Acentroptera bita Staines, 2014

Staines, C. L., 2014, A revision of the genus Acentroptera Guérin-Méneville, 1844 (Coleoptera: Chrysomelidae: Cassidinae), Insecta Mundi 2014 (332), pp. 1-19 : 4-5

Acentroptera bita Staines n. sp.

Fig. 2

Holotype male: R.P., Panama Pr , Cerro Campana, 17-VII-1978 // N. E. Woodley Collector // Holotype Acentroptera bita Staines , des. C. L. Staines 2013 [red label] ( USNM) .

Description. Elongate; parallel-sided; subdepressed; small; reddish-yellow; eyes dark; elytra with various dark markings. Head: vertex alutaceous, medial fovea present; not depressed between eyes; triangular projection present between antennal bases; frons finely punctate, slightly tuberculate. Antenna: reaches to humerus; slender; antennomere 1 transverse, ½ length of 2; 2-7 elongate, expanding apically; 3 1½x length of 2; 4 subequal in length to 2; 5-7 decreasing in length; 8-10 transverse, subequal in length, each ¾ length of 7; 11 slightly longer than 10, acutely pointed at apex; 1-7 sparsely punctate; 8-11 setose. Pronotum: subquadrate; convex; lateral margin bisinuate, angulate in middle, narrowly margined; anterior angle angulate, not produced; posterior angle acute; surface densely punctate; crescent-shaped basal impression present; pronotal length 0.9 mm; pronotal width 1.1 mm. Scutellum: quadrate; punctate. Elytron: lateral margin straight, smooth, narrowly margined; exterior apical angle angulate; apical margin sinuate, laminate, smooth; sutural angle notched, without tooth; humerus angulate; with an additional puncture row present between rows 5 and 6 in middle plus short scutellar row; interspaces 2, 4, and 6 costate, 8 costate on base and apex; elytral length 4.3 mm; elytral width 1.8 mm. Venter: pro- and mesosterna impunctate medially, punctate laterally; metasternum and abdominal sterna impunctate; apical margin of last abdominal sternite without fringe of setae. Leg: punctate; glabrous; tibia with fringe of setae on inner apical margin. Total length 5.5 mm.

Etymology. From bita (Anglo-Saxon) meaning small or little for the unusually small size of this species.

Host plant. Unknown.

Distribution. Panama.

Figures

Figures 1-9. Habitus of Acentroptera species. 1) Acentroptera basilica Thomson. 2) Acentroptera bita Staines n. sp. holotype. 3) Acentroptera dejeanii Guérin-Méneville. 4) Acentroptera emdeni Uhmann. 5) Acentroptera lacordairei Lucas. 6) Acentroptera lineata Staines n. sp. holotype. 7) Acentroptera nevermanni Uhmann. 8) Acentroptera norrisii Guérin-Méneville. 9) Acentroptera ohausi Weise.