Brachiacantha egae (Crotch) Gordon, Robert D., Canepari, Claudio & Hanley, Guy A., 2014

Gordon, Robert D., Canepari, Claudio & Hanley, Guy A., 2014, South American Coccinellidae (Coleoptera), Part XVI: systematic revision of Brachiacantha Dejean (Coccinellinae: Hyperaspidini), Insecta Mundi 2014 (390), pp. 1-76 : 55-56

47. Brachiacantha egae (Crotch) , new combination

Hyperaspis egae Crotch, 1874: 223 : Korschefsky 1931: 188; Blackwelder 1945: 447; Gordon 1987: 28.

Description. Female holotype. Length 2.8 mm, width 2.4 mm; body round, slightly oval. Color brown except head yellow; pronotum dark brown with lateral 1/5 yellow, yellow macula wide apically, narrowed posteriorly, inner margin of macula sinuate; elytron with large, unevenly oval, yellow discal spot occupying most of elytron and 2 small, indistinct spots in anterior 1/2, 1 spot at base near scutellum, 1 spot on humeral callus ( Fig. 260 ); ventral surface light brown except prothoracic hypomeron and legs yellow; abdominal ventrites yellow. Head punctures small, separated by less than to twice a diameter, each puncture as large as 1 eye facet; pronotal punctures larger than on head, separated by less than to about twice a diameter; elytral punctures as large as on pronotum, separated by about a diameter. Clypeus feebly, broadly emarginate, nearly truncate apically, lateral angle abruptly rounded, surface nearly glabrous, with few sparse, long setae at apical margin. Eye canthus short, about 5 eye facets long, slightly angled forward, abruptly rounded apically, yellow. Pronotum narrowed from base to apex, sides straight, anterior angle broadly rounded, basal angle abruptly rounded, basal margin without bordering line. Epipleuron narrow, grooved, groove densely punctured, deeply emarginate for reception of femoral apices, outer margin slightly descending. Protibia with short, triangular tooth, narrow, emarginate between tooth and sponda; sponda shallow, small, extended beyond protibial margin ( Fig. 261 ). Carinae on prosternal process widely divergent apically, convergent, joined just before prosternal apex, single carina extended to apex. Abdomen with postcoxal line on basal abdominal ventrite angled to apical margin of ventrite, flattened along margin, then rounded forward at apex; ventrites 1–4 with sparse, short pubescence, ventrites 1–5 with coarse punctures in median 1/3, punctures becoming small, dense laterally; ventrite 5 broadly, weakly emarginate apically; ventrite 6 finely, densely punctured, apical margin rounded. Genitalia with spermathecal capsule long, wide, curved, thickened in basal 1/3, cornu slightly enlarged; bursal cap rounded with 2 outer arms; apical strut short, apical 1/3 flattened in lateral view ( Fig. 262 ).

Male. Unknown.

Variation. Unknown.

Type locality. Brazil, Ega.

Type depository. UMZC.

Geographical distribution. Brazil.

Specimens examined. l. Brazil. The holotype. ( UMZC).

Remarks. Brachiacantha egae is distinguished by the unusual elytral color pattern similar only to that of B. sally and B. regina .

The female holotype was the only specimen available for examination.

Figures

Figures 259–265. 259. Brachiacantha bilineata. 259) Habitus. 260–262. Brachiacantha egae. 260) Habitus. 261) Protibia. 262) Female genitalia. 263–264. Brachiacantha sicardi. 263) Habitus. 264) Female genitalia. 265. Brachiacantha steiner. 265) Habitus.