Platycentrus taurinus

Shorter and stouter than acuticornis with much shorter horns. Resembling obtusicornis , but with horns more slender and tapering. Head broader and less arcuated at base than in obtusicornis , metapodium convex, coarsely punctured, rugulose. A pair of large depressed, finely shagreened callosities situated on a line with the horns and the ocelli and two pairs of smaller irregular ones outside these. A pair of horns arising directly above the humeri and extending obliquely forward and upward forming a right angle with the margin of the pronotum and curving outward and slightly backward until their acute apices extend horizontally. Viewed from above the extreme curve of the horns exceeds the metapodium. Viewed from in front they rise but little above the level of the dorsum. The horns are thick at the base, triquetrous or almost quadrangular, regularly narrowing to the acuminate apices. Anterior and posterior carinae sharp and definite, usually a carina arising from above the humeri and extending to the apex and an irregular dorsal one much broken at the base. Posterior process of pronotum broad at base then slightly inflated and rapidly roundingly narrowing to an acute apex. Color: dark brown punctured with fuscous, which is emphasized on the face, base of horns and posterior process. Carinae and coarse rugae lighter especially behind the horns and before the process. Callosities black. Tegmina hyaline, nervures distinct, brown, growing paler toward the margins; basal area fuscous adjoined by a light band which interrupts the brown on the nervures. (Ball, 1918) This is probably the species listed by VanDuzee as acuticornis Stål but is quite distinct from examples of that species in the writer's collection from Mexico. It is much nearer obtusicornis but differs from that species in the shape and position of the horns. (Ball, 1918)