Ctenocolum tuberculatum ( Motschulsky, 1874 )

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 : 39-42

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.6124260
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scientific name	Ctenocolum tuberculatum ( Motschulsky, 1874 )
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Ctenocolum tuberculatum ( Motschulsky, 1874)

( Figs. 1–3 View FIGURES 1 – 7 , 21 View FIGURES 17 – 21 , 34 View FIGURES 31 – 34 , 46 View FIGURES 44 – 46 , 52 View FIGURES 47 – 52 , 65 View FIGURES 61 – 65 , 78 View FIGURES 77 – 78 , 90 View FIGURES 85 – 90 , 102 View FIGURES 100 – 102 )

Pachymerus tuberculatus Motschulsky (1874): 244 , 245 (original description, type-locality: “ Panamá ”); Sharp (1885): 440 (= Bruchus longicollis ).

Pseudopachymerus longicollis var. tuberculatus: Pic (1913a) : 11 (catalog).

Caryedes longicollis var. tuberculata: Blackwelder (1946): 758 (catalog).

Ctenocolum tuberculatum: Kingsolver & Whitehead (1974a) : 287, 290, 311 (redescription, key, characters, distribution, figures, type-locality, host plant); Janzen (1977): 417 (host plant); Janzen (1978): 183 (host plant); Janzen (1980): 947 (host plant); Johnson & Kingsolver (1981): 419 (catalog); Udayagiri & Wadhi (1989): 79 (catalog); La Rosa & Romero- Nápoles (2002): 189 (host plant); Turnbow et al. (2003): 274 (catalog); Romero & Johnson (2004): 623 (catalog); Silva & Ribeiro-Costa (2008): (distribution, taxonomy).

Caryedes tuberculatum: Lorea-Barocio et al. (2006): 518 (catalog).

Bruchus serratissimus Sharp (1885): 443 (original description, type-locality: Guatemala); Kingsolver & Whitehead (1974a): 290 (synonym).

Pseudopachymerus serratissimus: Pic (1913a) : 12 (catalog).

Caryedes serratissima: Blackwelder (1946): 758 (catalog); Wilcox (1975): 10 (catalog).

Type material. Pachymerus tuberculatus Motschulsky, 1874 . Not examined. Note. In the original description of Pachymerus tuberculatus, Motschulsky (1874) did not specify how many specimens he studied. He also failed to mention which museum the material was deposited. According to Kingsolver & Whitehead (1974a) the type material is deposited in Zoological Museum, Moscow State University, Moscow. The material was requested but we have not received it for study.

Bruchus serratissimus Sharp, 1885 . Holotype, deposited in BMNH, female: “ Bruchus View in CoL serra–/ tissimus. Type / D.S./ Paso Antonio./ Guat. Champion” [white label, handwritten in black]; " Type " [round, red label with white center, printed in black]; “Paso Antonio,/ 400 ft./Champion” [white label handwritten in black]; “B. C. A. Col. V. / Bruchus View in CoL / serratissimus ,/ Sharp.” [white label with black margin, printed in black]; “♀” [white label printed in black]; “ HOLOTYPE / Bruchus serratissimus / Sharp, 1885 / Det. Albuquerque & Ribeiro-Costa” [white label with red margin, printed in black]; “ Ctenocolum tuberculatum / ( Motschulsky, 1874)/ F. P. Albuquerque det. 2013 ” [white label with black margin, printed in black].

Note. In the original description of Bruchus serratissimus, Sharp (1885) did not specify where the type material is deposited, but indicated that one specimen was studied. However, in the literature the type material is indicated as deposited in t he BMNH ( Kingsolver & Whitehead 1974a). Was received from this museum one specimen that confers with the original description of Sharp (1885), being considered here as a holotype.

Additional material. MEXICO: Jalisco: 4, 34 mi. NW Barra de Navidad, 09.III.1973, emerged in 29.XII. 1973, C. D. Johnson col., reared seeds 438-73, Lonchocarpus nitidus ( TAMU); 4, same information, except emerged in 9.X.1973 ( TAMU); 1, same information, exept emerged in 23.XI.1973 ( TAMU); 1 same information, exept emerged in 9.X. 1973 ( DZUP); 1 same information, exept emerged in 29. XII. 1973 ( DZUP). COSTA RICA: Guanacaste: 3, 1.3 mi. E Playa Coco, 03.XII.1970, D. H. Janzen col., Lonchocarpus sp., #307, ( USNM); 1, same locality, without date, collector and host plant ( USNM); 2, same locality, date, collector and host plant ( BMNH); 1, same locality, date, collector and host plant ( DZUP).

Diagnosis. Ctenocolum tuberculatum differs from the other species by having in the internal sac of the male genitalia a suboval sclerite with stems oriented forward, shorter than the central region ( Fig. 90 View FIGURES 85 – 90 ).

Redescription. BL: 2.5–3.9 mm; BW: 1.7–2.3 mm.

Integument. Dorsum black or black and reddish brown. Antenna variegated of brown to dark brown, first 3 antennomeres paler, antennomeres 8–10 darker ( Figs. 21 View FIGURES 17 – 21 , 65 View FIGURES 61 – 65 ). Pygidium of male rufous or reddish brown and black, female reddish brown and black or brown and black. Ventral region dark brown to black. Front and middle femur and tibia pale brown or brown; hind femur brown and black or 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 ( Fig. 21 View FIGURES 17 – 21 ). Elytra strongly variegated, brown, yellowish gray, black and white, sometimes without black setae; interstria 3 at base and submedian region with short dense strip of white setae ( Fig. 21 View FIGURES 17 – 21 ). Pygidium dense; in male, white and yellowish gray setae, sparse setae on two basal, four lateral, one apical small areas and on median region with a larger sparse area ( Fig. 46 View FIGURES 44 – 46 ); in female, white, yellowish gray and brown setae, sparse setae on two lateral areas and on rectangular conspicuous area extending from basal to submedian region ( Fig. 52 View FIGURES 47 – 52 ). Ventral region brown, yellowish gray and white ( Fig. 65 View FIGURES 61 – 65 ).

Head. Ocular sinus 0.2 mm; ocular index 4.7–6.4; length of eyes in frontal view behind sinus 0.06–0.08 mm ( Fig. 34 View FIGURES 31 – 34 ). Antenna serrate from antennomere 4-10 in male and from 5-10 in female. Frons with frontal carina ( Fig. 34 View FIGURES 31 – 34 ).

Prothorax. Pronotum with median gibbosity strongly elevated, divided by longitudinal and transversal sulcus ( Fig. 65 View FIGURES 61 – 65 ); lateral gibbosity moderately elevated; basal lobe without depression and slightly emarginated ( Fig. 21 View FIGURES 17 – 21 ).

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. 78 View FIGURES 77 – 78 ) on external ventral margin with toothed carina; without denticles above of external ventral margin; pecten with 12–14 teeth. Hind tibia ( Fig. 78 View FIGURES 77 – 78 ) moderately emarginated beside mucro; lateral coronal denticles present or absent.

Abdomen. Pygidium oval, subequal in male ( Fig. 46 View FIGURES 44 – 46 ) as long as wide in female ( Fig. 52 View FIGURES 47 – 52 ), at median basal region with moderately impressed punctures.

Male genitalia. Median lobe with ventral valve wider than long, lateral margin straight on subapical region ( Fig. 90 View FIGURES 85 – 90 ), basal margin strongly emarginated. Internal sac, lateral apex with short tuft of setae, hinge sclerite curved at apex, short, extending over 1/3 of subapical region; subapical region with dense homogeneously distributed spicules; median region with sparse spicules, dense denticles and smooth sclerite, suboval with stems oriented forward, shorter than the central region ( Fig. 90 View FIGURES 85 – 90 ); submedian region with sparse spicules; basal region without denticles and spines. Tegmen ( Fig. 102 View FIGURES 100 – 102 ), lateral lobes separated by emargination about 0.9 times length of lateral lobes; internal margin near end of emargination curved, forming a “U”; expanded at apex, about 2.5 times the smallest width on median region; without membranous projection at apex.

Distribution. Neotropical region: Mexico (Nayarit, Jalisco, Oaxaca, Yucatán), Guatemala (Escuintla), Honduras (Olancho), Costa Rica (Guanacaste), Panama, Venezuela (Aragua).

Host plants (Tables I–II). Papilionoideae : Lonchocarpus sp., L. costaricensis (Donn. Sm.) Pittier , L. longistylus Pittier , L. minimiflorus Donn. Sm. , L. nitidus (Vogel) Benth. , L. parviflorus Benth. , L. rugosus Benth.

TABLE I. Ctenocolum groups/species and host plants. New record for the species (NR), New record for the genus (*).

Ctenocolum groups Insect Plants

Group podagricus C. aquilus sp. nov. Lonchocarpus muehlbergianus 7

C. biolleyi L. eriocarinalis 234 C. colburni L. heptaphyllus 5

L. purpureus 5

L. velutinus 4

C. martiale L. constrictus 5

L. eriocarinalis 5 L. sericeus 5

C. milelo sp. nov. L. guillemineanus (*) L. muehlbergianus C. podagricus Bauhinia glabra (NR, *) Lonchocarpus sp. L. costaricensis 234 L. heptaphyllus 5 L. hondurensis 5

L. margaritensis 5 L. minimiflorus 23 L. nitidus 45

L. parviflorus 4