384 AMERICAN HYMENOPTERA. 



dullish; mesopleura mostly without sculpture and polished, separated from the 

 sculptureless bisected mesostenium by a deep furrow; mesosternum yellowish- 

 testaceous as is the lower edge of the mesopleura; metathorax ferruginous above' 

 its pleura brown and crudely sculptured and punctured, the metauotum rugulose 

 with a median ill-defined soraewiiat diamond -shaped area, less than one-third as 

 wide as the metauotum and open behind, wings infuscated or smoky, the nerv- 

 ures and stigma blackish; anterior and middle coxse and trochanters blackish, 

 the posterior ones reddish. 



Abdomen. — Mostly dQll orange color, the sutures mostly citron-yellow, dorsal 

 aspect of first dorsal segment about one and one-half times as long as wide at 

 apex, longitudinally striate and separated from the sides by strong carinje, one 

 on each side; the second dorsal segment nearly three times as wide as long, partly 

 yellow and with a semi-circular radiately striate area on its basal half, the remain- 

 ing portion of the segment smooth and shining as are the remaining segments. 



Type. — University of Kansas. 



Type locality. — Fort Apache, Navajo Co., Arizona. 



One specimen, taken between August 8-26, 1897, by F. H. Snow. 



Doryctes feiniir-riibriim n. sp. 



9. — 8.5 mm.; ovipositor 4.5 mm. — Very like apacheus from the 

 description of which it differs as follows : 



Head. — Essentially as in apacheus, antennae 56-jointed. 



Thorax. — Scutellum proper separated from the mesonotum by an oblong exca- 

 vation that is longitudinally divided by a ridge and foveate, the scutellum proper 

 shining or polished and sparsely finely punctured ; mesosternum and mesopleura 

 posterior to the oblique rugulose impression as well as the metathorax, middle 

 coxae, posterior coxae and trochanters, and all but the black tips of the posterior 

 femora more or less ferruginous, metanotum rather distinctly areolate with 

 spiracular, middle pleural, external and external median areas differentiated, 

 the greatest width of the areola about as great as one-third the width of the 

 metauotum. 



Abdomen. — Ferruginous, all but dorsal segments 1 and 2 polished, the former 

 rugopunctate, the latter mostly radiately striate, rugose at extreme base. 



Type. — University of Kansas. 



Type locality. — Thomas' Ranch, Oak Creek Canon, 20 miles 

 southwest of Flagstaff in Coconino Co., 5000 ft., Arizona. 

 One specimen, taken in August by F. H. Snow. 



Iphiaulax triangiilifera n. sp. 



Third, fourth and fifth dorsal abdominal segments rugose. J. — 6.5 mm. 

 Head. — Black, antennae blackish-brown ; mostly as in miliinris, but the scape 

 shining, nearly twice as thick as the iiagellum in the middle, its margins pro- 

 duced, sublaminate, pedicel about one-third as long as the scape, about two- 

 tbirds the length of the first joint of the flagel, flagel over 44-jointed, its joints 

 subequal. 



Thorax. — Smooth and polished, seemingly sculptureless, pro- and mesopleura 



