THE CANADIAN ENTOMOLOGIST. 285 



a spot on each lora, fulvous-yellow; disc of the cheeks with a pale 

 cloud which sends a branch along the upper edge of the lora to the front. 

 Antennas black, base of the seta pale. Pronotum irrorale and narrowly 

 edged with pale, with a few irregular yellowish marks along the anterior 

 border. Middle line of the scutellum, a curved mark either side of this 

 on the basal field and the margins yellow, the latter interrupted at their 

 middle. Narrow edges of the abdominal segments and the spines of 

 the pygofers pale. Femora with a fulvous band ; hind tibiae yellow, 

 dotted with piceous, the spines and claws whitish. Elytra soiled white, 

 smoky at tip, nervures concolorous broadly bordered with fuscous, the 

 costal and commissural pale. 



Michigan ; Colorado. Described from one male and three female 

 examples taken at Agricultural College, Michigan, by my friend Mr. G. 

 C. Davis, and another female received from Prof. C. P. Gillette, taken in 

 Colorado. 



This insect is nearly allied to the species described by me as Athy- 

 ■samis striaiulus, Fall. (?), in Ent. Am., vi., p. 134, like which it has a well- 

 developed elytral appendix. Two of the specimens before me have a 

 second transverse nervure between the first and second sectors of the 

 elytra, thus allying them to Deltocephalus, but for the present it seems 

 better to place them in genus Athysanns. 



Our described North American species of Athysanus may be 

 arranged as follows : — 



A. Stout species with a short vertex and abbreviated elytra, without an 

 appendix : — 



1. A. obsoletus, Kirch. 2. A. extrnsus, Van D. 3. A. comma, 

 Van D. 4. A. plutonius, Uhler. 



B. Smaller, more elongated species, with more produced subcorneal 

 heads and longer elytra without an appendix : — 



5. A. Curtisii, Fitch. 6. A. bicolor, Van D. 7. A. obtutus, Van D. 



C. Species similar in form to those of the last section, but with a shorter 

 head, flatter vertex, and longer elytra with a well-developed ap- 

 pendix : — 



8. A- instabilis, Van D. Q. A. striatulus. Fall. (?). 



