Serratitibia regularis (Erichson) Gordon & Canepari & Hanley, 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 : 25-26

1. Serratitibia regularis (Erichson) , new combination

Hinda regularis Erichson, 1847: 183 ; Mulsant 1853: 292; Weise 1899: 269; Weise 1902: 174; Korschefsky 1931: 177; Blackwelder 1945: 446; Almeida and Milléo 2000: 78 ; Almeida et al. 2007: 67 .

Description. Male lectotype. Length 2.5 mm, width 2.1 mm; body rounded, convex. Color yellow; pronotum with black, basomedial macula wide basally, extended anteriorly at middle, apex deeply emarginate with yellow; elytron black with 7 small, yellow spots ( Fig 60 ). Head punctures small, separated by less than diameter, each puncture slightly larger than an eye facet; pronotal punctures larger than head punctures, separated by less than 3 times diameter; elytral punctures equal in size to pronotal punctures, separated by 1–3 times diameter. Clypeus weakly emarginate apically, lateral angle abruptly rounded. Eye canthus short, about 4 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal angle broadly rounded, anterior angle abruptly rounded, basal margin without bordering line. Epipleuron wide, nearly flat, slightly grooved, deeply emarginate for reception of femoral apices. Protibia widely flanged, flange rounded, outer margin serrate in lateral 1/2 with about 8 small teeth, inner 1/2 of flange without teeth, sponda not extended beyond protibial border ( Fig. 61 ). Carinae on prosternal process wide at apex, evenly narrowed basally, acutely joined at base with short stem extended to basal margin of prosternum. Metaventrite without setal tuft. Basal abdominal ventrite with median setal tuft. Abdomen with primary pores laterally between ventrites 4–5 small, nearly invisible; postcoxal line on basal abdominal ventrite straight in basal 1/3, arcuately extended along apical margin of ventrite medially, then broadly arcuate forward, median 1/3 of ventrite with large, sparse punctures, surface with short, sparse pubescence and dense, distinct punctures elsewhere; ventrites 2–4 sparsely pubescent, distinctly, densely punctured throughout; 5th ventrite depressed medially in apical 1/ 2, apical margin deeply emarginate medially, lateral angle of depression pronounced with small tubercle bearing tuft of dense setae, surface densely punctate; 6th ventrite short, narrow, deeply depressed in apical 3/4, apical margin deeply emarginate, angle on each side of depression pronounced, abrupt, with setal tuft. Apical tergite large, lateral margin widely rounded, pronounced, apical margin slightly emarginate, surface finely, sparsely punctured. Genitalia with basal lobe as long as paramere, weakly narrowed from base to wide apex, apex nearly truncate; paramere Unm type, very wide, apex rounded ( Fig. 62, 63 ); sipho robust, strongly curved in basal 1/2, apical 1/2 lost, basal capsule large, inner arm short, slender, dorsally truncate, outer arm wide, longer than inner arm, with accessory piece, basal border deeply emarginate ( Fig. 64 ).

Female. Similar to male except head yellowish brown, pronotum dark brown except anterolateral angle with large yellow spot extended nearly to posterolateral angle. Genitalia with spermatheca long, slender, curved, cornu slightly enlarged, inner margin posterior to cornu with short, apically rounded projection; bursal cap with 2 feebly sclerotized arms, apical strut narrow at base, abruptly widened to large, strongly obovate apex ( Fig. 65 ).

Variation. Length 2.5–2.8 mm, width 2.1–2.3 mm.

Type locality. Peru.

Type depository. ZMHB (lectotype designated by Almeida et al. 2007).

Geographical distribution. Peru.

Specimens examined. 2. Peru. “Peru;” Callanga. ( ZMHB).

Remarks. This species is distinguished from all congeners except S. kathy by the presence of 7 yellow spots on each elytron in both sexes (see remarks under S. kathy ). Also, female genitalia with a median internal projection of the spermatheca are thus far unique. Other Serratitibia species have 5 or fewer spots and mostly unmodified spermathecae. Spot arrangement in S. regularis and S. kathy differs from all other recognized species because there are 3 rows of 2 spots each anterior to the apical spot ( Fig. 344 ).

Almeida and Milléo (2000) included S. regularis in their review of Hinda , and it was again discussed by Almeida et al. (2007).

Figures

Figures 60–77. 60–65) Serratitibia regularis. 60) Habitus. 61) Protibia. 62) Phallobase, ventral. 63) Phallobase, lateral. 64) Sipho. 65) Female genitalia, tube connecting spermathecal capsule to bursa missing. 66–72) Serratitibia donna. 66) Habitus. 67) Phallobase ventral. 68) Phallobase, lateral. 69) Enlarged siphonal apex. 70) Sipho. 71) Male abdomen. 72) Female genitalia. 73–77) Serratitibia lividipes. 73) Habitus. 74) Phallobase, ventral. 75) Phallobase lateral. 76) Enlarged siphal apex. 77) Sipho.

Figures 341–347. 341–343) Serratitibia brethesi. 341) Habitus. 342) Proleg. 343) Female genitalia. 344–345) Serratitibia kathy. 344) Habitus. 345) Female genitalia. 346–347) Serratitibia irene. 346) Habitus. 347) Female genitalia.