Ctenocolum punctinotatus 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 punctinotatus

description: Ctenocolum punctinotatus Albuquerque & Ribeiro-Costa sp. nov.
(Figs. 15, 28, 40, 59, 72, 84, 96)
Type material. Holotype deposited in FSCA, male: “ ECUADOR / Guayaquil-Los Ceibos/ 11-18-1981 / Gary V. Manley” [white label printed in black]; “ Caryedes / or/ Ctenocolum / det. n. sp./ J. M. Kingsolver” [white label with black margin, det. J. M. Kingsolver letters printed in black, remainder handwritten in black]; “♂” [white label printed in black]; “ HOLOTYPE / Ctenocolum punctinotatus / Det. Albuquerque & Ribeiro-Costa” [white label with red margin, printed in black].
Diagnosis. Ctenocolum punctinotatus Albuquerque & Ribeiro-Costa sp. nov. is different from C. pygospilotos Albuquerque & Ribeiro-Costa sp. nov. by having punctures on pygidium moderately impressed (deeply impressed in C. pygospilotus) and tegmen with U emargination (V emargination in C. pygospilotus). And from the other species by having, in the internal sac of male genitalia, a C-shaped sclerite involved by spicules and a squamous hood-shaped sclerite (Fig. 84).
Description. BL: 2.5 mm; BW: 1.6 mm.
Integument. Dorsum reddish brown and from dark brown to black. Antenna pale brown (Figs. 15, 59). Pygidium rufous. Ventral region reddish brown and black. Front and middle femur and tibia pale brown; hind femur from brown, reddish brown to dark.
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 and longitudinal strip of denser setae (Fig. 15). Elytra slightly variegated, yellowish gray and white setae; interstria 3 without white setae (Fig. 15). Pygidium white and yellowish gray; probably only with two submedian lateral areas of sparse seta (Fig. 40). Ventral region yellowish gray and white (Fig. 59).
Head. Ocular sinus 0.2 mm; ocular index 8.0; length of eyes in frontal view behind sinus 0.09 mm (Fig. 28). Antenna serrate from antennomere 4-10. Frons with frontal carina (Fig. 28).
Prothorax. Pronotum with median gibbosity slightly elevated, not divided by longitudinal and transversal sulcus; lateral gibbosity slightly elevated; basal lobe without depression and slightly emarginated (Fig. 15).
Mesothorax and metathorax. Elytra, striae with punctures deeply impressed; 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. 72) on external ventral margin with toothed carina; without denticles above of external ventral margin; pecten with 7 teeth. Hind tibia (Fig. 72) strongly emarginated beside mucro; lateral coronal denticles present.
Abdomen. Pygidium longer than wide, oval, at median basal region with moderately impressed punctures (Fig. 40).
Male genitalia. Median lobe, ventral valve as long as wide, lateral margin concave on subapical region (Fig. 84), basal margin slightly emarginated. Internal sac, lateral apex with short tuft of setae, hinge sclerite inverted Lshape, short, extending over 1/3 of subapical region; subapical region with homogeneously distributed spicules, dense in vertical rows forming an elongated strip medially; median region with C- shape sclerite involved by spicules (Fig. 84); submedian region with squamous hood- shape sclerite (Fig. 84); basal region without denticles, spines and spicules. Tegmen (Fig. 96), lateral lobes separated by emargination about 0.75 times the length of lateral lobes; expanded at apex, about 5.5 times the smallest width on median region; internal margin near end of emargination curved, forming a "U"; without membranous projection at apex.
Note. The female and host plants unknown.
Etymology. The specific name “ punctinotatus ” refers to the punctures deeply impressed on striae of elytra.
Distribution. Neotropical region: Ecuador (Guayas).
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 pages 32-33, DOI: 10.11646/zootaxa.3838.1.1, http://zenodo.org/record/286727