71 



/ ts moderate, dusky yellow. 



Under porta castaneouB, with the month and coxaB paler. 



Differs from othere in its Bhori eonvi s form, rounded Bides, and depressed kise of 

 the thorax, short and rounded elytra, and in sculpture. 



Habitat, Central America. Found by Mr. Champion on Totonicapam, Guatemala, 

 at an elevation of 10,500 ft. 



Trichopteryx vicina. 



T.vicina, Matthews, Cist. Ent. ii.p. 172, 1877; Trans. Am. Ent.Soc. xi.p. 188, 1884; 

 Biol. Cent.-Am< r. Col. ii. pt. i. p. l:S8, 1888. 



L. c. {•,., lin. = 0*75 mm.- I . parum convexa, nigerrima, pilia brevibua 



Bavis parce vestita; capite permagno, lato, aitidissimo, tuberculis indistinctis 

 impresso, oculis magnis, haud prominentibus ; pronoto magno, capite I 

 latiori, ad basim latissimo, tuberculis parvis, ordinibus n motis, sinuatis, diBpositis, 

 interstitiisque nitidissimis, profunde reticulatia ornato, laterihus leviter rotundatis, 

 late marginatis, margine dilutiori, margine basali fere recta, angulia latis, productis, 

 dilutioribus ; elytris brevibus, quadratds, lateribua parallelis, capite atque pronoto 



parum angustioribus, haud longioribus, ordinibus remotis, sinuatis, □ 



ratis, inter8titiis reticulatis, Butura postice elevata, apicibus vix rotundatis, anguste 

 dilutioribus; abdomine parum exaerto, apice tridentato; pedibus laete flavis; 

 antennie oigris. 



I oblong, slightly convex, deep black, sparingly clothed with yellow hair. 

 very large and broad, very shining, indistinctly tuberculate ; eyes large, not 



prominent ; antennae moderate, black. 

 Thorax large, longer and broader than the head, wideal at the base, ornam 



with small tubercles in remote wavy rows, interstices deeply reticulated and 



very shining, sides slightly rounded and broadly margined, with the margin 



pale, basal margin nearly straight, with the angles broad and produced, pale. 

 Scutellum large, triangular, closely asperat 

 Elytra short, quadrate, parallel at thi not longer but rather narrower than 



the head and thorax, moderately asperate in remote wavy rows, inter-' 



reticulated, suture elevated posteriorly, extremities scarcely rounded, narrowly 



pale. 

 Abdomen Blightly exposed, with the apex tridentate. 

 Legi bright yellow. 



Under parts black, with the mouth and coxae paler. 

 Differs from T. picicornis in its larger size, much fainter and very different sculpture 



of the thorax, and longer and more slender antennae. 

 Habitat, North and Central America Found in British Columbia by Mr. G. R. 



( irotch ; ami in G ila by Mr. Champion. 



Trichopteryx nigrita. 



T. >n, int. i, Matthews, Trans. Am. Ent. Soc. xi. p. 188, 1884; Biol. I i at.-Amer. 



Col. ii. pt. i. p. 141, 1888. 



L. c. ,",. lin. 0*68 mm. — Oblonga, medic, depressa, haud nitdda, fusco-nigra, 

 pilis fulviB vestita ; capite modico, antice sat producto, tuberculis parvis, remotis, 

 interstitiisque reticulatis ornato, oculia sat prominentibus; pronoto modii . 



i dilatato, capite latiori, vix longiori, ad basim latissimo, tuberculis parvis, 

 ordinibus Binuatis, ren positis, interstitiisque Bat profunde n ticulatia ornato, 



lateril marginatis, modice rotundatis, margine basali leviter Binuata, 



angulia latis, parum productis; elytris oblongis, fuscis, i mini 



ioribus, haud latioribus, ordinibus tram sat profunde el confertim 



