202 Illinois State Laboratory of Natural History 



finely punctured. Feet, including coxie, of the same color as 

 the abdomen. Winys hyaline, rather densely ciliate, radial 

 cell closed, areolet medium. 



Described from two females, one taken in a wheat field at 

 Mt. Carmel, 111., 27th May, 1885 (accessions number 1781), and 

 one taken at Champaign, 9th July, 1885 (accessions number 

 6422). 



SUBFAMILY INQUILIN.E. 

 Genus Synergus Hartig. 

 S. magnus n. sp. 



Head rufous-yellow, vertex and thorax entirely black, 

 abdomen rufous-yellow, except a narrow black stripe along the 

 tergum of the 21 segment, feet light yellow, except the tibiae 

 and tarsi of the hind pair which are infuscate; length 4 mm. 



Head: face coarsely striate, vertex and occiput micro- 

 scopically rugulose and with broad punctures; antennae black, 

 as long as the insect, 15-jointed, 3d joint but little longer than 

 the 4th. Thorax with coarse transverse wrinkles, parapsides 

 distinct throughout, median groove reaching the posterior ends 

 of the parallel lines; the lateral grooves appear more like 

 ridges and are short and oblique; shoulders coarsely wrinkled, 

 pleurae very coarsely aciculated below and very finely acicu- 

 lated above, with a smooth shining spot midway upon the 

 most prominent part. Scutellum with two small foveae and 

 coarsely rugose. Abdomen: first segment, as well as the peti- 

 ole of metathorax, coarsely wrinkled or fluted, 21 segment 

 occupying nearly the whole surface of the abdomen, ovipositor 

 sheaths long and projecting upward above the line of the ter- 

 gum, venter considerably projecting. Winys long, narrow and 

 slightly smoky, areolet medium. 



Described from a single specimen from ray private col- 

 lection that was reared from a gall of Ainpliibolips cookii at 

 Lansing, Mich. 



S. villosus n. sp. 



The front, above the insertion of the antennae, the vertex, 

 a broad stripe extending over the occiput to the collar, the en- 

 tire thorax, a broad blotch on second abdominal segment 



