65 



moderate, not prominent : antenna' rather short, pitchy-black, with the eighth 

 joint small. 



Thorax moderate, v< ry convex, longer and broader than thi bead, widest at thi I 

 ornamented with moderate tubercles closely arranged in irregular rows, 

 with tlir interstices deeply reticulated, Bides slightly rounded and margined, 

 basal margin depressed and faintly Binuated, with the angles produci d and 

 pale. 



Scutellum large, deeply and closely asp* rated, and reticulated. 



Elytra oblong, not attenuated posteriorly, longer but not broadi rthan the head and 

 thorax, closely asperated in wavy rows, with the interstices deeply reticulated, 

 sides nearly straight, slightly margined, extremities broad, rounded, and nar- 

 rowly pah . 



Abdomen slightly exserted. 



moderate, bright yellow. 



Under parts black, with the mouth, coxa', and posterior margin of the a am 



piceouB, metasternum deeply asperated. 



Differs from '/'. Hornii in it parallel form, thorax widest at tl and 



short black antennae. 



Habitat, North America. Found in British Columbia by Mr. (i. I!. Crotch. 



Trichopteryx xanthocera. 



T. xanthocera, Matthews, Cist. Ent. ii. p. 174, 1877. 



L. c. , H , ; lin. = 1 mm. — Oblonga, sat lata, eonvexa, piceo-nigra, elytris rufes- 

 centiluis, pilis modicis, pallidis vestita; capite magno, lato, tuberculis exiguis, 

 interstitiisque glabris ornato; oeulis hand prominentibus ; pronoto magno, convexo, 

 postice dilatato, capite longiori et multo latiori, ad basim latissimo, tuberculis 

 minutis, ordinibus transversis, fen rectis, dispositis, interstitiisque nitidis, indis- 

 tincte reticulatis, ornato, lateribus parum rotundatis, flavo-marginatis, margine 

 basali depressa, sinuata, angulis longe productis, flavescentibus ; elytris brevibus, 

 quadratis, capite atque pronoto hand longioribus aut latioribus, ordinibus dis- 

 tinctis, sinuatis, sat profunde asperatis, lateribus fere rectis, sutura rufescenti, 

 apicibus latis, parum rotundatis, dilutioribus ; abdomine sat exserto, ohm 

 rufo-piceo, apice minute tridentato ; pedibus sat robustis, lsete tiavis ; anteunis 

 longis, hetissiuie tiavis. 



B dy oblong, rather broad, convex, nigro-piceous, with the elytra rufescent, clothed 



with pale hair. 

 Head large and broad, ornamented with very small tubercles, with the interstices 



shinin aot prominent ; antenna' long, very bright yellow. 



Thorax larg* ., dilated posteriorly, longer and much broader than the head, 



wide-i at ii ornamented with minute tub* rcli - in uearl; t trans- 



vi i interstici - shining and indistinctly n ticulati d, sidi a faintly rounded. 



with the margins yellow, ha-al margin depressed, Binuated, with the an 



very much produced, flavi Bcent. 

 Scutellum large, triangular, and <■'. ed. 



Elytra Bhort, quadrate, not longer or broader than the bead and thorax, rather 



deeply asperate in distinct wavy row.-, aid 3uture rufescent, 



extremitii a broad, slightly rounded, and pa 

 Abdomen rather long, ol as, with the apex minutely tridentate. 



Legs ratlur robust, bright yellow. 

 Under parts entirely rufo-piceous, metasternum dusky. 

 Differs from /. Hornii in il i Bize, quadrate and broader form, rufescent 



elytra, fainter sculpture, and large, VI ry bright yellow antenna . 



Habitat, North America. Found in British Columbia by Mr. <■ R. Crotch. 



