Ctenocolum milelo 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 milelo

description: Ctenocolum milelo Albuquerque & Ribeiro-Costa sp. nov.
(Figs. 13, 26, 38, 49, 57, 70, 82, 94)
Type material. Holotype deposited in DZUP, male: “ Brasil – SP – Botucatu Fazenda/ Experimental Edgárdia–FCA–/ UNESP 2248’S 4824’W 577m / 15.VI.2009 L.M.S. Rodrigues” [white label printed in black]; “ Larva consumindo sementes de/ Lonchocarpus guillemineanus ” [white label printed in black]; “♂” [white label printed in black]; “ HOLOTYPE / Ctenocolum milelo / Det. Albuquerque & Ribeiro-Costa” [white label with red margin, printed in black]. 5 paratypes deposited in the following collections: 4 in DZUP, 1 male: “Porto Ferreira, SP/ Reserva Estadual – IF/ 28.IX.94 / E.P. Teixeira– col.” [white label with margin and E.P. Teixeira–col." printed in black, remainder handwritten in black]; “Hosp. Lonchocarpus / muehlbergianus / Hassl./ (loncocarpus)” [white label with margin, handwritten in black]; “♂” [white label printed in black]; “ PARATYPE / Ctenocolum milelo / Det. Albuquerque & Ribeiro-Costa” [white label with yellow margin, printed in black]. 1 male: “ Brasil – SP – Botucatu Fazenda/ Experimental Edgárdia–FCA–/ UNESP 2248’S 4824’W 577m / 15.VI.2009 L.M.S. Rodrigues” [white label printed in black]; “Larva consumindo sementes de/ Lonchocarpus guillemineanus ” [white label printed in black]; “♂” [white label printed in black]; “ PARATYPE / Ctenocolum milelo / Det. Albuquerque & Ribeiro-Costa” [white label with yellow margin, printed in black]. 1 female: “ Brasil – SP – Botucatu Fazenda/ Experimental Edgárdia–FCA–/ UNESP 2248’S 4824’W 577m / 15.VI.2009 L.M.S. Rodrigues” [white label printed in black]; “ Larva consumindo sementes de/ Lonchocarpus guillemineanus ” [white label printed in black]; “♀” [white label printed in black]; “ PARATYPE / Ctenocolum milelo / Det. Albuquerque & Ribeiro-Costa” [white label with yellow margin, printed in black]. 1 female: “BR–SP–Botucatu/ Fazenda Edgria– UNESP / 18/VI/2007 / Rodrigues,L.M. Col.” [white label with black margin, printed in black]; “Planta hospedeira/ Lonchocarpus / muehlbergianus ” [white label with black margin, printed in black]; “♀” [white label printed in black]; “ Ctenocolum / podagricus / (Fabricius, 1804)/ Viana, J. H. det. 2008” [white label with black margin, printed in black]; “ PARATYPE / Ctenocolum milelo / Det. Albuquerque & Ribeiro-Costa” [white label with yellow margin, printed in black]. 1 in FSCA, male: “ BOLIVIA: Santa Cruz/ Potrerillos del Guendá;/ 40Km.NW.SantaCruz/ 17 40.3’S – 06327.4’W/ 3–X–2007, R.Morris, light” [white label printed in black]; “♂” [white label printed in black]; “ PARATYPE / Ctenocolum milelo / Det. Albuquerque & Ribeiro- Costa” [white label with yellow margin, printed in black].
Diagnosis. Ctenocolum milelo Albuquerque & Ribeiro-Costa sp. nov. differs from C. triangulatus Albuquerque & Ribeiro-Costa sp. nov. by ocular index 4.9-7.0 and pygidium oval in male and triangular in females; is different from C. martiale by elytral striae 3 and 4 with less conspicuous teeth at base. This species is different from all other species by having a squamous sphere-shaped sclerite in the internal sac of male genitalia (Fig. 82).
Description. BL: 2.2–3.0 mm; BW: 1.5–2.0 mm. Integument. Dorsum mostly black. Antenna brown and dark brown or first 3 antennomeres paler (Figs. 13, 57). Pygidium reddish brown and black or rufous and black (Figs. 38, 49). Ventral region reddish brown and black. Front and middle femur and tibia brown; hind femur reddish brown and black.
Pubescence. Pronotum brown, black and white; sparse pubescence 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 area (Fig. 13). Elytra strongly variegated with brown, black and white setae; interstria 3 with short dense strip of white setae at base and at submedian region dense or sparse (Fig. 13). Pygidium brown and white; in females, dense white setae forming two lateral stripes and one apical spot less dense (Fig. 49), sparse setae forming two small submedian and one median large areas; in males, sparse setae forming four lateral small areas (Fig. 38). Ventral region brown, pale brown and white (Fig. 57).
Head. Ocular sinus 0.2–0.3 mm; ocular index 4.9–7.0; length of eyes in frontal view behind sinus 0.07–0.09 (Fig. 26). Antenna serrate from antennomere 4-10. Frons with frontal carina (Fig. 26).
Prothorax. Pronotum with median gibbosity slightly elevated, not divided by longitudinal and transversal sulcus (Fig. 57); lateral gibbosity slightly elevated; basal lobe with or without depression and slightly emarginated (Fig. 13).
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. 70) on external ventral margin with toothed carina; without denticles above of external ventral margin; pecten with 7–9 teeth. Hind tibia (Fig. 70) strongly emarginated beside mucro; lateral coronal denticles present.
Abdomen. Pygidium longer than wide, oval in males (Fig. 38), subtriangular in females (Fig. 49), at median basal region with moderately impressed punctures.
Male genitalia. Median lobe, ventral valve as long as wide, lateral margin concave on subapical region (Fig. 82), basal margin strongly emarginated. Internal sac, lateral apex with short tuft of setae, hinge sclerite pleated, long, extending to median region; subapical region with homogeneously distributed spicules; median region with agglomerate of spicules; submedian region with few sparse spines and squamous sphere-shape sclerite (Fig. 82); basal region without or with few sparse spines. Tegmen (Fig. 94), lateral lobes separated by emargination about 0.7 times the length of lateral lobes; internal margin near end of emargination straight, forming a “V”; expanded at apex, about 2.5 times the smallest width on median region; without membranous projection at apex.
Etymology. The specific name “ milelo ” is an anagram of surname from researcher Julianne Milléo.
Distribution. Neotropical region: Bolivia (Santa Cruz), Brazil (São Paulo).
Host plants. Papilionoideae: Lonchocarpus guillemineanus (Tul.) Malme and L. muehlbergianus Hassl.
Note. The species mentioned as C. podagricus by Rodrigues et al. (2012) belongs to C. milelo Albuquerque & Ribeiro-Costa sp. nov. In their paper, Rodrigues et al. (2012) developed an ecological study, in which they collected 16 species belonging to four families. A total of 1,037 bruchines belonging to five species emerged from fruits. Of these, one individual was Ctenocolum milelo Albuquerque & Ribeiro-Costa sp. nov., which emerged from Lonchocarpus muehlbergianus.
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 28-29, DOI: 10.11646/zootaxa.3838.1.1, http://zenodo.org/record/286727