Labasiella tucumanensis, nov.sp.

Labasiella tucumanensis OPITZ nov.sp. (Figs 9, 36, 70, 88, 104)

Holotype: ♂. ARGENTINA, TUCUMAN, Horco Molle, XII-1968 (IMLA). Paratype: 1 specimen. Argentina: Provincia de Salta, 4 km S Campo Quijano, 9-II-1982, H. &. A. Howden (CMNC).

Diagnosis: The holotype is similar in elytral coloration to the holotype of L. lata, from which it differs by the composition of the antenna. The combined length of the funicular antennomeres is proportionally shorter in the male of L. tucumanensis, than in the female of L. lata (compare Figs 4, 9). Also, the pronotum of L. tucumanensis has a deep depression along the midline of the disc.

Description: Size: Length 4.0 mm; width 1.7 mm. Form: As in Fig. 88. Integument: Cranium and thorax dark castaneous; antennae and mouthparts testaceous, except mandibles brown; legs mostly testaceous, femora with brown annula at distal limit, basal half of tibiae brown; elytra bicolored, black basal margin and black basal half of epipleural margin contiguous with black narrow angular fascia, two small black streaks near basal margin, a broad black angular fascia behind elytral middle, remainder of elytral testaceous. Head: Cranium coarsely punctate, antennal funicular antennomeres subfiliform (Fig. 9), capitulum lax, antennomeres 9 and 10 triangular, antennomere 11 ovate; eyes small, frons wide (EW/FW 10/35); last maxillary and labial palpomere subsecuriform. Thorax: Pronotum (Fig. 36) with angular tubercle at sides, disc coarsely punctate, deeply depressed at middle near anterior pronotal margin, with 6 small knobs; elytral asetiferous punctures arranged into 10 punctiform striae, punctures binodal, punctures extend to elytral apex, epipleural margin serrulate near elytral apex. Abdomen: Aedeagus (Fig. 104) short, distal region of phallobase slightly lobed, tegmen very reduced, submembranous, phallobasic struts confluent with phallobasic apodeme, phallobasic rod long; phallic plates broad, phallic apex broad triangular.

Distribution (Fig. 70): This species is known from Argentina.

Etymology: The trivial name, tucumanensis, is a Latinized version of the type locality.