REHN AND HEBARD 245 



tion of the dorso-internal spur slightly curved: caudal tarsi slender, in length 

 equal to about two-fifths that of the caudal tibiae; metatarsus equal to one- 

 half the tarsal length, with three puhilli, one proximal, one post-median and 

 one distal; second joint relatively elongate, but little less than half as long as 

 the metatarsus; aroUum large. 



Allotype. — 9 ; Same data as type. [Hebard Collection.] 



Description of Allotype. — Differing from the description of the type in the 

 following features. 



Size larger than male: abdominal strumosities more localized proximad. 



Head with dorsal length equal to two-thirds of length of pronotal disk; 

 fastigium quite broad, in width subecjual to the dorsal width of one of the eyes, 

 extending cephalad of the eyes a distance eqvial to one-third of the greatest 

 fastigial width, caudal continuations of marginal carinulae of fastigium less 

 decided than in male: frontal costa proportionately broader than in male, 

 margins somewhat more sinuate but of same general form, sulcation more 

 rounded, dorsal portion of costa more decidedly elevated within its margins 

 than in male: eyes less prominent than in male, in depth slightly greater than 

 the infra-ocular portion of the genae, in outline more angulate dorsad and 

 ventrad than in male: antennae short, distinctly shorter proportionately than 

 in male, foiu"th and remaining joints distad somewhat more elongate than first 

 to third joints. 



Pronotum with medio-longitudinal carinulation marked but not greatly 

 elevated; caudal margin of pronotal disk hardly emarginate mesad: lateral 

 lobes of pronotum with ventral margin more oblique than in male, caudal 

 margin sigmoid. 



Abdomen more compressed than in male; dorsal carina continuous and 

 marked to supra-anal plate: ovipositor jaws moderately produced, dorsal 

 pair with the dorso-external margin serrulate except near the acute apex, ven- 

 tral valves with distal section regularly arcuate with the apex acute: subgenital 

 plate with distal margin produced mesad, between the ovipositor valves, 

 into a spiniform process, strongly arcuate-cmarginate laterad of this. Inter- 

 space between the mesosternal lobes less strongly transverse, the width equal 

 to one and two-thirds the width of one of the lobes: metasternal lobes nar- 

 rowly separated, the foveolae separate and oblique. 



Caudal femora in length equal to about tAvo-thirds that of the abdomen: 

 caudal tibiae with fourteen to eighteen spines on external margin, internal 

 margin with fourteen to fifteen sjjincs. 



Paratypic Series.- — We have before us four adult male, two 

 adult female and one immature male paratypes bearing the 

 same data as the type and allotype. In addition to these we 

 have a female paratype from Coahuila, Riverside County, Cali- 

 fornia. 



TR.-VNS. AM. ENT. SOC, XLIV. 



