1,721,001 research outputs found
Mosquitoes (Diptera: Culicidae) originally described from French Guiana
No full textTalaga, Stanislas, Gantier, Jean-Charles, Girod, Romain (2020): Mosquitoes (Diptera: Culicidae) originally described from French Guiana. Zootaxa 4747 (2): 361-377, DOI: 10.11646/zootaxa.4747.2.
FIGURE 4 in Three new species of Culex (Melanoconion) (Diptera: Culicidae) from French Guiana based on morphological and molecular data
No full textFIGURE 4. Male genitalia of Culex (Melanoconion) lucackermanni n. sp. A, Gonocoxopodite, lateral aspect; B, gonocoxopodite, mesal aspect; C, paraproct, tergum X and basal plate, lateral views; D, paramere, lateral view; E, lateral plate and aedeagal sclerite, lateral views; F, tergum IX; G, tergum VIII. AeS, aedeagal sclerite; BP, basal plate; dSL, distal division of subapical lobe; Gc, gonocoxite; GC, gonostylar claw; Gs, gonostylus; LP, lateral plate; lsp, lateral setal patch; Ppr, paraproct; pSL, proximal division of subapical lobe; X-Te, tergum X.Published as part of Talaga, Stanislas & Gendrin, Mathilde, 2022, Three new species of Culex (Melanoconion) (Diptera: Culicidae) from French Guiana based on morphological and molecular data, pp. 177-189 in Zootaxa 5205 (2) on page 184, DOI: 10.11646/zootaxa.5205.2.5, http://zenodo.org/record/730585
FIGURE 3 in Three new species of Culex (Melanoconion) (Diptera: Culicidae) from French Guiana based on morphological and molecular data
No full textFIGURE 3. Male genitalia of Culex (Melanoconion) hutchingsae n. sp. A, Gonocoxopodite, lateral aspect; B, gonocoxopodite, mesal aspect; C, paraproct, tergum X and basal plate, lateral views; D, paramere, lateral view; E, lateral plate and aedeagal sclerite, lateral views; F, tergum IX; G, tergum VIII. AeS, aedeagal sclerite; BP, basal plate; dSL, distal division of subapical lobe; Gc, gonocoxite; GC, gonostylar claw; Gs, gonostylus; LP, lateral plate; lsp, lateral setal patch; Ppr, paraproct; pSL, proximal division of subapical lobe; X-Te, tergum X.Published as part of Talaga, Stanislas & Gendrin, Mathilde, 2022, Three new species of Culex (Melanoconion) (Diptera: Culicidae) from French Guiana based on morphological and molecular data, pp. 177-189 in Zootaxa 5205 (2) on page 182, DOI: 10.11646/zootaxa.5205.2.5, http://zenodo.org/record/730585
Culex guyanensis Clastrier 1970
No full text. Holotype M: Forêt de Cabassou, [Island of] Cayenne, French Guiana (MNHP *); coll. J. Clastrier; 24 May 1968; no. 3425-12. Despite all of our efforts, only the pinned holotype male of Cx. guyanensis (loaned by J. Clastrier to Berlin & Belkin (1980: 17) for their revision of the subgenera Aedinus, Tinolestes and Anoedioporpa of Culex) was found in the MNHP during this study. We consider that the microscope slide bearing the genitalia of the holotype is probably misplaced in the MNHP.Published as part of Talaga, Stanislas, Gantier, Jean-Charles & Girod, Romain, 2020, Mosquitoes (Diptera: Culicidae) originally described from French Guiana, pp. 361-377 in Zootaxa 4747 (2) on page 369, DOI: 10.11646/zootaxa.4747.2.8, http://zenodo.org/record/375602
Culex rabanicolus Floch & Abonnenc 1946
No full textHolotype M: [Chemin de] Raban, [Island of Cayenne], French Guiana (IPP *); coll. E. Abonnenc; 5 Aug. 1943; no. 696. The spelling of the name of this species was unjustifiably changed to rabanicola by Knight & Stone (1977: 264) (see discussion in Harbach 2018). Two specimens listed in the original publication were wrongly designated as paratypes by Dégallier & Claustre (1980: 143). The holotype of Cx. rabanicolus, originally deposited in the IPG, was found in the IPP by Harrison (1973: 278).Published as part of Talaga, Stanislas, Gantier, Jean-Charles & Girod, Romain, 2020, Mosquitoes (Diptera: Culicidae) originally described from French Guiana, pp. 361-377 in Zootaxa 4747 (2) on page 368, DOI: 10.11646/zootaxa.4747.2.8, http://zenodo.org/record/375602
NASCIMENTO PEREIRA, STANISLAS TALAGA, ANTHONY ÉRICO GUIMARÃES, RICARDO LOURENÇO-DE-OLIVEIRA & MONIQUE DE ALBUQUERQUE MOTTA (2019) Taxonomic history of species without subgeneric placement in the genus Wyeomyia Theobald (Diptera: Culicidae) and recognition of Wy. compta Senevet & Abonnenc as a junior synonym of Wy. argenteorostris (Bonne- Wepster & Bonne). Zootaxa, 4656: 359-366.
No full textPereira, Nascimento, Talaga, Stanislas, Guimarães, Anthony Érico, Lourenço-De-Oliveira, Ricardo, Motta, Monique De Albuquerque (2019): NASCIMENTO PEREIRA, STANISLAS TALAGA, ANTHONY ÉRICO GUIMARÃES, RICARDO LOURENÇO-DE-OLIVEIRA & MONIQUE DE ALBUQUERQUE MOTTA (2019) Taxonomic history of species without subgeneric placement in the genus Wyeomyia Theobald (Diptera: Culicidae) and recognition of Wy. compta Senevet & Abonnenc as a junior synonym of Wy. argenteorostris (Bonne- Wepster & Bonne). Zootaxa, 4656: 359-366. Zootaxa 4686 (4): 600-600, DOI: https://doi.org/10.11646/zootaxa.4686.4.
Culex (Melanoconion) sallumae Talaga & Gendrin 2022, n. sp.
No full textCulex (Melanoconion) sallumae Talaga, n. sp. Zoobank LSID: urn:lsid:zoobank.org:act: C727E9C3-C13F-40A1-9BF4-279DA8F104D3 BIN: BOLD:AER7739. Male. Habitus not examined. Genitalia (Fig. 2A‒G): Tergum VIII with a shallow emargination separating the lateral lobes. Tergum IX lobes small, somewhat triangular in outline, rounded apically, widely separated, bearing 18‒21 setae arranged in 2 irregular rows. Gonocoxite obovoid; ventrolateral setae strongly developed; ventromesal surface with small setae scattered from base to level of subapical lobe, setae stronger basally; lateral surface with a well-developed patch of long setae (lsp) at level of subapical lobe; proximal part of ventrolateral surface without scales. Subapical lobe clearly divided into 2 divisions. Proximal division short, columnar, bearing 2 robust, sinuous, apically hooked setae (setae a and b); seta a slightly shorter and thinner than seta b and inserted slightly basal to seta b; a tight group of 5 enlarged and abruptly pointed setae inserted lateral to proximal division. Distal division long, columnar, with 7 apical setae, 1 long hooked seta (h), 1 short saber-like seta (s) arising close to seta h, 1 relatively long saber-like seta (s), 1 broad, petiolate, striate foliform seta (l), 3 narrow, appressed flattened setae (f) arising from distal side. Gonostylus slender, curved, wider at base, tapering to apex, with a patch of short spicules on dorsal surface extending from basal 0.33 to apical snout, subapical crest weakly distinct before apical snout on ventral side, apical snout forming a small, upturned ridge; gonostylar claw short, leaf-like; 2 small setae near dorsal side before gonostylar claw. Phallosome with lateral plates and aedeagal sclerites equivalent in length; aedeagal sclerite broad, curved in lateral view and broadly connected to base of lateral plate; distal part of lateral plate without median process, sternal and tergal processes present; apical sternal process long and hooked at apex; apical tergal process very long, nearly pointed, directed dorsolaterally; apical margin markedly concave; base of lateral plate with a markedly distinct tergal process. Aedeagal sclerite not connected by dorsal aedeagal bridge. Proctiger elongate; paraproct narrowed distally, expanded basally, crown a row of about 5 or 6 simple blades. Cercal sclerite long and narrow with 1 or 2 cercal setae. Basal plate and paramere as figured. Tergum X shape as shown in Fig. 2C. Etymology. This species is dedicated to Professor Maria Anice Mureb Sallum for her incommensurable work on mosquito taxonomy in South America, and particularly on the Spissipes Section of Culex (Melanoconion) (e.g. Forattini & Sallum 1985; Forattini & Sallum 1995; Sallum & Forattini 1996; Sallum et al. 1997). Bionomics. Nothing is known about the bionomics of Cx. sallumae. Adult males were collected using CDC and CDC UV-light traps placed at 1 m above ground and operated from 1800 to 0600 h along an oxbow section of a rainforest stream in deep shade. Distribution. Culex sallumae is only known from the type locality (Fig. 1A). Type material. Holotype: Adult male in 96% ethanol with dissected genitalia mounted on a microscope slide (specimen numbers ST1#01700, BOLD: FGMOS2885-22), FRENCH GUIANA: Montagnes de la Trinité, Crique Aya (53.41378° W, 4.60310° N, 115 m above sea level), 3-XI-2020, S. Talaga, IPG. Paratypes: Two adult males in alcohol with dissected genitalia mounted on separate microscope slides (specimen numbers ST1#01702, BOLD: FGMOS2887-22 and ST1#01704, BOLD: FGMOS2889-22), same collection data as the holotype, IPG.Published as part of Talaga, Stanislas & Gendrin, Mathilde, 2022, Three new species of Culex (Melanoconion) (Diptera: Culicidae) from French Guiana based on morphological and molecular data, pp. 177-189 in Zootaxa 5205 (2) on pages 179-181, DOI: 10.11646/zootaxa.5205.2.5, http://zenodo.org/record/730585
Culex (Melanoconion) hutchingsae Talaga & Gendrin 2022, n. sp.
No full textCulex (Melanoconion) hutchingsae Talaga, n. sp. Zoobank LSID: urn:lsid:zoobank.org:act: 359A3B9D-819C-4BA0-86C7-AC3E46513ECC BIN: BOLD:AEE6759. Culex (Melanoconion) coppenamensis Form 2 (in part) of Sallum & Hutchings (2003) (illustration of gonostylus, species distribution). Male. Habitus not examined. Genitalia (Fig. 3A‒G): Tergum VIII with a shallow V-shaped emargination separating the 2 lateral lobes, with longer setae forming a lateral concentrated setal group. Tergum IX with 2 distinct lobes, shape as shown in Fig. 3F, bearing 33‒35 setae, outer basal setae clearly longer than the others. Gonocoxite globose, outer margin convex, inner margin nearly straight; ventrolateral setae strongly developed; ventromesal surface with small, scattered setae from base to level of distal division of subapical lobe; lateral surface with a well-developed patch of long setae (lsp) at level of subapical lobe, setae longer ventrally; proximal part of ventrolateral surface with numerous scales. Subapical lobe clearly divided into 2 divisions. Proximal division moderately long, columnar, not clearly divided into 2 arms, proximal arm conspicuously shorter than distal arm, each arm bearing 1 long, robust, sinuous, apically hooked seta (setae a and b), both setae equivalent in length and width; a patch of short setae inserted mesally at base of distal surface. Distal division subdivided into inner and outer arms; inner arm with 2 apical setae, 1 long hooked seta (h) and 1 shorter, narrow, saber-like seta (s) inserted in a small tubercle at base of seta h, both h and s arise from separate tubercles at proximal side, 3 or 4 subapical setae, 1 long, wide, apically curved saberlike seta (s) and 3 indistinct, narrow, appressed flattened setae (f) inserted in small tubercles at base of seta s; outer arm long, nearly straight with 1 foliform seta (l) at apex, seta l strongly enlarged, almost symmetrical, striate at base with a well-developed basal expansion. Gonostylus short, strong, with a patch of long spicules at midlength on dorsal surface, distal 0.5 widened and abruptly tapering to apex in lateral view, bearing a conspicuous subapical crest on ventral side restricted to widest part; gonostylar claw long, leaf-like, 2 setae on dorsal side before gonostylar claw, distal seta slightly larger and longer than proximal seta. Phallosome with lateral plates and aedeagal sclerites equivalent in length; aedeagal sclerite narrow, curved in lateral view with anterior margin thickened and sclerotized, narrowly fused to base of lateral plate; distal part of lateral plate with median, sternal and tergal processes; apical median process conical with apex produced into a point tergad, tergal margin of apical process concave; apical sternal process short, somewhat hook-like, pointed, curved laterally; apical tergal process elongate, shorter than apical median process, pointed and directed dorsolaterally; base of lateral plate with short tergal process; aedeagal sclerite not connected by dorsal aedeagal bridge. Proctiger elongate; paraproct narrowed distally, expanded basally, crown a row of about 14 or 15 short simple blades. Cercal sclerite long and narrow with 2 or 3 cercal setae. Basal plate and paramere as figured. Tergum X somewhat rectangular in outline, rounded at apex. Etymology. This species is dedicated to Rosa Sá Gomes Hutchings for her valuable work on the diversity of mosquitoes in the Brazilian Amazon (e.g. Hutchings et al. 2005, 2010, 2013, 2018, 2020), and particularly on species allied to Culex coppenamensis Bonne-Wepster & Bonne, 1920, published in Sallum & Hutchings (2003) and Hutchings & Sallum (2008). Bionomics. Very little is known about the bionomics of Cx. hutchingsae. Immature stages were collected among roots and dead leaves at the edge of a large ground pool in rainforest (Fig. 5A). Water was highly brown-coloured with dissolved plant substances, acidic (pH = 5.9), moderately warm (26.4°C) and with a conductivity of 390 µS/ cm. Immature stages of Cx. hutchingsae were collected together with Anopheles (Anopheles) punctimacula Dyar & Knab, 1906a, Cx. (Mel.) rabelloi Forattini & Sallum, 1987 and Cx. (Mel.) serratimarge Root, 1927b. Distribution. Culex hutchingsae is known from the type locality and Gare Tigre, French Guiana (Fig. 1A). The latter is located at 45 km north-northeast from the type locality, but this area has been flooded since 1994 following the construction of the Petit Saut dam. Specimens of Cx. hutchingsae collected at Gare Tigre on 30 October 1945 were initially identified as Cx. coppenamensis by Floch (1946) and Floch & Abonnenc (1947). More recently, they were regarded as Cx. coppenamensis Form 2 by Sallum & Hutchings (2003) and as Cx. coppenamensis by Talaga et al. (2021). Type material. Holotype: Adult male in 96% ethanol with dissected genitalia mounted on a microscope slide and associated pupal and larval exuviae in 70% ethanol (specimen numbers ST1#01727, BOLD: FGMOS2912- 22), FRENCH GUIANA: Montagnes de la Trinité, Mare Aya (53.41445° W, 4.60289° N, 120 m above sea level), 5-XI-2020, S. Talaga, IPG. Paratypes: Two individualized adult males in 96% ethanol with dissected genitalia mounted on separate microscope slides and individualized associated pupal exuviae in 70% ethanol (specimen numbers ST1#01729, BOLD: FGMOS2914-22 and ST1#01734, BOLD: FGMOS2919-22), same collection data as the holotype, IPG. Other material examined. One male genitalia mounted on a microscope slide (IPG1#00639) and associated pupal and larval exuviae mounted on a separate microscope slide (IPG1#00603), original specimen number N°817 (17A), FRENCH GUIANA: Gare Tigre, 30-X-45, E. Abonnenc, IPG.Published as part of Talaga, Stanislas & Gendrin, Mathilde, 2022, Three new species of Culex (Melanoconion) (Diptera: Culicidae) from French Guiana based on morphological and molecular data, pp. 177-189 in Zootaxa 5205 (2) on pages 181-183, DOI: 10.11646/zootaxa.5205.2.5, http://zenodo.org/record/730585
Ecology, diversity and evolution of Guianese mosquitoes (DipteraCulicidae) : implications for Aedes aegypti (L.) invasiveness
No full textLe moustique Aedes (Stegomyia) aegypti (Linnaeus 1762) a été introduit dans les Amériques depuis le continent africain il y a environ 400 ans. Actuellement, cette espèce est la principale responsable des épidémies de dengue et de chikungunya dans la zone pantropicale et sa large répartition a très probablement joué un rôle important dans l’expansion récente du virus Zika. La biologie d’Ae. (Stg.) aegypti est particulièrement bien connue, ce qui n’est pas le cas de son écologie, en particulier de ses interactions avec les communautés résidentes. En adoptant une démarche pluridisciplinaire je me suis intéressé à la contribution relative des facteurs biotiques et abiotiques ainsi que de certains processus évolutifs dans la distribution de cette espèce à différentes échelles en Guyane française.Dans un premier temps j’ai participé à la révision des connaissances fondamentales sur la diversité des moustiques de Guyane. En alliant la taxonomie classique et moléculaire, cette étape a permis de découvrir plusieurs nouvelles espèces et de mettre en place des outils adaptés à la gestion de ce type de données, notamment pour une utilisation future.Dans un second temps la structuration spatio-temporelle des communautés résidentes de macro-invertébrés aquatiques a été étudiée en milieu urbain. Cela a permis de mettre en évidence l’existence d’interactions antagonistes et mutualistes avec les taxons des communautés résidentes. En particulier, le moustique autochtone Limatus durhamii Theobald 1901 semble empêcher l’établissement durable d’Ae. (Stg.) aegypti dans les milieux faiblement urbanisés via un mécanisme d’exclusion compétitive.The mosquito species Aedes (Stegomyia) aegypti (Linnaeus 1762) was introduced into the Americas some 400 years ago from the African continent. Currently, this species is the primary agent behind dengue and chikungunya outbreaks in the pan-tropical area and its widespread distribution has likely played an important role in the recent expansion of the Zika virus. The biology of Ae. (Stg.) aegypti is particularly well known, which is not the case for its ecology. By adopting a cross-disciplinary approach I attempted to understand the relative contribution of biotic and abiotic factors as well as some evolutionary processes in the distribution of this species at the local and regional scales in French Guiana.Initially, I was interested in revising the core knowledge concerning the diversity of mosquitoes in French Guiana. By combining traditional and molecular taxonomy, this step allowed my colleagues and I to discover several new species and to create the appropriate tools to manage this type of entomological data.Secondly, we studied the spatio-temporal structure of resident aquatic macroinvertebrate communities in urban areas. This highlighted the existence of antagonistic and mutualistic interactions. In particular, the native mosquito Limatus durhamii Theobald 1901 appears to prevent the sustainable establishment of Ae. (Stg.) aegypti in slightly urbanized environments via a mechanism of competitive exclusion
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