ClCINDELID/E 5 



many cases known to be at least subspecific in degree of struc- 

 tural and habital divergence from the assumed typical form, it is 

 not by any means furthering, but, on the contrary greatly retarding, 

 the acquisition, by definite record, of knowledge which may ulti- 

 mately prove very useful in solving some of the mysteries of evo- 

 lution.* 



Amblycheila Say 



There are two rather distinctly circumscribed groups in this 

 genus, represented by cylindriformis Say and baroni Rivers, but, 

 until more of the species are known, it would be better not to attempt 

 the definition of subgenera. Their habits are nocturnal, which 

 accounts for the present scarcity of material in collections. If the 

 various forms were fully known we should probably have an extended 

 series of species and subspecies available for study. The following 

 is described at present as a subspecies but may have higher value: 



Amblycheila baroni ssp. enodis nov. Form very elongate and rather 

 slender, deep black throughout, the integuments with alutaceous lustre; 

 head almost as wide as the prothorax, rather longer than wide, smooth, 

 with the anterior impressions moderately deep, the eyes rather convex, 

 at nearly twice their length from the base; antennae long and slender; 

 prothorax somewhat wider than long, the broadly rounded sides oblique 

 behind about apical two-fifths, feebly sinuate before the obtuse and 

 slightly rounded basal angles; base arcuate, strongly beaded, three- 

 fourths as wide as the apex, which is feebly arcuate, somewhat angulate 

 at the middle; surface smooth, convex, finely striate along the middle, 

 with a few moderate punctures at each side in line parallel with the 

 margin, one of which at least, near the middle, bears a long seta; side 

 margins very finely reflexo-beaded; scutellum broad, confined to the 

 peduncle; elytra two-fifths wider than the prothorax, oblong-oval, more 

 than three-fourths longer than wide, smooth, with small sparse asperulate 

 punctures, less sparse and continuing to the apex laterally, the carina at 

 the summit of the flanks fine and short, scarcely traceable behind the 

 middle, the other carinse wholly obsolete; legs long and slender. Length 

 (d 71 ) 20. o mm.; width 6.8 mm. Arizona (Garces, Huachuca Mts., 

 Cochise Co.). 



The male type was received from Mr. Knaus; it represents a form 

 allied to longipes Csy., but differing in its more slender form, ab- 

 breviation of the lateral carina of the elytra, absence of the shorter 



* At some time during last year a document ostensibly criticizing my treatment of 

 the Cicindelidse, but characterized chiefly by misrepresentation and bad manners, 

 was extensively distributed by W. Horn of Berlin. The above general remarks con- 

 stitute my only available answer to this strangely captious Hassgesang. 



