no. 1754. NEW SPECIES OF ICHNEl \l<>\ FLIES VIERECK. 381 



RHOGAS AUTOGRAPH/E, new species. 



Description. — Female and male, 4 mm. long; compared with a speci- 

 men of R. canadensis Cresson, from Ottawa, this differs as follows: 

 Face below antennae black only medially; mesopleura and meso- 

 sternum mostly black or blackish, the lower edge of mesopleura with a 

 border of a testaceous or ferruginous color; median longitudinal 

 carina of first and second dorsal segments not so prominent in the 

 female as in the male, being nearly lost among the adjoining striae. 



Type— Female and male, Cat. No. L3054, U.S.N.M. 



Type-locality. — Easton, Washington (A. Koebele). 



Other locality: Pullman, Washington. Bred from Autographa 

 gamma, var. calif ornica, July 27, 1009, Webster No. 4595, A.J. Hyslop, 

 collector. 



HETEROSPILUS PROSOPIDIS, new species. 



Description. — Very robust, thorax and abdomen each about one 

 and one-half times as long as wide, as seen from above, brownish 

 to yellowish in color. 



Female, 4 mm. long; ovipositor 0.75 mm.; antenna' 29-jointed; 

 notauli virtually wanting, nearly all of petiole of first discoidal cell 

 swollen and blackish, recurrent vein received by the cubitus disl met ly 

 beyond the first transverse cubitus, propodeum coarsely reticulated, 

 with an acute angle lit base formed by raised lines starting together 

 in the middle but terminating almost immediately beyond in the 

 rough sculpture; first and second dorsal segments entirely longi- 

 tudinally striated, the former in addition with a recurved elevated 

 ridge on each side, the latter with a faint transverse impressed line 

 near the apex, third dorsal segment basally longitudinally striate* I, 

 only half the segment being so sculptured in the middle, more later- 

 ally, rest of the segment smooth and polished, fourth dorsal segment 

 in the middle with the basal third longitudinally striate, laterally 

 with more, rest of the segment smooth and polished, as are the 

 remaining segments. 



Male very like the female ; antenna? 28-jointed : pseudost ignia longer 

 than wide or high and longer than the portion of the costa basad 

 thereto. 



Type.— Cat. No. 1lT)S7, U.S.N.M. 



Type-locality. — Kingsville, Texas. Reared from Bruchus in Pro- 

 sopis juliflora, June 0, 1000; one female and one male paratopotypes 

 with same data as type female and male ; thirty-five paratypes fe- 

 males, from Dallas, Texas (Hunter No. 1451, parasite of Bruchus 

 exiguus), Victoria, Texas (Hunter No. 1410, parasite of Bruchus 

 prosopis), (Hunter No. 1454), Forbing, Louisiana (Hunter No. I r>.">). 

 These paratypes range from typical to between 1 and _' mm. in length 

 and in color from almost entirely castaneous to almost entirely yel- 

 lowish; thirty-seven male paratypes with the same datfi as the female 

 paratypes and varying in the same degree, 



