414 DESCRIPTIONS OF ICHNEUMONID^ ASHMEAD. 



Crypturus albomaculatus sp. nov. 



Male. — Length 9 m . m . This species bears a superficial resemblance to 

 that just described, but it is slightly smaller and the markings, although 

 arranged similarly, are white, the legs being decidedly different. The 

 anterior and middle coxre and trochanters are white, immaculate ; the 

 posterior coxse being white with a large black spot on the inner and 

 outer side near base and another above the openings for the trochan- 

 ters; the anterior and middle legs are yellowish, the posterior femora 

 rufous with a black spot at apex, apical half of tibioe black, tarsi, ex. 

 cept terminal joint, white. Wings slightly dusky; venation as in pre- 

 vious species. 



Habitat. — Michigan. 



Described from two specimens received from Mr. Tyler Townsend. 

 This genus is parasitic on Polistes. Kirchner in his Catalogus Hymen- 

 opterorum Europce records having reared the European species Cryp- 

 turus argiolus from the pupae of Polistes gallica Linn. The only Cryp- 

 tid reared in this country from Polistes is Mesostenus arvalis Cr. and 

 and both of these genera are closely allied structurally. 



NEMATOPODIUS Grav. 

 Nematopodius texanus sp. nov. 



Male.— Length 6 mm . Black, opaque, shagreened, sparsely covered 

 with glittering white hairs, especially on the face and along the sides 

 of the body. Antenna} black, filiform, the third joint the longest; 

 mandibles and palpi pale; inner margin of eye slightly sinuate. Tho- 

 rax not grooved ; metathorax a little longer than high and not areo- 

 lated ; there are two delicate abbreviated keels at base just back of post- 

 scutellum and a faint one just over the spiracles, the latter evidently the 

 remnants of the first transverse keel. Legs rather slender, brown, the 

 posterior pair dark, the anterior pair more yellowish ; the anterior and 

 middle coxa? (except anterior pair basally and a lateral spot on the 

 middle pair), and second joint of all trochanters, yellow ; the apical 

 tibial spurs on middle and posterior legs are unusually long and diver- 

 gent. Abdomen long, linear, the apical margin of third and fourth 

 segments testaceous; the petiole is only slightly wider at apex than at 

 base, the spiracles being situated between the middle and the apex. 

 Wings hyaline; stigma and veins brown; areolet pentagonal, closed, 

 the submedian cell slightly longer than the median. 



Habitat. — Texas. 



Described from one specimen. This insect closely resembles certain 

 males in the Ophionid genus Limneria with the exception of the pen- 

 tagonal areolet, and which is the principal reason for my excluding it 

 from that genus. 



It is placed doubtfully in the genus Nematopodius, as it does not 

 agree in all the characters of this genus defined in Mr. Cresson's 



