Serratitibia loreto 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 : 96-97

76. Serratitibia loreto Gordon and Canepari , new species

Description. Male holotype. Length 1.6 mm, width 1.3 mm; body round, slightly elongate, convex. Dorsal surface shiny, lacking alutaceous sculpture. Color yellow; pronotum with black, mediobasal macula extended slightly more than 1/2 distance to apical pronotal margin, apex weakly emarginate with yellow; elytron black with 4 small, yellow spots, without discal spot ( Fig. 429 ); prosternum brownish yellow, meso–, metaventrites brown; abdomen yellow. Head punctures small, separated by less than diameter, each puncture as large as 2 eye facets; pronotal punctures smaller than on head, separated by less than 3 times diameter; elytral punctures larger than pronotal punctures, dense, separated by diameter or less. Clypeus weakly emarginate apically, nearly truncate, lateral angle abruptly rounded. Eye canthus about 6 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal angle slightly rounded, anterior angle abruptly rounded, lateral margin weakly rounded, basal margin without bordering line. Epipleuron narrow, grooved, deeply emarginate for reception of femoral apices. Protibial flange wider than remainder of protibia, outer margin arcuate with about 3 small, median teeth, sponda extended beyond protibial border. Carinae on prosternal process narrowly separated at apex, nearly parallel, joined at base of process. Metaventrite without setal tuft. Basal abdominal ventrite without median setal tuft. Abdomen without primary pores laterally between ventrites 4–5; postcoxal line on basal abdominal ventrite arcuate throughout, apex extended forward. Abdominal ventrites with short, sparse pubescence, punctures on basal 2 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 nearly truncate, with small tubercle bearing tuft of setae posterior to apical border on each side of median depression; 6th ventrite short, narrow, weakly depressed in apical 1/2, depression glabrous, without median tubercle, apical margin shallowly emarginate, angle on each side of emargination abruptly rounded, bearing small tuft of dense setae. Apical tergite short, narrow, apex weakly arcuate, surface densely, finely punctured. Genitalia with basal lobe shorter than paramere, wide at base, evenly tapered from base to apex, apex obliquely rounded; paramere Unm type, slightly widened apically, apex rounded ( Fig. 430, 431 ); sipho robust, wide, curved in basal 1/2, basal capsule with inner arm long, slender, rectangular, apically truncate, outer arm slender, slightly longer than inner arm, with accessory piece, basal border deeply emarginate ( Fig. 432, 433 ).

Female. Unknown.

Variation. Unknown.

Type material. Holotype male; Peru, Loreto, Puerto Almendra , 100m, 14-IX-2006, leg. R. Westerduijn, secondary forest Arboretum ( MKRB).

Other specimens. 2. Ecuador. “Ecuador”; Orellana, Payamino Research Station, 300m Tropical Rainforest , 30-vii-12.viii.2007, coll. CDPT Gillett, BMNH (E) 2007-65 ( BMNH) .

Remarks. Lack of a discal spot on each elytron and small size distinguish this species from all others except the Brazilian species S. karen (see remarks under that species). Additionally the elytral punctation is extremely dense, punctures separated by no more than a puncture diameter.

Etymology. Named for the Department of Loreto in which the type was found, name used as a noun in apposition.

Figures

Figures 429–442. 429–433) Serratitibia loreto. 429) Habitus. 430) Phallobase ventral. 431) Phallobase lateral. 432) Enlarged siphonal apex. 433) Sipho. 434–438) Serratitibia karen. 434) Habitus. 435) Phallobase ventral. 436) Phallobase lateral. 437) Enlarged siphonal apex. 438) Sipho. 439–442) Serratitibia betty. 439) Habitus. 440) Phallobase ventral. 441) Phallobase lateral. 442) Sipho (lacking apex).