AMERICAN HYMENOPTERA. 307 



Las Cruces (September 6th), La Cueva, Organ Mountains (Altitude 

 5300 ft., at light, September 4th), New Mexico (Cockerell). An- 

 other specimen from the Chicago Academy of Science labelled Texas. 



60. Mutilla bellerophon Fox (100). 



Fig. 59 ; wing. 

 Numerous specimens, Austin and Fedor, Texas. The punctuation 

 of the head and abdomen is variable but correlated, — the head 

 punctures are rather fine in some specimens and close in others. 

 When the head is finely punctured the second abdominal segment 

 is smooth, otherwise it is punctulate with scattered punctures. Some 

 specimens have the abdomen rufous. Several distinctive characters 

 of the Texas specimens are obvious and may be noticed : the bi 

 sected area of the metathorax is as long as three areoles ; the outer 

 cubital vein is attenuated before and behind, while the inner cubital 

 is evanescent posteriorly; the marginal cell is clouded toward the 

 stigma; and the mesosternum has two crenulate ridges. 



61. VI ill ilia Cockerelli sp. nov. 



Head, thorax and petiole of abdomen reddish, remainder of abdomen, legs and 

 antennae black, wings in fu mated, veins black, coarsely punctured species; meso- 

 sternum with small teeth. 



Hale. Head rounded, broadly so behind the eyes, moderately punctured, 

 clothed with erect, whitish, scattered hairs; ocelli relatively small, the distance 

 between the hind ones three times the diameter of an ocellus and greater than 

 the distance to the eyes; the shallow space in front of the anterior ocellus con- 

 nected with the posterior edge of the clypeus by a narrow impressed line arising 

 in a deep puncture in front of the ocellus; antenna? wholly black, shorter than 

 the head and thorax, the scape densely punctured and with short, very sparse 

 pubescence. Thorax shining, prothorax continently punctured, mesothoi acu- 

 punctures separated, deep, the grooves linear and black, middle ones complete ' 

 scutellum rugosely punctured ; metanotum reticulate, but not coarsely, basal 

 areas confusedly crenulate transversely, mesopleural punctures strong only in 

 the centre of the bulbous portion; mesosternum with two arcuate and obliquely 

 diverging lines of transverse denticles. Petiole of abdomen nodose, constricted 

 behind, the front angles sharp, strongly and con fluently r ugoso-punetate, its 

 black hind margin with a scattered white fringe; second abdominal segment 

 strongly punctured, more closely so in front and laterally, its hind margin with 

 a conspicuous white fringe of simple and plumose hairs; remainder of abdomen 

 punctulate, and with a similar white fringe; venter punctured and fringed like 

 the dorsum. Coxae piceous, legs black, tibial spurs fuscous, hairs silvery white. 

 Wings lightly infumated, stigma black, veins blackish, pubescence black, third 

 submarginal obscure. 



Length 10.5 mm. 



Fig. 55 ; mesosternum. 



TRANS. AM. ENT. SOC. XXIX. OCTOBER, H)03 



