Argopistes turnbowi, Blanco, Javier & Konstantinov, Alexander, 2013

Blanco, Javier & Konstantinov, Alexander, 2013, Review of the New World species of the genus Argopistes Motschulsky (Coleoptera: Chrysomelidae: Galerucinae: Alticini), Zootaxa 3626 (2), pp. 249-267 : 261

Argopistes turnbowi new species

( Figs 36–39 )

Habitus. Body oblong oval in dorsal view, strongly convex in lateral view, 3.35 mm long, 2.71 mm wide.

Color. Reddish brown with dark band at basal one third of elytra with apex reddish brown ( Figs 36, 37 ). Antennomeres four to 11 dark.

Head. Almost entirely concealed by apical margin of pronotum. Vertex moderately convex, shiny, impunctate. Antennal calli small, nearly trapezoidal, non-protuberant, slightly converging along slightly impressed midfrontal sulcus. Antennal socket as large as antennal calli. Interantennal space narrower than transverse diameter of antennal socket ( Fig. 38 ). Eyes large, oblong, inner margins adjoined to both antennal calli and antennal sockets creating slight emargination along. Frons elongate, generally flattened, separated from each gena by slightly protuberant narrow ridge. Frontal ridge thick, raised in between antennal sockets, creating a keel-like projection, and becoming slightly raised before reaching clypeus. Genae slightly concave under eyes. Antennae filiform, extending slightly beyond elytral humeri, basal antennomere longest.

Thorax. Pronotum strongly convex, transverse, twice as broad as long at basal margin. Basal margin arcuate, slightly sinuate. Lateral margins explanate, converging towards and extending slightly beyond apical margin. Dorsal surface finely and densely punctate. Scutellum small and triangular. Intercoxal prosternal process slightly depressed longitudinally, posterior margin slightly indented, concealing short mesosternum. Metasternum with median longitudinal line.

Elytra. Humeral calli present, but not well developed. Elytral surface with confused and minute punctation. Rows of fine punctures extending from basal margin to apical margin ( Fig. 36 ). Epipleura not reaching apex of elytra.

Legs. Metafemur generally triangular with rounded corners; length about 2/3 length of abdomen; with groove along inner margin. Metatibia longitudinally slightly bowed in dorsal view; slightly longer than metatarsi combined; with shallow, flat groove at dorsal surface; apex with emarginate sheath-like prolongation, creating two acutely pointed projections; large pointed spur arises from base of first metatarsomere, and extends between and beyond two acutely pointed projections. First metatarsomere attached to metatibia preapically; at least as long as following three metatarsomeres combined. Bare, basal part of first metatarsomere about as long as apical part covered with setae.

Genitalia. Male—Aedeagus nearly straight in lateral view; widest at basal opening in ventral view, sides not parallel but slightly curved inwardly; three-pronged sclerotized structure at basal opening ( Fig. 39 ).

Etymology: This name is a patronym dedicated to R. Turnbow who collected the only known specimen of this species.

Comments: Argopistes turnbowi can be separated from the rest of the Caribbean species based on the bare, basal part of the first metatarsomere which is about as long as the apical part covered with setae ( Fig. 37 ).

Distribution: Bahamas

Host plants: unknown

Material examined: Holotype: 1) Bahamas: Andros Island; Maidenhair Coppica; bl trap, 11 June 2004; R. Turnbow; 2) Holotype Argopistes turnbowi sp. nov. des. J. Blanco & A. Konstantinov (USNM).

Figures

FIGURES 36 – 39. Argopistes turnbowi sp. nov. 36 dorsal habitus; 37 lateral habitus; 38 head, frontal view; 39 aedeagus, ventral, lateral and dorsal views.