252 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ns 



species none other had been seen and I tentatively included it in 

 Platymorpha stating that it was not closely related to the other species. 

 The name Porechontes is derived from the Greek iropos, meaning 

 "pore," and exovre^, meaning "having." 



Porechontes wilcoxif new species 



FiGURK 29 



Between 3 and 4.5 mm. in length, oblong oval, shining, elytra 

 finely punctate, in the male the middle tibiae slightly notched and 

 the third antennal joint short and compressed, in the female the third 

 joint a little longer than the second, remaining joints long, in the 

 male the ninth and tenth joints somewhat dilated; yellow brown with 

 the occiput of the head and mouthparts piceous, pronotum more than 

 half piceous, pale along the base, elytra piceous with the margin and 

 a wide vitta common to both elytra along the suture and widened 

 near the apex into a roundish area, pale, the abdomen and base of 

 femora and ninth and tenth antennal joints pale. 



Head with the interocular space about half width of head, occiput 

 smoothly rounded, polished, finely punctate, dark to the antennal 

 sockets, frontal tubercles clearly marked, lower front pale, bulging 

 out so that the carina is not apparent, a pore in the middle of the front 

 of the male; mouthparts dark. Antennae with the third joint short 

 and compressed in the male, a little longer in the female, remainder 

 long, dark, hairy except the ninth and tenth joints which are pale 

 and in the male slightly wider. Prothorax about one-third wider 

 than long with the sides only slightly rounded, a broad scooped-out 

 depression in lower half; surface shining, very finely punctate; piceous 

 except for the pale margin and pale basal fascia. Scutellum shining 

 piceous. Elytra rather flat with wide explanate margin, small 

 humeri, shiny; shallowly punctate, piceous with wide pale margin on 

 the sides and wide pale sutural vitta beginning below the scutellum 

 and widening in a roundish apical area before apex. Body beneath 

 pale with the breast dark, the femora dark in apical half, tibiae and 

 tarsi dark, anterior tibiae thickened in male and the middle tibiae 

 with a barely perceptible notch; anterior coxal cavities open, claws 

 appendiculate. Length 3-4.5 mm.; width 1.7-2.3 mm. 



Type, male, MCZ 30676; 14 paratypes, of which 4 are in the U.S. 

 National Museum, from Barro Colorado Island, Canal Zone, col- 

 lected June 23, 1924 by Nathan Banks. Other specimens from 

 Tabernella, Cobima, Canal Zone, collected by A. Busck. 



Remarks: This species closely resembles the two following in size 

 and shape and in having the ninth and tenth joints of the antennae 

 in the male slightly dilated and a pore in the middle of the front of 



