422 DESCRIPTIONS OF ICHNEUMONID.E — ASHMEAD. 



Subfamily OPHIONIK/E. 



THYREODON Brull<§. 



Thyreodon texanus sp. uov. 



Male. — Length 25 mm . Brownish-yellow; the face, palpi, antennae 

 and legs more yellowish. Wings fuliginous ; the stigma as in Ophion, 

 yellow ; the third discoidal cell one-third longer than in T. morio. Head 

 impunctured; clypeus separated at the sides by deep foveas at base, 

 the anterior margin arcuate; maudibles terminate in two black teeth. 

 Thorax moderately densely punctulate; scutellum with lateral keels; 

 metathorax gradually sloping off behind, rugose, the disk posteriorly 

 a little concave and the rugosities more transverse; there is a trans- 

 verse keel at the base and the spiracles are large, linear, and surrounded 

 by a groove. 



Habitat. — Texas. 



Described from one specimen, easily recognized by its peculiar color 

 and the fuliginous wings. It comes nearest to Thyreodon ornatipennis 

 Or. described from Orizaba, Mexico. The large stigma might exclude 

 it from the genus Thyreodon. 



NOTOTRACHYS Marshall. 

 (?) Nototrachys amiulicornis sp. nov. 



Female. — Length 12 to 14 mm ; ovipositor 2 mm . Male 17 mm . Ferruginous, 

 coarsely rugosely punctate, the face and sides of body covered with a 

 white pubescence; the face, cheeks, and anterior and middle legs yel- 

 lowish, the middle tibia} at apex armed with two spines and an abbreviated 

 or short one; the second joint of hind tarsi white. The antennas are 

 porrect, slender, filiform, the length of the insect, the apical two thirds 

 black; in the female joints 24 to 31 are white or yellow ; in the male 

 usually only joints 28 to 31 are so marked, although one of the 

 males has joints 25 to 31 yellow. The apex of metathorax is pro- 

 duced into a neck two-thirds the length of the hind coxas, at the base 

 are two semicircular areolets, the rest of the surface is rugose. The 

 abdomen is thrice the length of the head and thorax together, strongly 

 compressed and very slender in both sexes, the petiole and second 

 segment are slender, linear, the second segment a little longer than the 

 petiole. Wings hyaline; stigma and veins dark-brown, the venation as 

 in Ophion. 



Habitat. — Texas. 



Described from four specimens, two male, two female, in Belfrage 

 Collection. On account of the two apical spurs on middle tibiae, this 

 species does not properly belong to the genus Nototrachys, and it is 

 placed here only temporarily. 



