004 ZOOLOGY— 1NSE0T8. 



My Decticus trilineatus, of which some specimens were forwarded to 

 Dr. BruniKT do Wattenwyl, is removed to a new genus, Steiroxys, estab- 

 lished for its reception. 



ANABRUS, Hald. 



ANABRUS SIMPLEX, Hald. 



I find but one specimen of this species in the collection made in 

 Nevada ; but from Dr. W. J. Hoffman's letter I presume they were seen in 

 considerable numbers in Central Nevada. 



This is the species that is eaten by the Indians. Not only do they 

 eat them after roasting, but often without any other preparation than simply 

 pulling- off their leg's and head. 



ANABRUS PURPURASCENS, Uhlcr. 



The collection contains three specimens, which I am quite confident 

 belong to this species, but at what locality taken does not appear. I have 

 never found or known of it being found west of the main Rocky Mountain 

 l-ange, therefore conclude they are from Colorado or Northern New Mexico. 



STEIROXYS, Herm. 



STEIROXYS HERMANNII, sp. nov. 



Plate XLIV, Fig. 4. 



Male. — The dorsal portion of the pronotum, instead of having the mar- 

 gins subparallel as in St. trilineaia, has them slightly curving inward just 

 in advance of the middle, and then outward from there to the front ; the 

 middle dorsal line very minute and subobliterated in front; a slight trans- 

 verse impression behind the front border; posterior margin truncate, and 

 as given in Mr. Hermann's figure (pi. v, fig. 65); the lateral margins nearly 

 straight, not curved inward at the humerus, and the slope upward more 

 gradual than in St. trilineata. Elytra squamseform, extending only across 

 the second segment, rounded to a blunt point at the apex; the two larger 

 cells or areas subequal in the left or upper elytron; the outer area longest; 

 the vein which separates them runs almost directly along the middle of the 

 elytron toward the apex, making a slight sigmoid curve. Super-anal plate 

 with a square notch in the middle, lobes obtusely rounded; cerci rather 

 short, enlarged at the apex, forming a blunt point or angle externally at 

 the tip, while the internal margin of the tip is prolonged into a long, very 



