Hyperaspis rutai sp. nov.

urn:lsid:zoobank.org:act: A150DCAA-2BA8-408B-B04E-5FA996D9711E

Figs 10G–I, 13

Diagnosis

Hyperaspis rutai sp. nov. has antennae with 11 antennomeres, frontoclypeus with distinct lateral incision, tegmen with parameres long and broadly oval, and penis capsule with arms well developed which places this newly described species in the onerata species group as defined by Gordon & Canepari (2008). It can be easily distinguished from other species of this group by having a unique dorsal color pattern on each elytron consisting of three large yellow, unconnected maculae on a black background (Fig. 7G–H). Moreover, male genitalia are of typical form of Hyperaspis but the penis guide is short, barely extending beyond half-length of parameres. Female genitalia have the hind margin of proctiger coarsely serrate, and is very unique among all other species of Hyperaspis .

Etymology

This species is dedicated to the Polish entomologist and expert in Scirtidae systematics, collector of the type series, Rafał Ruta (University of Wrocław).

Material examined

Holotype

ECUADOR • ♂; “ Napo prov., Cosanga, Yanayacu, collecting along the road, 25 XI 2009, leg. R. Ruta”; MNHW.

Paratypes

ECUADOR • 2 ♂♂, 3 ♀♀; same collection data as for holotype; MNHW • 1 ♂, 1 ♀; same collection data as for holotype; MIZ • 1 ♀; “ Cosanga vic., Las Palmas Island, 2 XII 2009, leg. R. Ruta”; MNHW .

Description

BODY. Length 3.30 mm; TL/EW = 1.20; PL/PW = 0.45; EL/EW = 1.00. Body oval (Fig. 10G), strongly convex (Fig. 10H), winged; head yellow, pronotum black with three yellow spots: one longitudinal medially and two rounded on lateral sides as on Fig. 10I; elytra black with three large, yellow spots on each elytron (2+1): humeral spot elongate oval, extended posteriorly from humeral angle, discal spot elongate oval and apical spot oval; mouthparts, antennae, hypomera, legs except coxae, lateral sides of ventrites 1–5 and entire ventrite 6 yellow-brown, pro-, meso- and metasternum, coxae and central part of ventrites 1–5 infuscate, dark brown to black. Dorsum glabrous, with single size punctures. Punctures on pronotum and elytra less coarse than on head. Head with microreticulation between punctures.

HEAD. Head partially covered by pronotum; ventral antennal grooves shallow, straight. Eyes moderately convex, dorsally with inner orbits arcuate; ocular canthus absent; interocular distance about 0.50 × as wide as head across eyes; interfacetal setae absent. Antenna 0.38 × as long as head capsule width, composed of 11 antennomeres; scape enlarged, distinctly roundly projected anteriorly; pedicel narrower than scape, barrel-shaped, about 1.20 × as long as wide; antennomere 3 distinctly shorter than pedicel, about 0.70 × as long as pedicel. Antennal club consisting of three antennomeres, elongate, fusiform; antennomere 9 longer than two apical antennomeres combined, antennomere 10 obliquely truncate apically, terminal antennomere short, triangular. Anterior clypeal margin slightly emarginated. Labrum truncate at apex. Mandible bidentate at apex. Maxillary cardo transverse with outer angle reaching slightly outside of mouth cavity; terminal palpomere slightly widened, obliquely truncate at apex. Submentum transverse; mentum cordate in shape, anterior edge emarginated with distinct anterior lobes, ventral surface with lateral longitudinal impressions; prementum transverse; labial palps separated by distance about equal to width of palpiger; apical palpomere distinctly narrower and shorter than penultimate one.

PROTHORAX. Pronotum with anterior corners rounded, obtuse, not swollen with regular border; anterior margin without bordering line; lateral margin with additional oblique line in posterior part, hind margin bordered medially. Prothoracic hypomeron smooth; notosternal suture distinct; prosternal process with parallel margins, truncate apically; its surface with lateral carinae joined just before anterior margin of prosternum forming inverted Y-shape. Prosternum in front of coxa about 0.70 × as long as coxal longitudinal diameter at same position, anterior margin with complete bordering line; procoxal cavity transverse with apically rounded lateral slit, without anterior bordering line.

PTEROTHORAX. Mesoventrite with anterior edge emarginate with complete raised border; mesoventral process at median width of coxa about equal as corresponding coxal diameter; meso-metaventral articulation with suture visible; junction slightly sinuate. Scutellar shield pentagonal; surface punctate and glabrous. Elytra with sides rounded; lateral margins narrow, visible from above from base to half its length; humeral angles present; elytral epipleuron wide, about 3.0 × as wide as corresponding metaepisternum, incomplete reaching ventrite 3, obtuse apically, inner margin with bordering line curved outwardly before base of elytron; with foveae for reception of femora. Metaventrite with discrimen long but incomplete anteriorly; metaventral postcoxal joined at middle, laterally complete, rounded; metaventrite coarsely punctate, with microreticulation on lateral sides; metepimeron distinct.

LEGS. Legs with trochanters angulate; tibiae slender, cylindrical, tibial apices without spurs; tarsi with four tarsomeres, third very small; tarsal claws in female and in male with quadrate basal tooth; empodium absent.

ABDOMEN. Abdomen with six ventrites in both sexes; ventrite 1, 2 × as long as ventrite 2, ventrite 2–5 same length; abdominal postcoxal lines incomplete, posteriorly reaching hind margin of ventrite 1 and recurved; hind margin of ventrite 5 in male widely emarginate (Fig. 13A), in female straight to slightly emarginate (Fig. 13C); in male ventrite 6 truncate apically (Fig. 13A) and tergite VIII rounded (Fig. 13B); in female ventrite 6 and tergite VIII rounded (Fig. 13D–E). In both sexes ventrite 6 with lateral pockets for accommodation of bent tergite VIII, lateral margins of tergite VIII partially covers ventrite 6 and is visible ventrally. Small glandular pores between ventrites 2–3 and 3–4 present.

MALE TERMINALIA AND GENITALIA. Sternite IX (Fig. 13F) with additional sclerite at base of apodeme in form of inverted V; apodeme rod-like, irregular; tergite X short, transverse. Tegmen in inner view (Fig. 13K) with penis guide asymmetrical, petal shaped; parameres (Fig. 13L), well developed, about 2 × as long as penis guide, with fringe of dense, long setae on apices and edges; tegminal strut rod-like. Penis capsule (Fig. 13G) with inner arm narrow, outer arm well developed; penis gently narrowing toward apex; penis tip acute, slightly curved, partially membranous apically (Fig. 13I–J).

FEMALE GENITALIA. Sperm duct short, shorter than spermatheca, broad, uniform in diameter; infundibulum absent; spermatheca compound, basal unit and apical portion connected by short, narrow duct, spermathecal accessory gland present. Coxites subquadrate, deeply roundly emarginate at base, truncate on apices; ventral surface covered with long setae. Styli reduced to small stigmata on hind margin near inner edge of coxites. Hind margin of proctiger distinctly serrate.