Serratitibia helen 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 : 92

71. Serratitibia helen Gordon and Canepari , new species

Description. Male holotype. Length 2.4 mm, width 2.0 mm; body rounded, convex. Dorsal surface with head faintly alutaceous, shiny, pronotum and elytron without alutaceous sculpture, shiny. Color yellow; pronotum with black, basomedial macula wide basally, extended anteriorly 2/3 distance to pronotal apex at middle, apex shallowly emarginate with yellow; elytron black with 5 small, yellow spots arranged in transverse rows of two each plus one at apex, apical spot small, transversely oval ( Fig. 402 ); prosternum, meso–, metaventrites dark brown; abdomen brownish yellow. Head punctures small, separated by less than diameter, each puncture as large as 2 eye facets; pronotal punctures as large as head punctures, separated by less than 2 times diameter, elytral punctures larger than pronotal punctures, separated by less than 3 times diameter. Clypeus weakly emarginate apically, nearly truncate, lateral margin rounded, angle abruptly rounded. Eye canthus about 6 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal angle broadly rounded, anterior angle abruptly rounded, lateral margin straight, basal margin without bordering line. Epipleuron narrow, weakly grooved, deeply emarginate for reception of femoral apices. Protibial flange slightly narrower than remainder of protibia, outer margin arcuate with about 8 teeth of varying sizes, sponda extended beyond protibial border. Carinae on prosternal process widely separated at apex, gradually tapered apically, joined before prosternal base, connected to base by short stem. Metaventrite with setal tuft. Basal abdominal ventrite with median setal tuft. Abdomen without primary pores laterally between ventrites 4–5; postcoxal line on basal abdominal ventrite straight in basal 1/3, flattened along apical ventral border, rounded forward. Abdominal ventrites with short, sparse pubescence, punctures on basal 3 ventrites separated by about diameter medially, becoming smaller and dense laterally, ventrites 3–5 densely punctured throughout; 5th ventrite depressed medially in apical 1/2, apical margin deeply emarginate medially, lateral angle of emargination pronounced with small tubercle bearing tuft of dense setae; 6th ventrite short, narrow, weakly depressed in apical 1/2, depression glabrous, with median tubercle, apical margin widely, shallowly emarginate, angle on each side of emargination abruptly rounded, bearing small tuft of dense setae. Apical tergite short, narrow, apex truncate, surface densely, finely punctured. Genitalia with basal lobe shorter than paramere, tapered to narrowly rounded apex; paramere Unm type, extremely wide, short, apex rounded ( Fig. 403, 404 ); sipho robust, curved in basal 1/2, with visible lateral alae posterior to apex, basal capsule with inner arm short, wide, rectangular, apex truncate, outer arm 2 times as long as inner arm, with accessory piece, basal border weakly emarginate ( Fig. 405, 406 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; “ BOLIVIA ” (no further data), Colección J.E. Barriga, Stgo.( Santiago ), Chile, 8329. ( JEBC) . Paratypes; 2, Bolivia, Prov. La Paz, Cumbre Alto Beni, 7-15-iv.2004, vicinity of Caranavi , 1685 m, 15 o 40’19"S, 67 o 29’35"W. malaise traps, leg. S.D. Gaimari and M. Hauser ( CSCA) .

Remarks. Known from 3 male specimens, S. helen has the typical dorsal color pattern of most Serratitibia species. Male specimens are distinguished by a short, very wide, paddle shaped paramere, and presence of median setal tufts on both the metaventrite and basal abdominal ventrite.

Figures

Figures 396–410. 396–401) Serratitibia ruby. 396) Habitus. 397) Phallobase ventral. 398) Phallobase lateral. 399) Enlarged siphonal apex. 400) Sipho. 401) Female genitalia. 402–406) Serratitibia helen. 402) Habitus. 403) Phallobase ventral. 404) Phallobase lateral. 405) Enlarged siphonal apex. 406) Sipho. 407–410) Serratitibia susan. 407) Habitus. 408) Phallobase ventral and lateral. 409) Sipho and enlarged siphonal apex. 410) Female genitalia.