69 



middle, closely asperate, Bides scarcely rounded, extremities much rounded, 



narrowly pale. 

 Abdomen much exserted, obtuse, black. 

 / moderate, bright yellow. 

 Under parts black, mouth and coxse yellow. 



ra from other Bpi cies in its dull sooty colour and close sculpture. 



Habitat, Central America. Found in Mexico. 



Trichopteryx bidilatata. 



'/'. bidilatata, Matthews, Trans. Am. Ent. Sue. \i. p. L88, L884; Biol. Cent.-Ami 



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



L. c. ,;. ,';. 1 in. ()'63-0"75 mm. — Oblonga, convexa, hand nitida, obscure 

 castanea, pilis brevibus griseis d( nse vestita ; capite magno, lato, tuberculis 

 ordinibus transversis dispositis, interstitiisque reticulars, omato; oculis magnis, 

 .-at prominentibus ; pronoto modico, fcransverso, capite parum latiori, haud lon- 

 giori, ad medium latissimo, tuberculis sat magnis, ordinibus transversis, sinuatis 

 dispositis, interstitiisque reticulatis, -at nitidis, omato, lateribus rotundatis et 

 marginatia margine basali fere recta, angulis minime productis; elytris oblongo- 

 ovalibus, ad media latissimis, capite atque pronoto nee latioribus, nequi longioribus, 

 ordinibus transversis confertissimi asperatis, apicibus latis, fere rectis, extremis 

 albidis.; abdomine longe exserto, obtuso, marginibus segmentorum dilutioribus ; 

 pedibus longis, la to flavis ; antennis modicis, obscure llavis. 



Body oblong, convex, not shining, dark castaneous, thickly clothed with short 



grey hair. 

 Head large and broad, ornamented with tubercles in transverse rows, interstices 



reticulated; eyes large, and rather prominent; antenna' moderate, dusky 



yellow. 

 Thorax moderate, transverse, rather broader but not longer than the head, widest 



at the middle, ornamented with rather large tubercles in transverse rows, 



interstices reticulated and rather Bhining, sides rounded and margined, basal 



margin nearly straight, with the angles slightly produced. 

 ScuteUum large, triangular, and closely asperated. 

 Elytra oblong-oval, widest at the middle, not longer or broader than the head and 



thorax, very closely asperated in transverse rows, extremities broad, nearly 

 tight, with the edge white. 

 Abdomen long, obtuse, with the margins of the segments paler. 

 Legs rather long, bright yellow. 



Under parts black, with the coxa and apex of the venter piceous. 

 Differs from T. Edithia in it- smaller size, long* c elytra, and dusky antennae ; and 



from all other- in the doubly dilated outline of its body. 



Il'il'it-it, Central America. Found in Guatemala by Mr. Champion. 



Trichopteryx Grenadensis. 



'/'. Grenadensis, Matthews, Ann. Mag. Nat. Hist. •',. xiii. p. :;:'.'.'. 1894. 



L. c. ,";., lin. =0*68 mm. — Oblonga, sat depressa, postice hand attenuata, atra, 

 nitidula, pilis fuscescentibus parce vestita; capite permagno, lato, fere glabro, 

 nitido; oculis modicis, haud prominentibus ; antennis Bat robustis, flai noto 



brevi, capite paullo latiori, ante ba.-im latissimo, tuberculis modicis confertim 

 irregulariter die interstitiisque reticulatis omato, lateribus marginatia >t 



rotundatis, margine basali fei i, angulis rectis ; elytris brevibus, capiti 



pronoto ncc longioribus, neque latioribus, prope medios latissimis, Bat profui 



