Procoilodes Ocampo

Ocampo, Federico C., 2002, Procoilodes adrastus Ocampo, A New Genus And Species Of Miocene Hybosorid In Amber From The Dominican Republic (Coleoptera: Scarabaeoidea: Hybosoridae), The Coleopterists Bulletin 56 (1), pp. 123-126 : 123-125

Procoilodes Ocampo , new genus

Type Species. Procoilodes adrastus Ocampo , here designated.

Description. Scarabaeoidea, Hybosoridae . Body form ( Fig. 1 ) convex. Color dark brown. Head. Frons finely tuberculate, lateral margin narrowly reflexed. Clypeus with anterior margin rounded, margins reflexed. Labrum protruding past clypeal apex, weakly pointed. Eyes slightly visible in dorsal view. Antennae (Fig. 4) 10­segmented; basal

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124 THE COLEOPTERISTS BULLETIN 56(1), 2002

Figs. 2–4. Procoilodes adrastus . 2) Dorsal view of head and pronotum; 3) dorsal view of left foreleg; 4) dorsal view of right antenna.

segment apically expanded, with long erect setae on anterior side; second and third segments longer than wide; fourth to sixth segments broader than long; club 3­segmented, with first segment cupuliform and able to receive second and half of third segments; all segments with short and sparse setae. Pronotum. ( Figs. 1 –2) Surface weakly convex. Anterior margin sinuate; anterior angles strongly produced, subacutely rounded; lateral margins rounded, widest just behind middle; posterior margin sinuate, produced backward at middle. Scutellum . Surface heavily and finely tuberculate. Elytra. Shape convex, subglobose. Lateral margins curved, widest at middle, with marginal bead. Humeral umbone well developed. Wings: 1 wing protruding, well­developed. Legs. Meso­

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edge with crown of long, thick setae, with 2 apical spurs; spurs longer than first tarsal segment, internal spur longer than external. All claws simple.

Remarks. The genus Procoilodes is unique among other hybosorids from the West Indies because of its finely tuberculate frons. The genus Procoilodes is similar to the genera Apalonychus , Coilodes , and Tyrannasorus in the following characters: body form convex; apex of meso­ and metatibiae truncate, dilated, and with a large, rounded lobe on its external edge, lobe with terminal crown of setae; meso­ and metatibiae with transverse ridge near middle of external surface. Apalonychus species differ from Procoilodes species because the anterior margin of the pronotum is not sinuate, the eyes are clearly visible in dorsal view, and the humeral umbone is not developed. Coilode s species differ from Procoilodes species because the anterior margin of the pronotum is not sinuate, and the humeral umbone is not developed. The Tyrannasorus species differs from Procoilodes species because of its weakly concave antennal club, truncate clypeus, and smooth­surfaced scutellum .

Etymology. From the Latin prefix pro ­, meaning ‘‘before,’’ combined with the closely related generic name Coilodes .

Figures

Fig. 1. Holotype of Procoilodes adrastus embedded in amber, dorsal view.