Ctenocolum janzeni 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 janzeni

description: Ctenocolum janzeni Kingsolver & Whitehead, 1974
(Figs. 4, 19, 32, 44, 51, 63, 76, 88, 100)
Ctenocolum janzeni Kingsolver & Whitehead (1974a): 287, 289, 311 (original description, key, characters, distribution, figures, host plant, type-locality: “ Costa Rica, Puntarenas”); Janzen (1977): 417 (host plant); Johnson (1977): 313 –318 (biology, distribution, ecology, host plant); Janzen (1978): 183 (host plant); Janzen (1980): 947 (host plant); Johnson & Kingsolver (1981): 418 (catalog); Hetz & Johnson (1988): 134 (parasitoids); Udayagiri & Wadhi (1989): 79 (catalog); La Rosa & Romero-Nápoles (2002): 189 (distribution, ecology, host plant); Turnbow et al. 2003: 274 (catalog); Johnson & Romero (2004): 404 (oviposition); Romero & Johnson (2004): 623 (catalog); Silva & Ribeiro-Costa (2008): 803, 808, 818, 819, 821 (distribution, taxonomy) Romero-Nápoles & Westcott (2011): 11 (distribution, host plant).
Caryedes janzeni: Lorea-Barocio et al. (2006): 518 (catalog); Peck et al. (2014): 101 (distribution).
Type material. Ctenocolum janzeni Kingsolver & Whitehead, 1974a. Holotype deposited in USNM, male: “C.R. Puntarenas/ Prov., 4 mi. n./ Jet. To Puntarenas/ 6.III.1972 DH.Janzen” [white label handwritten in black]; “reared ex. Piscidia / fruits, em.by/ 20.VI.1972 / CODE: VI–20–1972 –X” [white label handwritten in black]; “ HOLO / 72798” [red label, “ HOLO letters printed, 72798 numbers handwritten in black]; “♂” [white label printed in black]; “ HOLOTYPE / Ctenocolum / janzeni / Kings. + Whd.” [white label with red margin, HOLOTYPE letters printed in red, remainder handwritten in black]. 1 paratype deposited in USNM, male: “ MEX. Sonora./ Torres./ 10.II.1903 / F.V.Coville # 1659”[white label handwritten in black]; “ex Piscidia / mollis Rose / USNH.” [white label handwritten in black]; “ PARATYPE / Ctenocolum / janzeni / Kings. + Whd.” [white label with blue margin, PARATYPE letters printed in blue, remainder handwritten in black]; “♂” [white label printed in black].
Note. Kingsolver & Whitehead (1974) indicated that the holotype is deposited in the USNM and the eight paratypes are deposited in the CNC and USNM. The holotype and the paratype received from USNM were examined and coincide with the description.
Additional material. MEXICO: Sonora: 2, Lake Mocuzari, 22.XII.1976, emerged in 30.III. 1977, C. D. Johnson col., reared seeds 142-76, Piscidia mollis (TAMU); 2, same information (DZUP); 1, same information except, 29.XII.1977, emerged in 9.V. 1978, reared seeds 193-77 (DZUP); 1, 21 mi. NW Álamos, 22.XII.1976, reared seeds 160-76, emerged in 2.V.1977, same collector and host plant (TAMU); Oaxaca: 3, 12 mi. W Tehuantepec, 02.IV.1979, emerged in 15.XI.1979,C. D. Johnson col., reared seeds 1086-79, Lonchocarpus emarginatus (TAMU); 2, same information (DZUP); 1 same information, except emerged 3.V.1979 (DZUP). COSTA RICA: Guanacaste: 2, Palo Verde, 26.III.1974, D. H. Janzen col., Piscidia carthagenensis (USNM).
Diagnosis. Ctenocolum janzeni and C. salvini differs from the others by having on hind femur denticles above the external ventral margin (Figs. 76, 77). Ctenocolum janzeni differs from the others species by having, the internal sac of the male genitalia, an hourglass-shaped sclerite with apex elongate, extending until subapical region (Fig. 88).
Redescription. BL: 3.1–3.9 mm; BW: 2.1–2.6 mm.
Integument. Dorsum variegated of black and rufous, brown to dark brown. Antenna from pale brown to black; antennomeres 8–10 black (Fig. 19). Pygidium brown and black or reddish brown and black. Ventral region reddish brown and black. Front and middle femur and tibia variegated of pale brown to black or only pale brown; hind femur reddish brown and black.
Pubescence. Pronotum brown, yellowish gray, black 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 and on each lateral region two small areas, in some specimens sparse areas absent (Fig. 19). Elytra strongly variegated, brown, yellowish gray, black and white; interstria 3 only with dense strip of white setae at submedian region (Fig. 19). Pygidium dense, white or yellowish gray; sparse setae, more in female (Fig. 51) than in male (Fig. 44), on two basal “C” pattern areas, on four lateral small areas and on a larger median area (Figs. 44, 51). Ventral region brown, yellowish gray and white (Fig. 63).
Head. Ocular sinus 0.2–0.3 mm; ocular index 4.5–7.1; length of eyes in frontal view behind sinus 0.1–0.2 (Fig. 32). Antenna serrate from antennomere 3-10 in male and from 4-10 in female. Frons with a longitudinal area not elevated as a carina of the other species (Fig. 32).
Prothorax. Pronotum with median gibbosity strongly elevated, divided by longitudinal and transversal sulcus (Fig. 63); lateral gibbosity strongly elevated; basal lobe generally without depression and slightly or strongly emarginated (Fig. 19).
Mesothorax and metathorax. Elytra, striae with punctures moderately 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. 76) on external ventral margin with toothed carina; with denticles above of external ventral margin; pecten with 13–18 teeth. Hind tibia (Fig. 76) moderately emarginated beside mucro; lateral coronal denticles present.
Abdomen. Pygidium longer than wide, oval, at median basal region with moderately impressed punctures (Figs. 44, 51).
Male genitalia. Median lobe with ventral valve wider than long, lateral margin straight on subapical region (Fig. 88), basal margin not emarginated. Internal sac, lateral apex with short tuft of setae, hinge sclerite Jshaped, long, extending through subapical region; subapical region with few spicules; median region with few sparse spicules, sparse setae in lateral, with dense denticles and smooth sclerite, hourglass-shaped sclerite with elongate apex extending until subapical region and stems oriented forward, shorter than central region (Fig. 88); submedian region with dense denticles; basal region without denticles or spines. Tegmen (Fig. 100), lateral lobes separated by emargination about 0.6 times the length of lateral lobes; internal margin near end of emargination straight, forming a “V”; not expanded at apex, about the same width of the median region; without membranous projection at apex.
Distribution. Nearctic region: Mexico (Sonora, Tamaulipas). Neotropical region: Mexico (Sinaloa, San Luis Potosi, Jalisco, Veracruz, Morelos, Oaxaca), Guadeloupe, Honduras (Olancho), Costa Rica (Puntarenas).
New record: Costa Rica (Guanacaste*).
Host plants (Tables I–II). Papilionoideae: Lonchocarpus rugosus Benth., Piscidia sp., Piscidia carthagenensis Jacq., Piscidia grandifolia (Donn. Sm.) I. M. Johnst., Piscidia mollis Rose.
New record: Papilionoideae: Lonchocarpus emarginatus 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 36-38, DOI: 10.11646/zootaxa.3838.1.1, http://zenodo.org/record/286727