Serratitibia louise 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 : 109

90. Serratitibia louise Gordon and Canepari , new species

Description. Male holotype. Length 2.6 mm, width 2.0 mm; body oval, convex. Dorsal surface slightly alutaceous, shiny. Color yellow; pronotum with narrow, black basomedial band, apical margin of band broadly emarginate with short, median projection, band narrowly connected at outer angles with triangular black spots on disc; elytron narrowly bordered with black on basal, sutural, and apical margins, with 4 black maculae, humeral macula connected to base of elytron, irregularly extended posteriorly and connected to apical macula, discal macula elongate oval, curved apically to join suture, forming J-shaped macula, apical macula J-shaped, connected to humeral macula, lateral macula on apical declivity short, irregularly rectangular ( Fig. 504 ); venter of head, prosternum, meso–, metaventrites black; abdomen reddish yellow except basal 3 ventrites medially brown. Head punctures small, separated by diameter or less, each puncture as large as 2 eye facets; pronotal punctures as large as head punctures, separated by diameter or less; elytral punctures larger than on pronotum, separated by 1–3 times diameter; metaventral punctures much larger than on elytra, separated by 1–2 times diameter medially, larger laterally. Clypeus weakly emarginate apically, lateral angle abruptly rounded. Eye canthus about 5 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. Protibia with outer margin slightly flanged, flange smooth, without serrations, 1/6 as wide as remainder of protibia, 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 median setal tuft. Basal abdominal ventrite with median setal tuft. Abdomen with small primary pores 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, without median tubercle, apical margin shallowly emarginate, angle on each side of emargination bearing tuft of setae. Apical tergite short, narrow, apex broadly rounded, surface densely, finely punctured. Genitalia with basal lobe nearly as long as paramere, wide, sides weakly convergent, apex obliquely rounded; paramere Unm type, wide, widened apically, apex truncate ( Fig. 505, 506 ); sipho robust, strongly curved in basal 2/3, basal capsule with inner arm long, slender, narrowed medially, apex truncate, outer arm longer than inner arm, slender, with accessory piece, basal border broadly, deeply emarginate ( Fig. 507, 508 ).

Female. Similar to male except head with clypeus, apex of frons, and frons along inner margin of eye black. Genitalia with spermathecal capsule wide, abruptly bent medially, cornu slightly enlarged; bursal cap broadly triangular, with 3 arms, inner arm faint, apical strut wide, strongly spatulate in apical 1/2, straight, extended from round, sclerotized base ( Fig. 509 ).

Variation. Length 2.4–2.6 mm, width 1.8–2.6 mm. Humeral maculae on elytron may be strongly connected, or nearly discrete.

Type material. Holotype male; ( Brazil), V. Monteverde, M. Gerais (Minas Gerais), 8.IX.1963, Halik, 22768., BRASIL Halik 1966 Collection ( USNM) . Paratypes; 4, 2, same data as holotype ( USNM) ; 1, Campos Jordao , Sao Paulo, 10.IX.1964, Halik, 25157, BRASIL, Halik 1966 Collection ( USNM) ; 1, Sa. Bocaina- 1500m, S.J. Barreiro-SP Brasil, 4.XI.1965, F.M. Oliveira leg. ( MZSP) .

Remarks. This distinctively marked species is superficially similar in appearance to a few other species of Brachiacanthini , particularly Cyra noticollis (Mulsant) . The only somewhat similar appearing species of Serratitibia is S. uncinata , which has a macula on the apical declivity of the elytron that is slightly “Jshaped.”

Figures

Figures 492–509. 492–497) Serratitibia aliciae. 492) Habitus. 493) Proleg. 494) Phallobase ventral. 495) Phallobase lateral. 496) Enlarged siphonal apex. 497) Sipho. 498–503) Serratitibia andrea. 498) Habitus. 499) Phallobase ventral. 500) Phallobase lateral. 501) Enlarged siphonal apex. 502) Sipho. 503) Female genitalia. 504–509) Serratitibia louise. 504) Habitus. 505) Phallobase ventral. 506) Phallobase lateral. 507) Enlarged siphonal apex. 508) Sipho. 509) Female genitalia.