10 PROCEEDIXGS OF THE NATIONAL MUSEUM. vol.65. 



APHEUNUS PERPALLIDUS, new species. 



This species differs from all of the other yellowish North Amer- 

 ican species except cmreiis Gahan and automatus Girault by having 

 the ciliation of the forewing basad of the hairless line very sparse 

 and coarse. It differs from both aureus and automatus by having 

 the first and second fimicle joints not transverse but each about as 

 long as broad, the third funicle joint a little longer than broad, and 

 the ovipositor not at all exserted. 



Female. — Length, 0.9 mm. Antennal club not much thicker than 

 the third funicle joint and about four times as long as that joint; 

 eyes bare or practically so; frons, mesonotum and scutellum dis- 

 tinctly finely shagreened; marginal vein of the forewing slightly 

 shorter than the submarginal or subequal to it; discal ciliation of 

 forewing distacl of the hairless line moderately dense and short; 

 basad of the hairless line sparse and irregular, scattered over most 

 of the area behind the marginal vein and much coarser and longer 

 than the cilia beyond the hairless line. Body above very pale green- 

 ish yellow; beneath and including all legs nearly white; wings hya- 

 line; venation pale yellowish; antennae pale. 



Male. — Agrees with female in every way except for the sexual ap- 

 l^aratus. 



Type-locality. — Sioux City, Iowa. 



Type.—Q^t. No. 26179, U.S.N.M. 



Described from five females and two males reared by C. N. Ainslie 

 from an aphid on elm. Tj'pe female, two paratype females and a 

 broken paratype male card-mounted. Allotype male and three para- 

 type females mounted in balsam. 



APHELINUS MALI (Haldeman). 



Eriophilns mali Haldeman, Peuna. Farm. Journ., Aiii:., 1S51, p. 131. 

 ApheUnus mail Howaed, Rept. U. S. Com. Agr. (1880), 1881. p. 356. 

 Aphelimcs varicornis GiRAta.x, Psyche, vol. 16, 1909, p. 29. 



Three cotype specimens of varicornis Girault mounted on slides are 

 in the National Collection and apparently differ in no way from 

 specimens of mall Haldeman. The wrings show no more infuscation 

 than do those of mail., and the ciliation of the forewing proximad of 

 the hairless streak is practically the same despite Girault's statement 

 to the contrary. 



APHELINUS SEMIFLAVUS Howard. 



ApheUnus semiflavus Howard, Ent. News, vol. 19, 1908, p. 367. 

 ApheUnus brevipcnnis GiRAur/r, Descriptiones Stellaruni Novarum, 1917, p. 

 18. 



Types of both the above named species are in the National Col- 

 lection and have been compared. Except for the abbreviated wings, 

 the types of hrcvipennis differ in no way from typical semifavus. 



