North American Coleoptera. 197 



ilar to the thoracic pieces but a little narrower, each scute hav- 

 ing a distinct median line and a large lateral fovea with raised 

 center, as v/ell as the oblique impressions shown on the thorax. 

 The ninth segment is narrower than the others and bears two 

 long processes which apparenth* originate on the dorsal sur- 

 face of the segment near its base. Unfortunately thev were 

 accidentally broken off in my specimen and I can judge onlj- 

 from the broken surface as to the exact point of attachment. 

 These processes are seen under a high power to be minutelv 

 rugose and are sparsely armed with small points. The 

 lateral margin of each segment of the abdomen is armed with 

 a corneous, tooth-like plate, bearing bristles. In ventral as- 

 pect each of the segments from the lirst to the seventh bears 

 six corneous plates arranged as shown in the figure, the large 

 anterior ones bearing setee which are directed backwards. 

 On the eighth segment all the plates except the lateral ones 

 are united, on the ninth they are all joined. Anus prolonged, 

 corneous, grooved beneath. 



Spiracles nine on each side, the first pair situated under the 

 anterior angles of the mesothorax, the remainder in the dorsal 

 portion of the connecting membranes of segm.enls one to 

 eight of the abdomen. 



Legs gradually longer from the first to the third pair, coxce 

 conical, prominent, femora longer, larger towards the tip and 

 with a well defined oblique impression on the proximal half, 

 tibiae about half as long, slighth* enlarged towards the tip, 

 tarsal piece of the same length as the tibia and bearing two 

 equal claws. 



This larva resembles very closelv that described by Dr. 

 Horn (Trans. Am. Ent. Soc, VII., d. 37) as either Dica^his 

 splendidus or D. costatus, but from the fact that the present 

 specimen differs from his description in many details I infer 

 that in all probabihtv the Doctor's insect was of the latter 

 species, the resemblance of the larvje being no greater than is 

 to be expected in forms so closely allied. Among the main 

 points of difference to which I vrould call attention are the 



