102 THE CANADIAN ENTOMOLOGIST. 



ON SOME ARIZONA ACRIDIID/E. 



BY A. N. CAUDELL, WASHINGTON, D. C. 



The following species of Acridiidae were recently purchased by the 

 writer from the collector, Dr. R. E. Kunze, of Phcenix, Arizona. There 

 are thirty-two specimens, representing eleven species, one of which 

 is apparently undescribed, representing a new genus. Several of the 

 species are, for various reasons, quite interesting, and all are herein 

 listed. They are as follows : 



i.- — Hippiscus leprosus, Sauss. 

 Xanthippus leprosus, Sauss. Prodr. Oedip., 92 (1884). 

 Hippiscus leprosus, Scudd. Psyche, VI., 334 (1892). 



One female; Pinal Mts., Gila Co.; July 24, 1900. 



This species was determined by Mr. J. A. G. Rehn. of Philadelphia. 



2. — Trimerotropis vinculata, Scudd. 

 Trimerotropis vinculata, Scudd. Proc. Bost. Soc. Nat. Hist., XVIII., 



270 (1876). 

 Trimerotropis ciucta, Sauss. Prodr. Oedip, 171 (1884). 



One male, two females; Pinal Mts., Gila Co.; July 12-18, 1900. 



One of the females has the posterior tibiae very slightly tinged with 

 red. 



Ar/eopteryx, nov. gen. 



Head moderately prominent, nearly as wide as the metanotum 

 and distinctly elevated above the pronotum. Antennae filiform. Eyes 

 subglobular, prominent, quite remote from each other, the space between 

 them three times as broad as the extreme width of the basal segment of 

 the antennae. Fastigium feebly sulcate, with well-elevated margins, which 

 terminate between the eyes. A moderately distinct median carina 

 extends from the middle of the fastigium to the anterior margin, where it 

 meets with the lateral carinae, which converge at that point. Lateral 

 foveola? large, shallow and subtriangular in shape. The frontal costa 

 averages about one-third the width of the interocular space, is sulcate 

 throughout, has moderately-elevated margins and gradually narrows in the 

 upper hall to just before reaching the vertex, where it suddenly broadens 

 and then immediately narrows again as it meets the fastigium. Lateral 

 carinae of the face about as prominent as the sides of the frontal costa and 

 subparallel with them. Thorax transversely wrinkled on the slightly 

 tectate pronotum and longitudinally rugose on the flattened disc of the 

 metanotum. The principal sulcus cuts the thorax before the middle. 



