General color dark brown (in alcohol) (Fig. 7A). Antennae brown (Fig. 7A). Head dark brown, with brown setae on dorsum (Fig. 7B–C); dorsally with weakly pronounced median suture; with five setal warts; anteromesal wart small, rounded; anterolateral pair undivided, weakly delimited; posterolateral pair large, ovoid (Fig. 7C). Maxillary palp with segments 1–4 increasing gradually about 0.8× in size toward more apical segments, segment 5 long, about 1.2× as long as all previous segments combined (Fig. 7B). Thorax dark brown, covered with brown setae; legs brown, with mid-leg tarsi yellowish (Fig. 7A). Wing venation typical for subgenus (Fig. 7D–E). Forewings, in alcohol, grayish to dark brown, with white transverse band subapically on pterostigma reaching base of R4+5 and small white spot on apex of Cu2 (Fig. 7D). Sternum V with anterolateral glandular processes slightly longer than sternum. Abdominal segments VI and VII with 2 pairs of internal glands, both pairs longer than their segments (Fig. 7F). MALE GENITALIA (Fig. 8). Segment IX in lateral view with anterolateral margin nearly straight, weakly sclerotized (Fig. 8A); posterodorsal margin bearing small spicules, distributed in two dark, narrow parallel bands (Fig. 8B). Tergum X elongate; in lateral view, ventrolateral margin strongly sclerotized, with eight to 10 medium-sized, thin setae on apical third; apex produced and upturned (Fig. 8A); in dorsal view, lateral margin rounded; dorsomesal setose area bearing six to eight medium-sized, thin setae; divided apicomesally by V-shaped incision about ⅓ its length; apex of tergite rounded, with about three short, thin setae (Fig. 8B). Inferior appendages 2-segmented; basal segment long, slightly inflated distally, covered with long, thin setae, with pair of long, stout apical spine-like setae on mesal margin; apical segment short, about ½ as long as basal segment, thick, curved medially, apex enlarged and slightly bifid with numerous short, acuminate setae on mesal margin (Fig. 8B). Phallic apparatus long and tubular; basal section, in lateral view, enlarged, 3× diameter of phallotheca at its narrowest point, forming an angle of about 105° with apical section; median section of phallotheca straight, with dorsal periphalic cap sclerotized and flattened (Fig. 8C); apex enlarged, with pair of claw-shaped internal dorsolateral plates, longer than basal width, curved mesally and directed posterad; endothecal membranes without spines; phallotremal sclerite, in dorsal view, distinct, strongly sclerotized, proximal region slender, rod-like, divided distally in two subtriangular lateral flaps (Fig. 8D–E); in lateral view, proximal region with small middorsal lobe, distally directed downward (Fig. 8C). Ejaculatory duct of endophallus, in lateral view, distinct, slightly sclerotized (Fig. 8C). Bionomics The males of S. caaguara sp. nov. were collected near medium-sized streams, about 5.0 m wide, located in the Pampa-Atlantic Forest transition zone in the state of Rio Grande do Sul. The vegetation of the collections sites varies from Grassy–Woody Steppe (Arroio Lageado – Rio dos Sinos Basin, Fig 4C) to Seasonal Deciduous Forest (Arroio Teotônia – Rio Jacuí Basin, Fig 4D). The streams have bedrock and fast-flowing water, with cloudy and alkaline water (pH 7.9), conductivity 25–50.4 μScm-1, and water temperatures of 15–16.4°C. Distribution (Fig. 3) Brazil: Atlantic Forest (Rio Grande do Sul).Published as part of Desiderio, Gleison Robson, Pes, Ana Maria, Andrade-Souza, Vanderly & Hamada, Neusa, 2021, The Smicridea (Smicridea) fasciatella species group (Trichoptera: Hydropsychidae) in Brazil: six new species and new distributional records, pp. 156-196 in European Journal of Taxonomy 750 (1) on pages 168-171, DOI: 10.5852/ejt.2021.750.1371, http://zenodo.org/record/545171
Smicridea (Smicridea) brevitruncata Desiderio, Pes & Hamada 2021, sp. nov.
No full textSmicridea (Smicridea) brevitruncata Desiderio, Pes & Hamada sp. nov. urn:lsid:zoobank.org:act: 47DD9364-4029-4B7C-A3EC-08B52BC03778 Figs 3, 4B, 5 – 6 Diagnosis Smicridea brevitruncata sp. nov. belongs to the albosignata complex of Flint (1981). It is most similar to S. riita Flint, 1981 from Venezuela based on the obliquely truncated apex of tergite X in dorsal view. However, in S. brevitruncata sp. nov. the apical segment of the inferior appendage is thick and short, and the truncated apex has numerous medium-sized, acuminate setae on the mesal margin, whereas in S. riita it is long, slender, with an acute apex, bearing numerous short, thin setae. Furthermore, the new species can be diagnosed by the basal segment of the inferior appendage having four long, stout apical spine-like setae, two dorsal and two on the mesal margin, and by the shape of the phallotremal sclerite, mainly in dorsal view. Additionally, S. brevitruncata sp. nov. differs from all other species of S. (Smicridea) by the absence of the internal reticulate sacs on abdominal segments VI and VII. Etymology The specific epithet is an allusion to the characteristics of the inferior appendages, which are short and apically truncated. Derived from the Latin words, ʻ brevi ʼ = ʻshortʼ and ʻ truncata ʼ = ʻpiece cut off, tip, endʼ. Material examined Holotype BRAZIL • ♂; Santa Catarina, Ponte Serrada, BR–282, Rio Irani, Parque dos Butieiros; 26º55′49.2″ S, 51º52′29.3″ W; 1022 m a.s.l.; 5 Sep. 2009; N. Hamada, A.M.O. Pes and J.O. Silva leg.; white sheet with an LED light; INPA-TRI 000108. Paratypes BRAZIL • 8 ♂♂; same collection data as for holotype; INPA-TRI 000109 • 2 ♂♂; same collection data as for holotype; DZUP • 2 ♂♂; same collection data as for holotype; DZRJ • 2 ♂♂; same collection data as for holotype; MZUSP. Description Adult male (Figs 5–6) FOREWING LENGTH. 4.52–5.49 mm (mean = 4.75 mm, SD = 0.37, n = 5). COLOR. General color dark brown (in alcohol) (Fig. 5A). Antennae brown (Fig. 5A). Head dark, with grayish to black setae on dorsum (Fig. 5B–C); dorsally with slightly pronounced median suture; with five setal warts; anteromesal wart small, rounded; anterolateral pair undivided, weakly delimited; posterolateral pair large, ovoid (Fig. 5C). Maxillary palp with segments 1–4 increasing gradually about 0.8× in size toward more apical segments, segment 5 long, about 1.2× as long as all previous segments combined (Fig. 5B). Thorax dark brown, covered with brown setae; legs brown, with mid-leg tarsi yellowish (Fig. 5A). Wing venation typical for subgenus (Fig. 5D–E). Forewings, in alcohol, uniformly fuscous, faintly marked with transverse band subapically on pterostigma reaching base of R4+5 and small spot on apex of Cu2 (Fig. 5D). Sternum V with anterolateral glandular processes slightly shorter than sternum. Abdominal segments VI and VII without pairs of internal reticulate sacs (Fig. 5F). MALE GENITALIA (Fig. 6). Segment IX in lateral view with anterolateral margin straight, strongly sclerotized (Fig. 6A); posterodorsal margin bearing small spicules, distributed in two subtriangular bands (Fig. 6B). Tergum X elongate; in lateral view, ventrolateral margin strongly sclerotized, with 10 to 12 short, stout setae on apical third; apex produced and upturned (Fig. 6A); in dorsal view, lateral margin slightly rounded; dorsomesal setose area bearing 10 medium-sized, thin setae; divided apicomesally by V-shaped incision about ⅓ its length; apex of tergite obliquely truncated, with about three short, thin setae (Fig. 6B). Inferior appendages 2-segmented; basal segment long, slightly inflated distally, covered with long, thin setae, with four long, stout apical spine-like setae, two dorsal and two on mesal margin; apical segment short, about ¼ as long as basal segment, thick, slightly curved medially, apex truncated with numerous medium-sized, acuminate setae on mesal margin (Fig. 6B). Phallic apparatus long and tubular; basal section, in lateral view, enlarged, 4× diameter of phallotheca at its narrowest point, forming an angle of about 113° with apical section; median section of phallotheca straight, without processes (Fig. 6C); apex enlarged, with pair of claw-shaped internal dorsolateral plates, longer than basal width, curved mesally and directed posterad; endothecal membranes without spines; phallotremal sclerite, in dorsal view, distinct, strongly sclerotized, proximal region with bifid base and pointed apex, distally with pair of subtriangular, toothlike structures, which are overlapped by pair of slender, curved mesad processes (Fig. 6D–E); in lateral view, proximal region with small middorsal lobe, distally directed downward (Fig. 6C). Ejaculatory duct of endophallus, in lateral view, distinct, slightly sclerotized (Fig. 6C). Bionomics This species was collected near a large fast-flowing river about 20 m wide, located at 1022 m a.s.l. in the southern part of the Brazilian Atlantic Forest (Fig 4B). In this region the predominant vegetation is Mixed Ombrophilous Forest composed mainly of Araucaria angustifolia (Bertol.) Kuntze (Araucariaceae), with intense agricultural and pasture activities. Distribution (Fig. 3) Brazil: Atlantic Forest (Santa Catarina).Published as part of Desiderio, Gleison Robson, Pes, Ana Maria, Andrade-Souza, Vanderly & Hamada, Neusa, 2021, The Smicridea (Smicridea) fasciatella species group (Trichoptera: Hydropsychidae) in Brazil: six new species and new distributional records, pp. 156-196 in European Journal of Taxonomy 750 (1) on pages 164-168, DOI: 10.5852/ejt.2021.750.1371, http://zenodo.org/record/545171
