Serratitibia virginia Gordon and Canepari, 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 : 46

21. Serratitibia virginia Gordon and Canepari , new species

Description. Male holotype. Length 2.6 mm, width 1.8 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with narrow, brown basomedial macula with anterior border incised by 2 triangular, dull yellow maculae; elytron with suture narrowly brown, brown border abruptly widened medially, 1 large brown spot in apical 1/2 medially ( Fig. 168 ); venter of head, prosternum reddish yellow, meso–, metaventrites reddish brown; abdomen brownish yellow. Head punctures small, separated by less than diameter, each puncture as large as 1–2 eye facets; pronotal punctures equal in size to head punctures, separated by less than 2 times diameter; elytral punctures larger than on pronotum, separated by diameter or less; metaventral punctures larger than on elytra, separated by diameter or less medially, larger laterally. Clypeus weakly emarginate apically, lateral angle abruptly rounded. Eye canthus about 6 eye facets long, slightly angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal angle broadly rounded, anterior angle abruptly rounded, lateral margin rounded, basal margin without trace of bordering line. Epipleuron wide, deeply grooved, deeply emarginate for reception of femoral apices. Protibial flange as wide as remainder of protibia, outer margin arcuate, with about 6 small, widely spaced teeth from base to apex ( Fig. 169 ), sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, weakly convergent, joined at basal 1/4 of prosternum. Metaventrite without setal tuft. Basal abdominal ventrite without median setal tuft. Abdomen with primary pores laterally between ventrites 4–5 small, extended under apical 1/4 of ventrite 4; postcoxal line on basal abdominal ventrite angled to posterior ventrite margin, flattened along margin, apex extended forward. Abdominal ventrites 1–4 with short, sparse pubescence, punctures on basal 3 ventrites large, separated by less than 2 times diameter, becoming smaller and dense laterally, ventrites 3–5 densely punctured throughout; 5th ventrite depressed medially in apical 1/ 2, apical border weakly emarginate medially, lateral angle of emargination with small tubercle bearing tuft of dense setae; 6th ventrite narrow, deeply depressed medially, depression glabrous, bearing large median tubercle, apical margin shallowly emarginate, angle on each side of emargination bearing tuft of setae. Apical tergite short, narrow, apex truncate, surface densely, finely punctured. Genitalia with basal lobe 5/6 as long as paramere, narrow, sides convergent, apex obliquely rounded; paramere Unm type, wide, widened apically, apex rounded ( Fig. 170, 171 ); sipho robust, curved in basal 2/3, basal capsule with inner arm short, wide, apex rounded, outer arm longer than inner arm, wide, slightly widened apically, with accessory piece, basal border broadly, deeply emarginate ( Fig. 172, 173 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; Brazil, GO (Goias), Goiania , 26.I.1962, J. Bechyné col. ( DZUP).

Remarks. Serratitibia virginia has an elytral color pattern similar to that of S. fraudulenta , but the spots are brown and rounded rather than black and transverse, and S. virginia has a male pronotal pattern composed of a basomedial, brown macula apically incised with 2 dark yellow maculae, while that of S. fraudulenta has simply a large, black basomedial macula. Abdominal ventrite 6 in both species has a large, median tubercle.

Figures

Figures 155–173. 155–160) Serratitibia gaillardi. 155) Habitus. 156) Protibia. 157) Phallobase ventral. 158) Phallobase lateral. 159) Enlarged siphonal apex. 160) Sipho. 161–167) Serratitibia uncinata. 161) Habitus. 162) Protibia. 163) Phallobase ventral. 164) Phallobase lateral. 165) Enlarged siphonal apex. 166) Sipho. 167) Male abdomen. 168–173) Serratitibia virginia. 168) habitus. 169) Protibia. 170) Phallobase ventral. 171) Phallobase lateral. 172) Enlarged siphonal apex. 173) Sipho.