60 PEOCEEDINGS OF THE XATIONAJ. MUSEUM. vol.6]. 



longer than the first intercnbitus ; legs slender; the posterior coxae 

 very short; spurs of posterior tibiae much less than half as long as 

 the metatarsus; abdomen ovate, depressed, narrow at base, very 

 broad on the third tergite ; first dorsal abdominal plate slender, dis- 

 tinctly broader at base than at apex, and more than three times as 

 long as broad at apex, wholly smooth and polished; second dorsal 

 plate rather triangular, narrow at base, but near the apex broadening 

 suddenly to the lateral margins of the abdomen, and like the follow- 

 ing tergites, smooth and polished; membranous margins along the 

 first and second plates very broad; hypopygium not reaching apex 

 of abdomen; ovipositor subexserted. Black; palpi yellow; clypeus 

 and mandibles brownish-black; antennae entirely black; tegulae 

 testaceous; wings rather whitish-hyaline; veins and stigma brown, 

 the latter with a very large pale spot in the membrane at base ; legs 

 testaceous, except all coxae, which are black, and the extreme apex of 

 posterior femora, the base and apex of posterior tibiae, and all the 

 tarsi, which are more or less fuscous; abdomen mostly deep reddish- 

 black on the basal half, black beyond. 



Male. — Like the female, except that the tegulae usually are 

 blackish. 



Type locality. — Rocky Ford, Colorado. 



ry;^^.— Cat.^No. 24004, U.S.N.M. 



Host. — Autographa hrassicae Speyer. 



Described from three female and one male specimens reared by H. 

 O. Marsh, from August 17 to September 3, 1914, under Chittenden 

 No. 953. 



Besides the type series the National Collection contains the follow- 

 ing material: one specimen reared from the same host as the type 

 series, at Brownsville, Texas, by R. A. Vickery, under Webster No. 

 6458; one specimen labeled "Las Cruces, N. Mex., June 25, 1895, 

 Cockerell ; " one from Southern California ; and one from Arizona 

 (C.F.Baker). 



20. MICROPLITIS PLUTELLAE, new species. 



Somewhat resembles melinae-, but differs in its smaller size, uni- 

 colorous stigma, darker legs, and the more prominent ovipositor. 



Female. — Length 2.2 mm. Face a little longer and narrower than 

 usual in this genus, and together with the vertex, temples, and cheeks, 

 finely punctate and opaque; antennae about as long as the body; 

 mesoscutum and scutellum closely punctate and dull; mesopleurae 

 punctate and dull anteriorly and below the finely crenulate longi- 

 tudinal furrow, highly polished above it ; propodeum coarsely rugose, 

 with a distinct median longitudinal carina, rather shining; stigma 

 long, distinctly longer than the metacarpus ; radius short, apparently 

 a little shorter than the first intercnbitus, and shorter than tlie 



