THE CANADIAN ENTOMOLOGIST. 9, 



the elytra are shorter and their nervures stronger than in that species. 

 Two larger individuals (6 mm. in length), apparently not distinct from 

 the above, are broader with a wider front and a shorter and more obtuse 

 vertex. They are both females. 



6. Athysanus sexvittatus, u. s/>. 



Form of A. comma nearly. Greyish, tinged with yellow, especially on 

 the head. Vertex with the impressed median line brown ; marked either 

 side on the disc with transverse oblong brown spots ; apex polished, pale 

 yellow with an elongated black mark on either side reaching over on to 

 the base of the front; ocelli pale with a blackish dash on either side. 

 Pronotum with six longitudinal brown vitti^ and a few irregular marks 

 before. Scutellum with two discal dots, two basal spots, and sometimes 

 a double cloud on the apical field, brown. Elytral areoles edged with 

 fuscous ; nervures thick, soiled white. Front brown, its broad base and 

 a few broken arcs pale ; sutures of the lorre brown. Tergum black at 

 base, the sides and about four apical segm.ents pale, the latter with two 

 broad obscure longitudinal brown vittae terminating in a black spot either 

 side on the large polished yellowish genital segment, or these vittae may 

 become geminate by the intrusion of a longitudinal pale line ; sides of 

 these pale apical segments with a row of black dots. Venter and disc of 

 the valve dark brown ; connexivum, hind edge of the ultimate segment, 

 edge of the valve, plates and pygofers, soiled yellow or clouded with 

 dusky ; the pygofers with a large blackish cloud beneath toward their 

 apex. Anterior and intermediate femora twice banded, and the posterior 

 lineated with brown ; tibiae with brown dots. Vertex flat, edge subacute ; 

 length on the middle one-third greater than that next the eye. Front 

 regularly narrowed to the apex. Clypeus not widened apically. Prono- 

 tum short, liind edge nearly straight, ajiterior edge feebly rounded. Elytra 

 short ovate, reaching to the penultimate dorsal segment. Valve rather 

 large, obtuse at apex ; plates oblong, widened at base, their apex trun- 

 cated; pygofers large, blunt at apex, surpassing the plates. Length, 33^ mm. 



Colorado. Described from two males received from Prof. C P. 

 Gillette. This species is most nearly allied to A. comma in most of its 

 characters, but it has the colours and markings, almost, of obsoletiis and 

 extrustis. Only males are known to me. 



