THREE NEW HYMENOPTEROUS PARASITES 

 OF THE CABBAGE MAGGOT. 



In the course of some insectary work on the Cahhage Alaggot 

 (hirmg the summer of 1907, three new parasites were reared from 

 its puparia by R. L. Webster, at that time in charge of our breed- 

 ing experiments. These were named by Charles T. Brues, of the 

 Pubhc ^hiseum, ]\lihvaukee. Wis. His description of the species 

 follows : 



Figs. 99, 100, and 101 are from drawings of type specimens made 

 in the entomological laboratory. 



FAMILY DIAPRIID^. 



Loxotropa jiegomyicv, sp. nov. 



Female. Length 2 mm. Black, shining; legs including co.\;e, brown- 

 ish-yellow. Antennae rufo-piceous, with black club. Head very highly 

 polished; quadrate when seen from above and sliglitly narrowed behind, 

 the occiput margined. Front with a deep transverse impression at the 

 base of the antennje, and a distinct subemarginate frontal ledge upon 

 which the anntennae are inserted. Eyes rounded, rather small, clothed with 

 a few scattered erect hairs. Face below the antennae trapezoidal, higher 

 than wide, its surface very coarsely and irregularly wa'inkled; the lateral 

 margins distinctly raised to form a broad rounded rim or margin. Mouth 

 opening large, acutely margined on the sides; mandibles retracted; palpi 

 dull yellow. Antennae 12-jointed, the scape nearly straight, rather slender, 

 one-half as long as the flagcllum; pedicel obconical, nearly- twice as long 

 and much thicker than the first flagellar joint which is about one-half 

 longer than thick; following funicular joints nearh- quadrate, tlie apical 

 ones becoming moniliform and a trifle wider. Club very large, three- 

 jointed, nearly as long as the scape, the first two joints each about as 

 wide as long, the apical one conically pointed and one-half longer. Thorax 

 shining; pro- and metapleurse wooly. Mesonotum without parapsidal fur- 

 rows, but with more or less distinct broad parapsidal depressions. Scutel- 

 lum shining, with a single basal fovea; its posterior quadrate portion with 

 distinct grooved lines laterally. Metathorax irregular!}- rugose; deeply 

 emarginate behind; with a median carina which meets a strong transverse 

 one that follows the posterior margin; also with a lateral carina which 

 fades out anteriorly. Abdomen elongate, highly polished; toward the tip 

 obsoletely shagreened and furnished with a few bristly hairs. Petiole 

 less than two times as long as wide, deeph' and closely punctate; second 

 segment more than twice as long as the following together, gradually 



