THE CANADIAN ENTOMOLOGIST. 



47 



are in most cases sufficiently different to be distinctive. No measure- 

 ments of width of elytra are recorded, the tendency to warp, curl and 

 separate when dry rendering them unreh'able for comparative purposes. 



Length ot 

 Prothorax 



Length of 

 Elytra in 

 Terms of 

 Pro thorax 



2.52 

 2.69 

 2.67 



^^68 

 3-05 

 3 40 

 3-39 

 3-33 

 ^58 

 2.27 

 2.22 



2 39 

 2.31 

 3-^3 

 3^97 

 3-67 



3 72 

 3-54 

 3-9Ï 



Ammodonus granosiis, n. sp. 



Broadly oval, moderately convex, dull black, densely clothed above 

 with appressed ash coloured scales varied with brownish, and with numer- 

 ous short subrecumbent squamiform hairs which on the elytra are arranged 

 subseiially in great part ; beneath with sparse appressed narrow scales or 

 scale-like hairs, side margins of the body fimbriate with short feebly 

 clavate squamiform hairs. Head and prothorax with numerous naked 

 granules which are separated by about their own diameters on the head 

 and anterior parts of the prothorax, a little less close toward the base of 

 the latter. The prevailing colour of the scales is ashy, feebly nubilously 

 varied with pale brown at the middle of the basal and apical parts of the 

 pronotum ; elytra with a uniformly slightly brownish shade along the 

 suture, exterior to which is a fuscous basal spot and an irregular transverse 

 median spot, and behind the latter and nearer to the suture than to the 

 side margin, an elongate oblong spot of same colour. 



Length 5 mm.; width 21/^ mm. 



Rincon Mts., Southern Arizona. 



Three examples of this interesting species were taken by Mr. G, 

 Beyer, from one of which the above description is drawn. It is evidently 



