448 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 53 



on the propodeum. Mandibles 6-dentate. Propodeum as in Notan- 

 isomorpha. 



One female, United States, June 24, 1883. 



Type. — Cat. No. 20745, U.S.N.M., the female on a tag, a hind tibia, 

 the head and forewing on slide. 



THRIPOCTENUS AMERICENSIS. new species. 



Female. — Length, 0.75 mm. Club ovate, enlarged, distinctly 

 2-jointed and with a terminal spine; it resembles the club of the 

 trichogrammatid genus Tumidiclava. Black, the wings subhyahne; 

 a httle less than the proximal half of the abdomen orange yellow; 

 legs except coxae (rarely the femora at base) and the antennae pale, 

 more or less suffused with dusky. Scape slender; pedicel two-thirds 

 longer than wide at apex, longer than funicle 2; funicle joints nar- 

 rower at base, 1 subquadrate, 2 twice the size of 1, a httle longer 

 than wide. Club longer than the funicle and much wider, divided 

 a little before the middle; one minute ring-joint. Longest marginal 

 ciha of the forewing a fourth the greatest wing width; hind wing 

 nearly as wide across apex of venation as their caudal marginal fringes 

 are long, cihate discally. Abdomen subpetiolate, the ovipositor free, 

 inserted at middle, their valves tipping apex. ScuteUum rounded. 

 Body scaly. Mandibles apparently absent or else very pale and 

 edentate. Propodeum plane, the spiracle small, romid. 



From many females on a slide. Salt Lake City, Utah, swept from 

 alfalfa July 12, 1912 (C. N. Ainshe). 



Types.— Csit. No. 20729, U.S.N.M., the above females. 



As in the genotype of Paroinphale, one female bore in one antenna 

 but a single funicle joint which from its length was obviously made 

 up of the two united. This species differs from the description of 

 ParompJiale in lacking one ring-joint and dentate mandibles; more- 

 over, the antennae are clothed but sparsely with very minute setae, 

 not long hairs. Otherwise, it agrees with that description. The 

 genus is unstable, the antennae apparently now undergoing reduction. 

 The two funicle and club joints and the long postmarginal vein char- 

 acterize it. It is an Omphahne. 



CHEILONEURUS DACTYLOPH Howard. 



This is a species of AchrysopopTiagus Girault. 



CHEILONEURUS AMPLICORNIS Gahan. 



This is a CJirysopopJiagns, as is also lineatiscapus Gahan, though in 

 the latter the head is shorter from cephahc aspect. 



SYMPIESIS ANCYLAE. new species. 



Female. — Similar to guUatipennis, but the forewing is more or less 

 stained (quite a large cloud, faint) under the apex of the submarginal 

 vem, the tibiae and knees are brownish, the abdomen is reddish yel- 



