292 H. C. FALL. 



are frequently rufous, except the elytra. Specimens vary in length 

 from 9] -13 mm. It is common in the Sierras of California (Kern, 

 Tuolumne, El Dorado and Placer Counties), being found during 

 June and July on coniferous trees. It is at once distinguished .from 

 valida by the greater disparity in the size of the spurs of the hind 

 tibise in the male. 



23. D. sulcata Lee. 



The smooth thorax, deeply impressed clypeal suture, form of the 

 spurs of the hind tibise ( $ ) and the color, are the chief character- 

 istics of this species. It occurs in the mountains of Colorado and 

 New Mexico. Specimens from Montana (Helena) in the Hubbard 

 and Schwarz collection, have a more numerously punctate thorax, 

 and are possibly distinct, but are best left here for the present. The 

 same may be said of a series of specimens recently taken by Mr. 

 Schwarz at Winslow, Arizona. These latter are paler than typical 

 sulcata, and with humeral and apical spots of darker metallic green 

 much as exist in subvittaia. 



24. D. lateralis sp. nov. 



Form, size and sculpture nearly as in albicollis. Body beneath, head, thorax, 

 tarsi, middle and hind tibise (in great part; piceous; front of clypeus, mouth, 

 palpi, antennse and legs, except as above noted, testaceous; elytra testaceous, the 

 suture narrowly, and the sides, except the margin, more broadly but diffused ly 

 blackish, with faint greenish or violet reflection. Specimens not fully colored 

 have the elytra entirely testaceous, except the humeri and apices, or the entire 

 insect may be testaceous. Head with rather broad median longitudinal impunc- 

 tate area; pubescence of upper surface sparse and inconspicuous; the elytra less 

 evidently tricostate than in albicollii. Spurs of hind tibise of % nearly as in 

 albicollis, the outer much broader than the inner and distinctly twisted. Length 

 10.5 14 mm. 



Hab. — California, Placer County (Van Dyke) ; Nevada (Fuchs). 



The color of this species is apparently not at all due to imma- 

 turity, and is very constant in type in the eleven examples before 

 me. None of the specimens of albicollis which 1 have examined 

 show the well defined smooth frontal line, which is so well marked 

 in lateralis. 



25. D. albicollis Hurm. 



The range of this familiar species is nearly that of elongata. I 

 have taken it on pines in New Hampshire and Massachusetts, where 

 it is less common than elongata. Dr. Hamilton mentions its occur- 

 rence on spruce in Western Pennsylvania. 



