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with frons by short lonq-ittuhnal keels l)efore nieetin.Q', the fos- 

 settes thus lieino- pvriform. rather laroe, and partly visible dors- 

 ally. The frons is much shorter than the clypeus medianlv. but 

 is produced laterally nearly as far apically as the middle len,Q:th of 

 the frons, the apical marqin thus beinj;^ deeply emarginate apically 

 in a rounded manner. Axillary vein of clavus, taken from its 

 curving- at the commissure, about three-fourths of the length of 

 the stalk of the anal, running- into the anal, basal of the middle 

 of the latter. I'rachial vein forked distinctly nearer the base than 

 is the radial. Stig-ma narrow, elongate triangular. First and 

 second segments of hind tarsi each with 5 uneven, rather larg;e 

 spines. 



Length 8 mill. 



HAli. Arizona, Xogales ; ( Koebele's no. 2518 Sept.). 



Fam. ASIRACIDAE. 

 Cochise gen. nov. 



\ertex very transverse, keels oJDSolescent, impressed trans- 

 versely on the basal marg-in, about one-fifth wider than an eye ; 

 with the eyes very distinctly wider than the pronotum. Frons 

 medianly impressed transversely by a deep line, the basal part 

 with 2 widely separated keels (a puncture between them m the 

 middle), uniting on the middle of the apical part, which narrows 

 concavely towards the apex, where it is truncate, (ienae almost 

 obsolete. Antennae arising almost at the exterior apical ocular 

 angle, flattened and carinately foliaceous, one-third longer than 

 the maximum width of the frons, first segment wider apically than 

 basally, second five-eighths longer than the first. Clypeus rather 

 swollen, carinate medianly. Pronotum scarcely longer medianly 

 than the head, hind margin obtuse -angularly emarginate, niedian 

 i-ceel entire, a puncture on each side ; lateral keels distant apically 

 and basally, arising anteriorly at the interior margin of the eye, 

 curving at an acute angle near the hind margin to meet the eye 

 again, enclosing a puncture. Scutcllum with the lateral keels 

 obsolescent. Legs simple. Tegmina with the radial forked a 

 trifle nearer the base than is the brachial ; 7 apical cells ; the 

 second and third apical veins have a common base, the third 

 reforking near the apex. Hind tibiae with a srnall s])ine near the 

 base, four uneven, large spines at the apex ; the spur large and 

 broad, three-sided, each side flat not foliaceous, there are a num- 

 ber of verv minute spines, scarcely visible, on one e<\i::^c. The 



