242 THE ENTOMOLOGIST. 



dages shorter, even of the pronotum, which has a more elevated 

 dorsal keel. The pronotum latero-posteriorly is simply curved, 

 and the keel on the posterior femora is uninterrupted up to 

 the apex. 



The imago is of firmer texture, has longer appendages, and 

 longer but less elevated pronotum. The latter is bisinuate 

 latero-posteriorly ; within the upper of the curves are seen the 

 rudimentary tegmina. The keel on the posterior femora is 

 interrupted before the apex. In the short-winged forms the 

 wings do not reach to the tip of the pronotal extension, although 

 the latter does not extend beyond the apex of the posterior 

 femora. In the long-winged forms the wings reach beyond the 

 pronotal extension, although the latter stretches out far beyond 

 apex of posterior femora. 



Table of the Species. 



1. 4. Dorsum of prothorax slightly tectiform, median carina 



less elevated, somewhat straight in front as seen in 

 profile. Head in front (in profile) augulate, frontal line 

 forming an angle with the vertex. 



2. 3. Head apically more acutely produced, frontal line form- 



ing a somewhat acute angle with the vertex, distinctly 

 sinuate at the insertion of the antennte. Intermediate 

 femora with keels slightly undulate, keel of posterior 

 femora (as seen from above) angulate. Posterior 

 metatarsi with small pulvilli, straight beneath, third 

 almost longer than the two precedmg together, first 

 distinctly shorter than the second . A. fali(jinosiim, Zett. 



Var. a. Brownish black, antennae widely flavous at the 

 base, lateral spots on the pronotum triangular, more 

 or less distinct, blackish holosericeous . (fuliijiiiosiun, Zett.) 



Var. /3. Brownish black, antennte as in var. a ; posterior 

 femora with a large transverse rufo-testaceous spot in 

 the middle of the exterior margins . . {fascipes, Zett.) 



Var. y. Brownish black, antennae (apex excepted), a broad 

 continuous median stripe on the pronotum, and a line 

 on each side above the base of the wings, yellow ; 

 annulations of the anterior tibiae and three large spots 

 on the posterior femora externally, whitish. On each 

 side of the pronotum there are three large, lateral, 

 blackish holosericeous spots, of which the first, sub- 

 apical, is triangular ; the second is larger and trape- 

 zoidal, the third posteriorly narrow, sublunate 



{pulchella (Sahib.)) 



3. 2. Head less produced apically, frontal line straight, form- 



ing a right angle with the vertex. Keels of inter- 

 mediate femora not undulate, posterior keel (seen from 

 above) not angulate. Posterior metatarsus with pul- 

 villi less depressed, beneath obliquely subrotundate- 

 angulate, third shorter than two preceding together 



A. subtdatus (L.) 



