DESCRIPTIONS OF NEW SPECIES. 163 



CALOPUS FABE. 



41O. C. aspersiis. Valde elongatus fusco-testaceus, dense punctatus, 

 cinereo-pubescens, thorace latitudine longiore vage impresso lateribus 

 fere rectis, versus apicem paulo rotundatis ; elvtris punctis parvis de- 

 nudatis politis subseriatim positis. Long. -34 -56. 



Mas antennis subserratis corpora longioribus ; oculis supra approximatis, 

 segmento ventrali quinto apice emarginato. 



Femina antennis tenuibus filiformibus, corpore paulo brevioribus ; oculis 

 supra distantibus ; segmento ventrali quinto apice haud emarginato. 



Texas, Mr. Salle and Dr. Horn ; Lower California, Mr. 

 Xantus. This species differs from C. angustus not only by the 

 small smooth spots of the elytra, but by the form of the thorax, 

 which has the sides straight, merely a little rounded near the 

 apex. In C. angustus the thorax is feebly campanulate, the 

 sides being rounded near the apex, and then broadly sinuate to 

 the base. The pubescence of the elytra is uniform in the latter, 

 while in G. aspersus longer hairs are intermixed. 



It is interesting that C. angustus, described by me from a 

 single New Mexican specimen, has been found quite abundantly 

 by Mr. William Couper, near Quebec, Lower Canada. The 

 sexual characters have not been noticed before, and are as fol- 

 lows : Male with the antennae longer than the body, flattened, 

 tolerably strongly serrate ; eyes nearly contiguous at the vertex ; 

 fifth ventral segment deeply and broadly emarginate, sixth 

 elongated, emarginate at tip. Female with the antennae scarcely 

 two-thirds the length of the body, feebly serrate ; eyes distant at 

 the vertex ; - fifth ventral segment broadly rounded at tip, 6th 

 retracted, truncate. 



MICROTOtfUS LEC. 



471. M. suericans. Elongatus fuscus, opacus, supra dense rugose 

 punctatus, pube aurea depressa brevi sericans, fronte inter antennas 

 linea profunda (sutura clypeali) impressa, thorace subquadrato, apice 

 vix emarginato, angulis anticis rotundatis, lateribus paulo sinuatis, 

 angulis posticis acutis, basi utrinque paulo obliqua, medio subemargi- 

 nata, disco indistincte canaliculate, utrinque pone medium profunde 

 oblique impresso ; elytris thorace paulo latioribus, transversim modice 

 convexis. Long. -10 -15. 



LEG. Class. Col. N. America, 259. 



Not uncommon, from New York to Georgia, on leaves of trees 

 in early summer. The antennae are nearly filiform, but very 



