Ctenocolum acapulcensis Kingsolver & Whitehead 1974
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 acapulcensis

description: Ctenocolum acapulcensis Kingsolver & Whitehead, 1974
(Figs. 18, 31, 43, 62, 75, 87, 99)
Ctenocolum acapulcensis Kingsolver & Whitehead (1974a): 286, 288, 289, 311 (original description, key, characters, distribution, figures, host plant, Type-locality: “ Mexico, Guerrero, Acapulco”); Janzen (1977): 417 (host plant); Janzen (1978): 183 (host plant); Janzen (1980): 947 (host plant); Johnson & Kingsolver (1981): 418 (catalog); Udayagiri & Wadhi (1989): 78 (catalog); Johnson (1998): 148 (distribution, host plant); Romero & Johnson (2004): 623 (catalog); Lorea- Barocio et al. 2006: 518 (distribution, host plant).
Caryedes acapulcensis: Lorea-Barocio et al. (2006): 518 (distribution, host plant).
Type material. Ctenocolum acapulcensis Kingsolver & Whitehead, 1974a. Holotype deposited in USNM, male: “Bot. N 226.” [white label handwritten in black]; “Acapulco./ Mex.” [white label handwritten in black]; “Collection/ Chittenden” [white label printed in black]; “ MEX. Guerrero./ Acapulco vic./ X.1894 – III.1895 / E. Palmer # 226” [white label handwritten in black]; “ Lonchocarpus / eriocarinalis / Micheli/ USNM herb.” [white label handwritten in black]; “acapulcaensis” [white label handwritten]; “habitus/ drawing” [white label handwritten in black]; “ HOLO /72797” [red label, HOLO letters printed in black, 72797 numbers handwritten in black]; “ HOLOTYPE ♂/ Ctenocolum / acapulcensis / Kings. + Whd.” [white label with red margin, HOLOTYPE letters printed in red, remainder handwritten in black].
Note. Kingsolver & Whitehead (1974a) indicated that the holotype and one paratype are deposited in the USNM. The holotype received from USNM was examined and coincide with the description (Kingsolver & Whitehead, 1974a).
Additional material. MEXICO: Jalisco: 2, La Huerta, Rancho Cuixmala, 1992, #1033, L. Rico col., reared seeds Lonchocarpus eriocarinalis (TAMU). COSTA RICA: Guanacaste: 1, Santa Rosa National Park, Bosque San Emilio, Setor Santa Rosa, 15.IV.1985, D. H. Janzen col., Lonchocarpus costaricensis (DZUP).
Diagnosis. Ctenocolum acapulcensis differs from all other species by having hind femur without toothed carina at the external ventral margin (Fig. 75). It is the only species of the group that has conspicuous teeth at the base of striae 3 and 4.
Redescription. BL: 4.4–4.8 mm; BW: 3.1–3.4 mm.
Integument. Dorsum black, sometimes mostly black and reddish brown. Antenna brown and dark brown; first antennomeres 8–10 almost entirely dark brown, last antennomere brown (Fig. 18). Pygidium rufous or brown or rufous and dark brown. Ventral region rufous, black and brown. Front and middle femur and tibia brown or brown and dark brown to black; hind femur reddish brown and black.
Pubescence. Pronotum brown, yellowish gray and black; sparse setae exposing the integument forming an oval, wide area from anterior to posterior region divided or not by transversal and longitudinal strip of denser setae and on each lateral region one small rounded area (Fig. 18). Elytra strongly variegated, brown, yellowish gray, black and white setae; interstria 1 bellow scutellum with yellowish gray and white short dense strip; interstria 3 only with white setae at submedian region (Fig. 18). Pygidium dense, white and yellowish gray; sparse setae on two basal and four lateral small areas; at median region a larger area with sparse setae (Fig. 43). Ventral region brown, yellowish gray and white (Fig. 62).
Head. Ocular sinus 0.3 mm; ocular index 8.0–11.6; length of eyes in frontal view behind sinus 0.34 mm (Fig. 31). Antenna strongly serrate from antennomere 3 or 4-10 in male. Frons with frontal carina (Fig. 31).
Prothorax. Pronotum with median gibbosity strongly elevated, divided or not by longitudinal sulcus and divided by transversal sulcus (Fig. 62); lateral gibbosity strongly elevated; basal lobe with or without depression and slightly or strongly emarginated (Fig. 18).
Mesothorax and metathorax. Elytra, striae with punctures moderately impressed; 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 not impressed, formed only by isolated puntuation. Hind femur (Fig. 75) on external ventral margin without toothed carina; without denticles above of external ventral margin; pecten with 10–12 teeth. Hind tibia (Fig. 75) slightly emarginated beside mucro; lateral coronal denticles absent.
Abdomen. Pygidium subequal, oval, at median basal region with moderately impressed punctures (Fig. 43).
Male genitalia. Median lobe with ventral valve as long as wide, lateral margin straight on subapical region (Fig. 87), basal margin not emarginated. Internal sac, lateral apex with short tuft of setae, hinge sclerite Sshaped, long, extending over 1/2 of subapical region; subapical region with homogeneously distributed spicules, forming an elongated strip; median region with homogeneously distributed spicules, dense denticles and smooth sclerite, subsquare with stems oriented forward, longer than central region (Fig. 87); submedian region without sclerite and denticles; basal region with spicules, without denticles and spines. Tegmen (Fig. 99), lateral lobes separated by emargination about 0.5 times the length of lateral lobes; internal margin near end of emargination curved, forming a "U"; not expanded at apex, about the same width of the median region; without membranous projection at apex.
Note. The males of this species are the only in the genus with strongly serrate antenna. Unfourtunately, we had not females in our samples to compare antennal forms.
Distribution. Neotropical region: Mexico (Jalisco, Guerrero), Costa Rica (Guanacaste).
Host plant (Tables I–II). Papilionoideae: Lonchocarpus eriocarinalis Micheli.
New record: Papilionoideae: L. costaricensis (Donn. Sm.) Pittier.
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 35-36, DOI: 10.11646/zootaxa.3838.1.1, http://zenodo.org/record/286727