Ctenocolum pygospilotos Albuquerque & Ribeiro-Costa, sp. nov.
Creators: name: Albuquerque, Felícia Pereira De
name: Manfio, Daiara
name: Ribeiro-Costa, Cibele Stramare
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Ctenocolum
Ctenocolum pygospilotos

description: Ctenocolum pygospilotos Albuquerque & Ribeiro-Costa sp. nov.
(Figs. 16, 29, 41, 60, 73, 85, 97)
Type material. Holotype deposited in USNM, male: “Donald De Leon/ *83240June’40/ St. Thomas, A.V.I.” [white label handwritten in black]; “From Ichthyo-/ methia pisci–/ pula seeds” [white label handwritten in black]; “HOMOTYPE/ Bruchus / podagricus F./ 1967/ Comp. by JV. G. Larsson” [white label with black margin, HOMOTYPE letters printed in red, remainder handwritten in black]; “♂” [white label printed in black]; “ HOLOTYPE / Ctenocolum pygospilotos / Det. Albuquerque & Ribeiro-Costa” [white label with red margin, printed in black].
Diagnosis. See comments in C. punctinotatus.
Description. BL: 2.8 mm; BW: 2.0 mm. Integument. Dorsum reddish brown and black. Antenna dark brown and dark brown, first 3 paler (Figs. 16, 60). Pygidium reddish brown and black. Ventral region reddish brown and black. Front and middle femur and tibia brown; hind femur brown and dark brown.
Pubescence. Pronotum yellowish gray, brown and white; sparse setae exposing the integument forming an oval, wide area from anterior to posterior region divided by transversal strip of dense setae (Fig. 16). Elytra slightly variegated, yellowish gray and white; interstria 3 without white setae at base and at submedian region with short sparse strip of white setae (Fig. 16). Pygidium white and yellowish gray, dense except two small lateral and one larger at median and apical areas with sparse setae (Fig. 41). Ventral region yellowish gray and white (Fig. 60).
Head. Ocular sinus 0.3 mm; ocular index 6; length of eyes in frontal view behind sinus 0.12 mm (Fig. 29). Antenna serrate from antennomere 4-10 (Fig. 60). Frons with frontal carina (Fig. 29).
Prothorax. Pronotum with median gibbosity slightly elevated, not divided by longitudinal and transversal sulcus (Fig. 60); lateral gibbosity slightly elevated; basal lobe with depression and slightly emarginated (Fig. 16).
Mesothorax and metathorax. Elytra, striae with punctures deeply impressed (Fig. 16); less conspicuous teeth at base of striae 3 and 4; tooth of stria 4 closer to base of tooth of stria 3 than to anterior margin of elytra; stria 6 conspicuously impressed. Hind femur (Fig. 73) on external ventral margin with toothed carina; without denticles above of external ventral margin; pecten with 8 teeth. Hind tibia (Fig. 73) strongly emarginated beside mucro; lateral coronal denticles present.
Abdomen. Pygidium longer than wide, oval, at median basal region with deeply impressed punctures (Fig. 41).
Male genitalia. Median lobe, ventral valve as long as wide, lateral margin concave on subapical region (Fig. 85), basal margin strongly emarginated. Internal sac, lateral apex with short tuft of setae, hinge sclerite with base curved, short, extending over 1/3 of subapical region; subapical region with homogeneously distributed spicules, medially dense in elongated strip; median region with dense spicules forming two irregular elongated groups; submedian region with squamous open ring-shape sclerite (Fig. 85); basal region in lateral with sparse denticles. Tegmen (Fig. 97), lateral lobes separated by emargination about 0.75 times the length of lateral lobes; internal margin near end of emargination curved, forming a “U”; expanded at apex, about 4 times the smallest width on median region; without membranous projection at apex.
Note. The female is unknown.
Etymology. The specific name “ pygospilotos ” refers to punctures deeply impressed at pygidium.
Distribution. Neotropical region: United States Virgin Islands.
Host plant (Tables I–II). Papilionoideae: Piscidia piscipula (L.) Sarg. (= Ichthyomethia piscipula (L.) Hitchc.).
description: Published as part of Albuquerque, Felícia Pereira De, Manfio, Daiara & Ribeiro-Costa, Cibele Stramare, 2014, A contribution to the knowledge of New World Bruchinae (Coleoptera, Chrysomelidae): taxonomic revision of Ctenocolum Kingsolver & Whitehead, with description of five new species, pp. 1-45 in Zootaxa 3838 (1) on page 33, DOI: 10.11646/zootaxa.3838.1.1, http://zenodo.org/record/286727