Ctenocolum punctinotatus Albuquerque & Ribeiro-Costa

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, Zootaxa 3838 (1), pp. 1-45 : 32-33

publication ID	https://doi.org/ 10.11646/zootaxa.3838.1.1
publication LSID	lsid:zoobank.org:pub:1534C775-D28D-470F-9AEC-8BABB3D8FA56
DOI	https://doi.org/10.5281/zenodo.6124245
persistent identifier	https://treatment.plazi.org/id/03FF87F5-FFF6-FFDE-38AD-FD8EFCAA7148
treatment provided by	Plazi
scientific name	Ctenocolum punctinotatus Albuquerque & Ribeiro-Costa
status	sp. nov.

Treatment

Ctenocolum punctinotatus Albuquerque & Ribeiro-Costa sp. nov.

( Figs. 15 View FIGURES 8 – 16 , 28 View FIGURES 22 – 30 , 40 View FIGURES 35 – 43 , 59 View FIGURES 53 – 60 , 72 View FIGURES 72 – 76 , 84 View FIGURES 79 – 84 , 96 View FIGURES 91 – 99 )

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 View FIGURES 79 – 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 View FIGURES 8 – 16 , 59 View FIGURES 53 – 60 ). 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 View FIGURES 8 – 16 ). Elytra slightly variegated, yellowish gray and white setae; interstria 3 without white setae ( Fig. 15 View FIGURES 8 – 16 ). Pygidium white and yellowish gray; probably only with two submedian lateral areas of sparse seta ( Fig. 40 View FIGURES 35 – 43 ). Ventral region yellowish gray and white ( Fig. 59 View FIGURES 53 – 60 ).

Head. Ocular sinus 0.2 mm; ocular index 8.0; length of eyes in frontal view behind sinus 0.09 mm ( Fig. 28 View FIGURES 22 – 30 ). Antenna serrate from antennomere 4-10. Frons with frontal carina ( Fig. 28 View FIGURES 22 – 30 ).

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 View FIGURES 8 – 16 ).

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 View FIGURES 72 – 76 ) on external ventral margin with toothed carina; without denticles above of external ventral margin; pecten with 7 teeth. Hind tibia ( Fig. 72 View FIGURES 72 – 76 ) strongly emarginated beside mucro; lateral coronal denticles present.

Abdomen. Pygidium longer than wide, oval, at median basal region with moderately impressed punctures ( Fig. 40 View FIGURES 35 – 43 ).

Male genitalia. Median lobe, ventral valve as long as wide, lateral margin concave on subapical region ( Fig. 84 View FIGURES 79 – 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 View FIGURES 79 – 84 ); submedian region with squamous hood- shape sclerite ( Fig. 84 View FIGURES 79 – 84 ); basal region without denticles, spines and spicules. Tegmen ( Fig. 96 View FIGURES 91 – 99 ), 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).