Serratitibia mildred 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 : 71-72

48. Serratitibia mildred Gordon and Canepari , new species

Description. Male holotype. Length 3.0 mm, width 2.4 mm; body oval, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum yellow except basomedial macula short, outer angle with oblique anterior projection extended to apical 2/3 of pronotum, apex of projection curved inward and hooked posteriorly at apex; elytron yellow with sutural margin and 5 maculae brown, sutural vitta slightly widened medially, humeral macula long, wide, irregular, scutellar macula long, slen- der, triangular, narrowly connected to outer arm of apical spot at apical declivity, apical spot u-shaped, occupying most of declivity, posterolateral spot near lateral margin on apical declivity, small, oval ( Fig. 310 ); venter of head, prosternum, meso–, metaventrites reddish brown; abdomen reddish brown except median portion of ventrites 1–3 brown. Head punctures small, separated by diameter or less, each puncture as large as 1 eye facet; pronotal punctures as large as head punctures, separated by diameter or less; elytral punctures as large as 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, angled forward, apex acute, 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 narrow, deeply grooved, deeply emarginate for reception of femoral apices. Protibial flange as wide as remainder of protibia, outer margin feebly arcuate, with about 8 small teeth throughout, sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, parallel, joined at basal 1/4 of prosternum, connected to base by short stem. Metaventrite without setal tuft. Basal abdominal ventrite with median setal tuft. Abdomen with primary pores small, extended under apical 1/3 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 small medially, separated by diameter or less, equal in size but becoming 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, with median tubercle, apical margin shallowly emarginate, angle on each side of emargination bearing tuft of setae. Apical tergite short, narrow, apex feebly emarginate medially, surface densely, finely punctured. Genitalia with basal lobe 3/4 length of paramere, wide, sides nearly straight, apex obliquely truncate; paramere Unm type, wide, widened apically, apex truncate ( Fig. 311, 312 ); sipho robust, strongly curved in basal 2/3, basal capsule with inner arm short, slender, narrowed medially, apex rounded, outer arm 3 times as long as inner arm, slender, with accessory piece, basal border deeply emarginate ( Fig. 313, 314 ).

Female. Unknown.

Variation. Length 2.7–3.0 mm, width 2.2–2.4 mm. Elytral spots vary from that described for the holotype to having maculae broadly fused, leaving elytral surface mostly brown with yellow spots, yellow scutellar spot curved, yellow spot at apical declivity small, triangular, and humeral, mediolateral, and apical spot connected along lateral margin of elytron.

Type material. Holotype male; Argentina, Misiones, No 578.61, Montevideo So Amer Paras Lab, Date XI.25.41, Parker ( USNM) . Paratypes; 2, Brazil, Sao Paulo, No 666.10 E Montevideo So Amer Paras Lab, Date Jan.14.42, Parker ( USNM) .

Remarks. The dorsal color pattern of S. mildred is unique within Serratitibia . It is most similar to that of Cyra noticollis (Mulsant) for which it could be mistaken if generic characters are not examined.

Figures

Figures 301–314. 301–306) Serratitibia linda. 301) Habitus. 302) Proleg. 303) Phallobase ventral. 304) Phallobase lateral. 305) Enlarged siphonal apex. 306) Sipho. 307–309) Serratitibia evelyn. 307) Habitus. 308) Phallobase ventral). 309) Phallobase lateral. 310–314) Serratitibia mildred. 310) Habitus. 311) Phallobase ventral. 312) Phallobase lateral. 313) Enlarged siphonal apex. 314) Sipho.