Serratitibia martha 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 : 55-56

31. Serratitibia martha Gordon and Canepari , new species

Description. Male. Length 2.7 mm, width 2.3 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with wide, black basomedial macula extended 3/4 distance to anterior pronotal margin, apex of macula truncate; elytron black with 5 yellow spots arranged in rows of 2 each plus apical spot, mediolateral spot round, apical spot short, transversely rectangular, apical margin slightly emarginate ( Fig. 221 ); venter of head, prosternum, meso–, metaventrites dark brown; abdomen yellowish brown. Head punctures small, separated by less than diameter, each puncture as large as 2 eye facets; pronotal punctures equal in size to head punctures, separated by diameter or less; elytral punctures larger than on pronotum, separated by about diameter; metaventral punctures larger than on elytra, separated by less than diameter 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 straight, basal margin without trace of bordering line. Epipleuron narrow, deeply grooved, deeply emarginate for reception of femoral apices. Protibial flange as wide as remainder of protibia, outer margin arcuate, with about 8 small teeth throughout, sponda extended beyond protibial border. Carinae on prosternal process widely separated at apex, convergent, joined at basal 1/4 of prosternum, connected to base by short stem. 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, rounded along margin, apex extended forward. Abdominal ventrites 1–4 with short, sparse pubescence, punctures on basal 3 ventrites large medially, separated by diameter or less, 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 weakly emarginate, surface densely, finely punctured. Genitalia with basal lobe 5/6 length of paramere, sides convergent, slightly “pinched “ medially, apex truncate; paramere Unm type, wide, moderately widened apically, apex truncate ( Fig. 222 ); sipho robust, curved in basal 2/3, basal capsule with inner arm short, wide, apex rounded, outer arm as long as inner arm, wide, with accessory piece, basal border broadly, shallowly emarginate ( Fig. 223, 224 ).

Female. Similar to male except head with vertex black, basomedial macula on pronotum large, extended to anterior pronotal margin, elytron without humeral spot. Genitalia with spermathecal capsule long, slender, curved medially, cornu slightly enlarged; bursal cap rounded, with 3 arms, inner arm faint, apical strut long, apex spatulate in lateral view ( Fig. 225 ).

Variation. Length 2.3–2.8 mm, width 1.8–2.3 mm. Basomedial pronotal macula with apex sometimes feebly emarginate with yellow, elytral spots vary slightly in size, apical spot as described or with apical margin straight, 1 specimen with scutellar, discal, and apical spot irregularly connected.

Type material. Holotype male; Bolivia, St. Antonio ( ZMHB) . Paratypes; 7, 2, same data as holotype ( ZMHB) ; 3, Bolivia, Coroico ( CAS) ; 1, Bolivia, La Paz, N. Yungus, Caranavi, Santa Ana Exp. Sta., IV-2- 76, C. R. Ward ( USNM) ; 1, Bolivia, Mapiri ( ZMHB) .

Remarks. This species is distinguished by a combination of male 6th abdominal ventrite with median tubercle, male pronotum with basomedial macula apically entire or only feebly emarginate with yellow, and paramere of genitalia moderately elongate.

Figures

Figures 221–234. 221–225) Serratitibia martha. 221) Habitus. 222) Phallobase ventral. 223) Enlarged siphonal apex. 224) Sipho. 225) Female genitalia. 226–230) Serratitibia debra. 226) Habitus. 227) Phallobase ventral. 228) Phallobase lateral. 229) Enlarged siphonal apex. 230) Sipho. 231–234) Serratitibia amanda. 231) Habitus. 232) Phallobase lateral. 233) Phallobase ventral. 234) Female genitalia.