182 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.58. 



Types.— Cat. No. 20463, U.S.N.M., three males on a tag and 

 eight females on tags. 



CYNIPOIDEA. 



PSILODORA CULTRA, new species. 



Female. — Length, 3.6 mm., excluding the ovipositor, which is 

 nakedly extruded for the length of the abdomen. Kuns to this 

 genus in Kieffer's (1902) table to the Cynipoidea. 



Differs from labeled specimens of Eucoila im'patiens Say mainly 

 in having the extruded ovipositor and hardly otherwise. ''Cup" 

 of scutellum melon-seed shaped (like this kind of a seed balanced 

 broad side up upon a short stalk), its distal, obtuse end with a large 

 excavation, two round punctures on its lateral margin at middle; sur- 

 rounding part of scutellum rugulose. Body glabrous. A line of several 

 punctures distad on each side of scutum; no sutures or furrows on 

 scutum. Head (cephalic aspect) longer than wide, the moniliform 

 13-jointed antennae inserted near the vertex, above the middle. 

 Legs and first 6 joints of the antennae reddish brown. Funicles 

 distinctly ^ longer than wide, the pedicel globular, smallest; other 

 flagellum joints rounded, ovate to ovate, the club about 8-jointed, 

 gradually widening distad, the distal joint as long as funicle 1. Fore 

 wings naked except for exceedingly minute, sparse setae on the disk. 

 Meson of propodeum oval, concaved, the concavity bounded by a 

 stout, obtuse carina along each side. 



Described from one female, Urbana, Illinois. 



Type.— Cat. No. 20846, U.S.N.M., the female on a tag. 



(ALLOTRU) KLEIDOTOMA AVENAE Fitch. 



Two males, three females reared from dipterous larvae, L^rbana, 

 Illinois. Compared with male type. The scutellum is long-s'triate, 

 the cuplike elevation small, oval near apex but connected with base 

 by an attenuation like a median carina; just at its broader end 

 (distad), it bears a round fovea; meson of propodeum glabrous, 

 concaved, the area broad, limited by a ridge down each side. Vertex 

 finely cross-lined. Flagellar joints of the male long-striate, over 

 twice longer than wide. 



MICROSTILBA AMERICANA, new species. 



Female.- — Length, 0.8 mm. Piceous, the wings hyaline, the vena- 

 tion piceous. Antennae subfiliform, the club however, distinct, 

 5-jointed, the joints oval, joint 5 longest nearly twice longer than 

 wide; funicle 1 twice longer than wide, shorter tlmn the club joints a 

 half the width of the club, 2-5 subequal, each a little longer than wide 

 at apex. Polished, parapsidal furrows carinatiform, diverging nearly 

 to apex, then converging, widely separated laterad. Pedicel subequal 

 to club 1. Petiole short, rugulose; base of abdomen dorsad cari- 



