Conicobruchus cicatricosus ( Fåhraeus, 1839 ), Fahraeus, 1839

Le Ru, Bruno P., Delobel, Alex, György, Zoltán, Genson, Gwenaëlle & Kergoat, Gael J., 2014, Taxonomy, host-plant associations and phylogeny of African Crotalaria - feeding seed beetles (Coleoptera, Chrysomelidae, Bruchinae): the Conicobruchus strangulatus (Fåhraeus) species group, Zootaxa 3895 (2), pp. 238-256 : 244-245

publication ID

https://doi.org/ 10.11646/zootaxa.3895.2.6

publication LSID

lsid:zoobank.org:pub:ACF6C45F-E37F-4483-9001-17634FCE5990

DOI

https://doi.org/10.5281/zenodo.5668831

persistent identifier

https://treatment.plazi.org/id/6C398325-2779-FFAA-FF04-FBFEFF19FDCA

treatment provided by

Plazi

scientific name

Conicobruchus cicatricosus ( Fåhraeus, 1839 )
status

 

Conicobruchus cicatricosus ( Fåhraeus, 1839)

Bruchus cicatricosus Fåhraeus, 1839:39 .

Bruchus cicatricosus pallidioripennis Pic, 1941:12 , syn. nov. Conicobruchus cicatricosus: Kergoat et al., 2011:756

Material examined. Kenya: 2♂, Josa Wundanyi, 03° 25.863S 31° 21.314E, 1378m, 13.iv.2012, ex Crotalaria laburnifolia tenuicarpa [1♂ 0 2212, specimen GK448 used for DNA extraction] (B. Le Ru) [ CBGP]. Tanzania: 1♂, Kidevu, 03° 09.402S 36° 41.058E, 1818m, 25.ii.2008, ex Crotalaria sp. [specimen GK195 used for DNA extraction] (B. Le Ru) [ CBGP]. Republic of South Africa: 1♂, 1♀, Port Elisabeth [1♂ 04908]; 1♀, East London, ix.1915 (R. Ellenberger) [ MNHN]. Tanzania: 1♂, xii 7 n fv, ex Crotalaria sp. [1♂ 00508] (C. Conrads) [ MNHN]. Zimbabwe: 1♂, 1♀, Masvingo, 22.i.1998 [1♂ 19007, specimen GK171 used for DNA extraction] (M. Halada) [ OÖLM].

Body entirely black, or black with elytra and legs more or less light reddish brown ( Fig. 1 View FIGURE 1 ). The black form corresponds to variety A of Fåhraeus, the paler form to his variety B, as well as to Pic’s variety pallidioripennis. These are mere colour forms of the same species.

Other important morphological traits are as follows: pronotum 1.2 times wider at base than long, its sides straight basally, strongly convergent anteriorly, then constricted into a distinct neck; lack of white hair spots on pronotum (setation uniformly yellowish); elytral striae thin and narrow, interstriae alternating greyish setose spots with bare areas surrounding large ocellate punctures, elytral disc thus showing a checkered pattern, less visible laterally and posteriorly. Male antennae strongly pectinate.

Male genitalia. Median lobe ( Fig. 3 View FIGURES 3 – 4 ) of moderate length, stout (maximum width excluding basal hood / total length = 0.20), slightly widened apically, basal hood moderately widened, concave posteriorly; ventral valve large, subtriangular, bearing apically numerous sensillae and basally two lateral groups of 6 to 9 setae; no hinge sclerite; internal sac densely lined anteriorly with minute spinules and ctenoid scales, followed by strands of hyaline spicules and tubercles, progressively transformed laterally into a pair of groups of very dense setae; posteriorly numerous strong teeth, associated or not in two to four dented sticks or masses; apical ampoule devoid of any ornamentation, gonopore not sclerotized; basal strut ( Fig. 4 View FIGURES 3 – 4 ) narrow, without keel; lateral lobes cleft to about 90% their length; apex modified, with two lips, the dorsal one bearing 15-20 long setae, the ventral one densely lined with long setation.

Biology. The type series was reared from Crotalaria volubilis seeds in ‘Caffraria’ (now Republic of South Africa). The name C. volubilis Thunberg is not valid ( ILDIS 2014; TROPICOS 2014), so that the actual host remains unknown (but C. capensis according to De Luca, 1965). Examined material was reared from pods of Crotalaria laburnifolia subsp. tenuicarpa in Kenya and of Crotalaria sp. in Tanzania.

Distribution. Kenya, Republic of South Africa, Tanzania and Zimbabwe.

Discussion. Conicobruchus cicatricosus can be distinguished from other members of the group by its elytral setation ( Fig. 1 View FIGURE 1 ), in which bare spots alternate with densely setose patches (in other species elytra are uniformly covered with setae). Contrary to C. decoratus and C. rubricollis , the male genitalia of C. cicatricosus includes large sclerites. However, in contrast with C. atrosuturalis , C. flabellicornis and C. strangulatus , proximal sclerites are absent.

DNA

Department of Natural Resources, Environment, The Arts and Sport

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

SubFamily

Bruchinae

Genus

Conicobruchus

Loc

Conicobruchus cicatricosus ( Fåhraeus, 1839 )

Le Ru, Bruno P., Delobel, Alex, György, Zoltán, Genson, Gwenaëlle & Kergoat, Gael J. 2014
2014
Loc

Bruchus cicatricosus pallidioripennis

Kergoat 2011: 756
Pic 1941: 12
1941
Loc

Bruchus cicatricosus Fåhraeus, 1839 :39

Fahraeus 1839: 39
1839
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