171,084 research outputs found
Cotinis patricialvarezae Gasca-Alvarez & Deloya, new species
No full textCotinis patricialvarezae Gasca-Álvarez & Deloya, new species (Figs. 1–7) Type material. Holotype male labeled “ VENEZUELA. State of Lara, Barquisemeto. 9 -V- 68. José M. Osorio Coll”. Single male paratype labeled “ VENEZUELA. Dept. Lara, Aqua Viva (Cabudare). IV- 1982, J. S. González”. Types deposited at the Florida State Collection of Arthropods (Gainesville, Florida, United States of America). Holotype. Male (Figs. 1–2). Length 23.6 mm; width across humeri 13.1 mm. Color: Head bright green with some red-brown reflections. Pronotum bright green. Elytra opaque red-brown with green reflections. Ventral region and legs glossy greenish brown. Pygidium bright red-brown. Head: Surface rugopunctate, punctures strong and sparse; sparsely setose with sparse, small, pale yellow setae. Clypeal projection developed, triangular, rounded at apex (Fig. 3). Frontoclypeal depression with conspicuous medial ridge extending to the base of clypeal projection. Frontal projection straight, apex expanded apically and truncate, partially free, fused 80 % to head on basal third (Fig. 4). Antenna with 10 antennomeres. Pronotum: Surface finely punctate with a shallow, median, longitudinal impression; disc smooth, punctures becoming much larger and strong impressed laterally. Marginal bead complete at sides. Apical margin with rounded protuberance at middle. Dorsal surface of mesepimera punctate, punctures moderate in size. Elytra: Surface smooth, finely punctate with 2 slightly marked, longitudinal costae converging at apical umbone. Humerus prominent. Pygidium: Base and angles rugose, with transverse strigulations, unicolorous, without setae; apex rounded, surface slightly convex in lateral view. Legs: Protibiae tridentate, basal tooth short, shorter than second tooth; apical and median teeth closer to each other than to basal tooth. Metatibial spurs slender, with acute apices. Venter: Mesometasternal projection broad, expanded apically; sides weakly concave; apex rounded (Fig. 5). Metasternum with central longitudinal line, with sparse, small punctures at center, sides with fine impressed punctures; pale yellow setae short. Parameres: Elongate; narrow at middle, apex rounded; anterocentral margins slightly curved, anterolateral projections developed, former into lobes directed at right angle. Sides with a conspicuous, rounded tooth under the anterolateral projections (Figs. 6–7). Internal sac with sclerotized area dark, bearing a single, stout spine. Female. Unknown. Variation. Male (1 paratype). Length 21.1 mm; width across humeri 11.9 mm. The paratype does not differ significantly from the holotype except the pygidium is slightly smooth at apex. Diagnosis. Cotinis patricialvarezae can be distinguished by the violet color of elytra with bright reflections, triangular shape of the clypeal projection, parameres elongate (Figs. 6–7), and the single spine on the internal sac. Distribution. Cotinis patricialvarezae is known only from the type locality in Lara, Venezuela (Fig 8). The habitat is lowland in which the vegetation is composed of thorny shrubs (Huber & Oliveira-Miranda 2010). This species represents the first record of Cotinis for Venezuela and is the furthest southeastern occurrence of the genus, expanding its distributional range by approximately 600 km. The geographical distribution of the new species corresponds to the continuity of the Colombian Andes mountain range, which extends into Venezuela ending at the Merida Cordillera. Solís (2004) reported C. lebasi from Guyana but without any evidence to support this record. Due this species is so far out of their normal range, we consider the record to be erroneous. Etymology. This species is dedicated to Patricia Álvarez de Gasca, mother of the first author. Taxonomic remarks. Goodrich (1966) suggested that C. barthelemyi (Gory & Percheron) is closely related to C. laticornis Bates, but he did not provide information to explain this relationship. Our character analysis indicates that C. patricialvarezae is related to C. barthelemyi (Figs. 9–10) base on the shape and color of the body, and shape of the frontal projection. They differ by the form of the clypeal projection, which is subtrapezoidal in C. patricialvarezae and parallel-sided in C. barthelemyi (Fig. 11); the greater fusion of the frontal projection to the head in C. patricialvarezae (Fig. 12); the curved mesometasternal sutures in C. patricialvarezae right-angled sutures in C. barthelemyi (Fig. 13); and the shape of the parameres (Figs. 14–15). Other diagnostic characters for distinguishing these species are summarized in Table 2. Cotinis patricialvarezae is also morphologically similar to C. aliena Woodruff in body size, body form, and form of the clypeal projection, but the frontal projection, elytra punctation, and parameres of C. aliena are different from those of C. patricialvarezae.Published as part of Gasca-Álvarez, Héctor Jaime & Deloya, Cuauhtémoc, 2015, A new species and first record of Cotinis Burmeister (Coleoptera: Scarabaeidae: Cetoniinae) for Venezuela, pp. 125-136 in Zootaxa 3948 (1) on pages 127-130, DOI: 10.11646/zootaxa.3948.1.8, http://zenodo.org/record/24438
Hologymnetis reyesi Gasca and Deloya 2015
No full textHologymnetis reyesi Gasca and Deloya, 2015 (Figs. 1 – 7, 9, 16) Description. Female. Length 16.0 – 18.0 mm; width 9.0 – 10.0 mm. Color dark reddish brown (Fig. 6) in specimens at hand, probably varies to smokey grey based upon color of the males. Abdominal sternites shiny dark reddish brown, sternites 1 – 5 with enamel-like, light brown (tan) color reduced to extreme lateral edges and with short, narrow, tan macula on anterior edge of sternites 2 – 5 either side of middle (Fig. 7). Head: Surface with punctures moderate in size and density, setigerous; setae short, tawny. Clypeal apex broadly subtruncate, feebly emarginate at middle; apical margin narrowly reflexed. Eyes large, interocular width equals 4.5 transverse eye diameters as seen from above. Scape and eye canthus with numerous, tawny setae. Pronotum: Surface with punctures moderate in size, sparse. Lateral margin on basal half only with strong bead. Mesepimeron with punctures moderate in size and density, setigerous; setae long, dense, tawny. Elytra: Surface with punctures moderate in size and density, round to n-shaped, ocellate, minutely setigerous, some in incomplete rows on disc. Elevated sutural and discal costae absent. Pygidium: Surface with large, dense, crescentshaped and c-shaped, setigerous punctures; setae minute, dark. Venter: Metasternum with large, dense, confluent, setigerous punctures, setae sparser than in male but still long (Fig. 7). Mesometasternal process short, extending anteriorly beyond mesocoxae but not reaching procoxae; ventral surface flat, in same plane as longitudinal axis of body; anterior surface with long, slender setae that curl around apex. In ventral view, sides of mesometasternal process taper to shiny, reddish brown, rounded apex. Abdominal sternites 1 – 5 with moderate to large, round to kidney-shaped, setigerous punctures on lateral fourths; setae minute, tawny. Legs: Protibia with 3 subequally spaced teeth. Male. The following characteristics vary from the female and expand the original description based on the male holotype. Length 17.0 – 18.0 mm; width across humeri 9.0 – 10.3 mm. Color dorsally opaque smokey grey to dark reddish brown (Fig. 1). Pronotum of grey specimens with light brown, longitudinal line at center, reddish brown specimens lacking line. Elytra: Punctures small to large, moderately densely punctate, punctures round to kidneyshaped, u-shaped near apex. Elevated costae absent or sutural costa and 2 discal costae weakly elevated, discal costae terminating at apical umbone. Pygidium: Setae pale or dark. Venter: Color shiny, dark reddish brown overlain with enamel-like, grey or light to dark brown (Fig. 2); abdominal sternites 1 – 5 completely smokey grey or light brown with moderate to large, round to kidney-shaped, setigerous punctures that extend across entire sternite; setae long, dense. Parameres: In caudal view, base broadly rounded and abruptly tapering to elongated shaft with laterally projecting tooth at apex. In lateral view, phallobase twice as long as parameres (Figs. 3 – 5, 9). Distribution. Hologymnetis reyesi was described from one specimen collected 18.2 km south of Colima, Colima, Mexico. The new specimens reported here are from Ixtapan del Oro, Estado de México, and Acahuizotla, Guerrero (Fig. 16), which are new state records. This extends the known distribution of H. reyesi approximately 360 km to the east and 484 km to the southeast. Locality Records. MEXICO (6). COLIMA (1): Colima (probably the municipality of Ixtlahuacán). GUERRERO (1): Acahuizotla. ESTADO DE MÉXICO (4): Ixtapan del Oro. Temporal Distribution. May (1), June (5). Diagnosis. Hologymnetis reyesi is distinguished by its velutinous, smokey grey to dark reddish brown color on the dorsum and enamel-like, light brown or grey color on the abdominal sternites (extensive in males, greatly reduced in females); meso- and metasternal areas of the mesometasternal process contiguously joined by shiny, dark reddish brown coloration; long, dense setae on the metasternum; and parameres broadly rounded at their bases and with a laterally projecting tooth at their apices (Figs. 3, 9). Hologymnetis reyesi is sympatric with H. cinerea and H. margaritis but is distinguished by the long, dense setae on the metasternum in H. reyesi (short and sparse in H. cinerea and H. margaritis), and the parameres are different (compare Figs. 9, 10, and 12). In addition, the abdominal sternites in both sexes of H. cinerea are completely shiny black, whereas they are light brown or grey in H. reyesi. Natural History. The specimens from Ixtapan del Oro were all found dead in a water tank at an elevation of 1,800 m. The habitat of Ixtapan del Oro is montane tropical forest with pines, cedar, and oaks interspersed with farms, and that of Ixtlahuacán is tropical deciduous forest. The habitat of Acahuizotla is an ecotone composed of subdeciduous and deciduous tropical forest (600 – 1,000 m) and oak forest (1,100 m). Several new scarab species have been described from Acahuizotla during the last three decades, e.g., Cotinis ibarrai Deloya and Ratcliffe, 1988 (Cetoniinae), Onthophagus villanuevai Delgado and Deloya, 1990 (Scarabaeinae), Iridisoma acahuizotlensis Delgado and Moron, 1991 (Cetoniinae), and Chasmodia jamesonae Delgado, 1997 (Rutelinae).Published as part of Ratcliffe, Brett C., Gasca-Álvarez, Héctor Jaime & Deloya, Cuauhtémoc, 2017, Description of the Female ofHologymnetis reyesiGasca and Deloya (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini), with New State Records for Mexico and a Bilingual Key to the Species ofHologymnetisMartínez, pp. 143-151 in The Coleopterists Bulletin 71 (1) on pages 144-146, DOI: 10.1649/0010-065X-71.1.143, http://zenodo.org/record/536196
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