906 ZOOLOGY INSECTS. 



the lobes rounded; ovipositor nearly as long as the entire body, slightly 

 curving upward at the apex, not enlarged in the apical portion. Antennae 

 wanting in the only specimen. Posterior femora slender, smooth, passing 

 the abdomen about one-third of their length. Spines over the anterior 

 coxa3 slender. Prostemum unspined; and themeso- and meta-sternal plates 

 small and obtuse. 



Color (alcoholic). Dorsal portions throughout pale olive, striped with 

 yellowish lines. Two rather narrow yellowish lines (one from each eye) 

 extend back along the entire length to the tip of the abdomen ; each 

 abdominal segment is margined posteriorly with a quite narrow yellowish 

 line; the lateral margins are marked with a somewhat broader line of the 

 same color. Face and entire ventral surface pale yellow. Legs purplish 

 externally. The olive of the abdomen and pronotum is more or less slightly 

 tinged with rufous near the margins of the spaces. 



Dimensions. Length of body, 1.30 inches ; ovipositor, 1.20 inches; 

 posterior femora, 1.25 inches; posterior tibise, 1.22 inches. 



From the collection of 1874 (October 17). San Carlos; H. W. Hen- 

 shaw. 



The genus Steiroxys was established last year by Mr. Otto Hermann, 

 of Vienna, Austria, from some specimens of my Decticus trilineatus, which I 

 transmitted to Dr. Brunner Wattenwyl. The specimen now before me cor- 

 responds in several respects with the generic characters given by Mr. 

 Hermann, yet the variation in the pronotum and the general appearance of 

 the specimen render it exceedingly doubtful whether it should be placed 

 here. 



The tibial spines appear to be the same as in that genus ; but as the 

 specimen is somewhat imperfect I cannot speak positively in this respect 

 I have therefore placed it here provisionally rather than establish a new 

 genus on a single and somewhat imperfect specimen. 



LOCUSTA. 



LOCUSTA FULIGINOSA, Thos. 

 Locustafuliginosa, THOS., U. S. Geol. SUIT. Terr., 1871, 443. 



I find among the dried specimens of the collection of 1872 a female 

 ol this species, which was established on a single somewhat imperfect male 



