50 



ill ami thorax, widest at the shoulders, remotely and irregularly asperated, 

 nearly straight, extremities broad, rounded, and paler. 

 Abdom it not much exposed, testaceous. 

 Legs rather short, bright yellow. 

 Under parts entirely testaceous, metastemuni dusky. 



Differs from all other species in its verj Bhining translucent surface, jjale and slender 

 ■ I ii. i . ii staceou8 under parts, and in sculpture. 



Habitat, Central America. Found in Cerro Zuuil, Guatemala, at an elevation of 

 four to five thousand feet, by Mr. Champion. 



Trichopteryx rufescens. 



T. rufescens, Matthews, Trans. Am. Eut. Soc. xi. p. 131, 1884 ; Biol. Cent.-Amer. 



Col. ii. pt. 1. p. 137, 1888. 



L. c. j 7 ^ lin. = 0"87 mm. — Sat lata et brevis, valde convexa, nitida, pilis 

 brevibus flavis vestita, capite atque pronoto nigrescentibus, elytris rufescentibus ; 

 riipili' magno, tuberculis parvia, distinctis ornato ; oculis magnis, baud promi- 

 neutibus ; pronoto permagno, postice valde dilatato, capite longiori ei multo latiori, 

 tuberculis distinctis, interstitiisque reticulatis ornato, ad basim latissimo, lateribus 

 rotundatis et late marginatis, margine basali profunde Binuata, angulis latis, valde 

 productis; elytris brevibus, postice valde attenuatis, rnfescentibus, capite atque 

 pronoto baud longioribus, sat angustioribus, ordinibus transversis confertim, sat 

 Leviter asperatis, lateribus rectis, apicibus valde rotundatis, late dilutioribus, 

 extremis albidis ; adomine modice exserto, rufo-piceo, apicem versus dilution; 

 pedibus robustis, atque antennis gracilioribus, lrete flavis. 



Body short and rather broad, very convex, shining, clothed with short yellow hair, 



with the bead and thorax blackish, and the elytra rufescent. 

 Head Large, ornamented with small, distinct tubercles; eyes large and prominent; 



antennsB rather slender, bright yellow. 

 Thorax very large, much dilated at the base, longer and much broader than the 



bead, widest at the base, ornamented with distinct tubercles, interstices 



reticulated, sides rounded and broadly margined, basal margin deeply sinuated 



with the angles broad and much produced. 

 Scutellum large, triangular, closely asperated. 

 Elytra short, much attenuated posteriorly, rufescent, not longer, but rather 



narrower than the head and thorax, closely but rather lighth asperated in 



transverse rows, sides straight, extremities broadly pale and much rounded, 



with the edge white. 

 Abdomen moderately exserted, rufo-piceous, paler towards the apex, apex faintly 



tridentate. 

 I . is robust, bright yellow, basal joints of all the tarsi dilated. 

 Under parts rufo-piceous, metasternum and gular region black, mouth and coxae 



bright yellow. 

 hijl'rrx from others in its very convex form, posteriorly attenuated and rufescent 



elytra, bright yellow legs and antenna 1 , and in sculpture. 



Habitat, Central America. Found in Guatemala and Panama by Mr. Champion. 



Trichopteryx similior. 



V. similior, Matthews, Trans. Am. Ent. Soc. xi. p. 130, 1884; Biol. Cent.-Amer. 



Col. ii. pt. i. p. 130. 1888. 



L. c. ^j lin. = 1 mm. — Oblonga, valde convexa, nitida, nigro-fusca, pilis flavis 

 vestita; capite magno, antice rotundato, tuberculis remotis ornato ; oculis magnis, 

 baud prominentibus ; pronoto magno, capite latiori et multo longiori, prope medium 



