Serratitibia brethesi (Korschefsky) Gordon, Robert D., Canepari, Claudio & Hanley, Guy A., 2013

Gordon, Robert D., Canepari, Claudio & Hanley, Guy A., 2013, South American Coccinellidae (Coleoptera), Part XII: New name for Cyra Mulsant, review of Brachiacanthini genera, and systematic revision of Cleothera Mulsant, Hinda Mulsant and Serratitibia Gordon and Canepari, new genus, Insecta Mundi 2013 (278), pp. 1-150 : 78-79

55. Serratitibia brethesi (Korschefsky) , new combination

Brachyacantha lengi Brèthes, 1925a: 202 (not B. lengi Nunenmacher 1912: 149 ).

Brachyacantha brethesi Korschefsky, 1931: 202 (replacement name for B. lengi Brèthes ); Blackwelder 1945: 449.

Description. Female holotype. Length 3.3 mm, width 2.7 mm; body oval, convex. Dorsal surface smooth, shiny, except head slightly alutaceous. Color black; pronotum with lateral 1/4 yellow; elytron black with 4 yellow spots, sutural spot round, discal spot irregularly oval, lateral spot irregularly triangular, narrowest toward lateral border, apical spot transversely oval ( Fig. 341 ); ventral surface with legs dark reddish brown, abdomen paler reddish brown except median area of basal 3 ventrites dark brown. Head punctures large, separated by diameter or less, each puncture as large as 3 eye facets; pronotal punctures much smaller than head punctures, separated by diameter or less; elytral punctures as large as on pronotum, separated by less than 2 times diameter; punctures on metaventrite large, separated by diameter or less medially, becoming larger laterally. Clypeus weakly emarginate apically, nearly truncate, lateral angle rounded. Eye canthus about 5 eye facets long, angled forward, apically rounded, brown. Pronotum narrowed from base to apex, lateral margin slightly rounded in apical 1/2, basal angle abruptly rounded, anterior angle evenly rounded, basal margin with trace of bordering line. Epipleuron narrow, weakly grooved, deeply emarginate for reception of femoral apices. Protibia with flange narrower than remainder of tibia, arcuate, outer margin with about 8 small teeth in basal 3/4, median tooth large, sponda raised above protibial border ( Fig. 342 ). Abdomen with primary pores laterally between ventrites 4–5 small, extended under apical 1/4 of ventrite 4; postcoxal line on basal abdominal ventrite rounded throughout, extended anteriorly; ventrites with sparse, long pubescence, basal 3 ventrites with coarse punctures separated by diameter or less, ventrites 3–4 with fine, dense punctures. Genitalia with spermathecal capsule elongate, slender, curved medially, cornu enlarged; bursal cap rounded, with 2 arms, apical strut long, slender, apex flattened, hooked ( Fig. 343 ).

Male. Unknown.

Variation. Unknown.

Type locality. Corcovado, Rio de Janeiro, Brazil.

Type depository. BMNH (holotype).

Geographical distribution. Brazil.

Type Material. Female holotype; Type (orange bordered disc/type (handwritten)/Corcovado, Rio de Janeiro, G. E. Bryant. 10. V.1912 /G. Bryant Coll. 1919–147/Brachyacantha Lengi Brethes (handwritten)/ HOLOTYPE Brachyacantha lengi Brethes, 1921 , det. R.G. Booth, 1995 ( BMNH).

Remarks. This species is similar to S. humerata , although smaller. They share the unusual character of a dark protibia, something rarely observed in this genus. In addition, S. brethesi has large head punctures, each puncture about the size of 3 eye facets, very small pronotal and elytral punctures, and the lateral spot on each elytron triangular. Brèthes (1925a) specifically stated that he had one type specimen.

Figures

Figures 341–347. 341–343) Serratitibia brethesi. 341) Habitus. 342) Proleg. 343) Female genitalia. 344–345) Serratitibia kathy. 344) Habitus. 345) Female genitalia. 346–347) Serratitibia irene. 346) Habitus. 347) Female genitalia.