136 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



except the first; anal process piceous; wings hyaline, veins piceous; 

 costal area opaque. Length If line. a 



Saunders drew his description of the genus from this species, and 

 as the characters are mainly specific the3 T must be incorporated in 

 the specific description. 



Maxillae with basal joint short, robust; palpi elongate, subcylin- 

 drical, pubescent, denexed. Mandibles elongate, ensiform. Anten- 

 nae with basal joint short, apically dilated, with internal angle porrect; 

 second transverse, very small; third produced internally in a com- 

 pressed, uniform flabellum with apex subobtuse; fourth lamelliform, 

 very similar, almost equal in length, inserted at base of the preceding, 

 and recumbent upon it. Wings with costal margin thickened to 

 middle; radius abbreviated, the area between subcosta and radius 

 clouded; medius strongly sinuate, almost attaining external margin 

 of wing; cubitus fine; the three anal veins simple, thickened at base, 

 beyond middle attenuate. Legs elongate, slender; four anterior 

 trochanters abowt equaling femora, posterior pair shorter; tibiae 

 slender, elongate, with apex hardly dilated; tarsi dark, with apical 

 angles of each joint prominent', base slender; joints diminishing in 

 length, apical joint rounded. 6 



2. PSEUDOXENOS KLUGII Saunders (1852). 



Xenos Jdugii Saunders, 1852. 

 Pseudoxenos hlugii Saunders, 1872. 



Host. — Hoplomerus (Odynerus) Isevipes Shuckard ; Epirus, May. 

 This species was very briefly described as follows : 



a Niger; antennis, palpis, elytris, pedibusque brunneis; abdomine flavescente, 

 segmento singulo, basali excluso (septem), disco dorsali ventralique vitta transversali 

 abbreviate brunnea; processu anali piceo; alis hyalinis, neuris piceis; area cos'tali 

 opaca. Long. corp. 1? lin. (Saunders, 1872, 44). 



b Palpi articulo basali brevi, robusto, secundo elongato, subcylindrico, hirto, de- 

 flexo. Mandibula? elongatse, ensiformes. Antenna? 4 - articulata? ; articulo basali 

 brevi, apice dilatato, angulo interno porrecto; seeundo transversali, minimo; tertio 

 in ramum internum subrectum, compressum, uniformem, apice subobtusum, pro- 

 ducto; quarto lamelliformi, simillimo, longitudine fere coaequali, ad basin prsece- 

 dentis inserto, in ilium recumbente, spatio libero vix basi relicto. Ala? costa? di- 

 midio basali inspissato; neura postcostali abreviata, area costali lata nebulosa, ultra 

 neuras producta, neura externo-media valde sinuate, ultra medium alee tenuissima, 

 ad marginem exteriorem vix attingente; area intermedia superior neura prima in- 

 sulate duplicate abbreviate; secunde insulate elongate, valde sinuate, simplice, de 

 margine exteriori usque ad neuram externo-mediam basin versus fere attingente; 

 area intermedia inferior neure prime (subexterno-medie) gracillime, aliisque tribus 

 simpbcibus, basi inspissatis, ultra medium tenuissimis; quarum ultima analis. Pedes 

 omnes elongati, graciles; trocbanteres anteriores 4 femoribus fere coaequales; postici 

 2 breviores; tibia? tenues, elongata? apice vix dilatatae; tarsi nitidi, articulis apice 

 angulis prominulis, basi tenuissimis; articulo primo paulo longiore, reliquis longi- 

 tudine diminuentibus, apicali rotundato integro. Puparium, operculo oculorum situ 

 fenestralis paucis minutissimis instructo. (Saunders, 1872, p. 44.) 



