.378 



PSYCHE. 



[January 1S93. 



i. M. aspidiscae sp. n. $ $ .—Length 1.3 

 to 1.5 mm. Black, shining, but microscopi- 

 cally punctulate, pubescent; two basal joints 

 of antennae and sometimes base of the third 

 and legs brownish-yellow; sometimes more 

 or less of the femora, especially toward base, 

 posterior tibiae and tarsi fuscous or dusky in 

 female; abdomen, in female with three basal 

 segments pale, in male with only two, oval, 

 black or brown-black. Antennae 14-jointed, 

 as long as the body, the flagellar joints very 

 gradually subequal after the second, the first 

 and second the longest, about equal. Thorax 

 without furrows, the scutellum polished, the 

 metanotum with a median carina. Wings 

 hyaline, the stigma and nervures pale brown- 

 ish yellow, the first submarginal and first 

 discoidal cells confluent. 



Hab. — United States. 



Types in National museum and Coll. 

 Ashmead. 



This species seems to be a common 

 parasite on Aspidisca splendoriferella 

 Clem., a small case bearing Tineid on 

 apple. Those in the National museum 

 were reared in 1S79, and the same is 

 figured in Prof. Comstock's Report for 

 the same year, pi. 2, fig. 2, h. My 

 specimens were reared from this Tineid 

 in 1888. 



2. M. minuta sp. n. $. — Length 1 mm. 

 Black, shining, faintly pubescent ; flagellum 

 brown-black, slightly incrassated toward the 

 tip, the 7 terminal joints short, scarcely twice 

 as long as thick; scape, pedicel, three basal 

 abdominal segments and the legs, including 

 all the coxae, yellow; tarsi fuscous. 



Wings hyaline, the stigma fuscous, other- 

 wise the venation pale yellow; the first sub- 

 marginal and first discoidal cells distinctly 

 separated. 



Hab. — Jacksonville, Florida. 



Types in Coll. Ashmead. 



Comes closest to M. aspidiscae, but 

 its smaller size and the distinctly sepa- 

 rated first submarginal and first dis- 

 coidal cells readily distinguish the 

 species. 



3. M. lithocolletidis^. n. <J $. — Length 

 1.5 to 1.6 mm. The head and thorax feebly 

 rugose or punctulate, subopaque. Antennae 

 filiform, 14-jointed, longer than the body, 

 pubescent; scape beneath and pedicel at apex 

 and beneath, yellowish; flagellum black or 

 brown black, the joints to the last subequal, 

 the last longer than the preceding; metano- 

 tum with a grooved line at the middle; face, 

 basal half of abdomen and legs yellow or 

 brownish yellow ; hind tarsi fuscous. Wings 

 hyaline, the costa and stigma fuscous, the 

 other nervures yellowish ; the first submar- 

 ginal and the first discoidal cells not entirely 

 separated. The first and second abdominal 

 segments have a central longitudinal carina 

 or fold. 



In the male, the head, thorax and apical 

 half of abdomen are fuscous, while the orbits 

 (broadly), lower part of cheeks, the face, 

 basal half of abdomen, and the legs are 

 yellow. 



Hab. — Washington, D. C. and Jack 

 sonville, Florida. 



Types in National museum and Coll. 

 Ashmead. 



The single specimen in the National 

 museum was reared from a Leaf-miner 

 on locust, Lithocolletis ornatella 

 Chambers. 



4. M. grapholithae sp. n. $. — Length 

 1.5 mm. Head and thorax black, shining, 

 although finely punctate and sparsely seri- 

 ceous. Abdomen brownish-piceous, blackish 

 towards apex, pale yellowish towards base; 

 legs pale brown, the femora towards base and 

 hind tibiae and tarsi, dusky or fuscous. 



