OF WASHINGTON. 161 



This species comes nearest to A. limenitidis Riley, and might 

 easily be confused with it ; but the paler trochanters, color of 

 anterior legs, pale costal and internal nervures, the sculpture of 

 the first and second abdominal segments which is coarser, while 

 the second segment is proportionately longer, readily separate 

 the two species. 



(31) Apanteles parorgyiae, sp. n. 



9- Length 25 mm. Black; palpi, tegulae, costal nervures toward base 

 and median and submedian nervures, white ; scape, except apex, pedicel, 

 mandibiles, except tips, legs including coxse, abdomen beneath, lateral 

 margins of all dorsal segments, the third dorsal segment entirely (rarely 

 with a dusky spot at middle) and large lateral spots on fourth and usually 

 small lateral spots on fifth segment, yellow. Sometimes the third dorsal 

 segment except two small lateral spots, as well as the following segments, 

 are wholly black. 



Head smooth, polished; the face sparsely minutely punctate but still 

 shining, with a slight median carina above, more distinct in male. 



Thorax above closely confluently punctate, opaque, sericeous, except a 

 small space on the shoulders where the punctures are separated and the 

 scutellum; mesopleura with a large shining impunctate space on disk but 

 anteriorly and extending on to the mesosternum the surface becomes 

 rather closely punctate; metespisternum smooth, polished, with a large 

 fovea ; metapleura and metanotum rather coarsely rugose, the latter 

 with a sharp well-defined median carina; hind coxae sometimes dusky 

 at base. 



Wings hyaline; costal nervure towards apex, parastigma, stigma and 

 other nervures except as already mentioned light brown ; first abscissa of 

 radius a little shorter than the first transverse cubital nervure. 



Abdomen a little longer than the thorax; plate of first segment trape 

 zoidal; it, as well as the second segment, longitudinally lineately rugose; 

 the third more or less feebly sculptured at base; the following segments 

 smooth, polished, the second segment is a little shorter than the third, 

 the fourth about half as long as the third. 



J 1 . Length 1.5 mm. Besides the great difference in size, this sex 

 differs greatly in other respects. The antennae are very much longer than 

 the body, the flagellum being brownish, with each joint indistinctly di 

 vided into two joints ; the mesosternum and mesopleura anteriorly are 

 more sparsely punctate; the metathorax is without the distinct median 

 carina; the plate of first abdominal segment is rugoso-punctate, while 

 the second segment is shallowly vaguely punctate or almost smooth ; 

 otherwise in color and venation of front wings, it agrees with the female. 



Hab. Canobie Lake, N. H. 



Described from $ 9 specimens bred by Dr. Geo. Dimmock, 

 from larva of Spilosoma (?) virginica. Bred specimens are 

 also in the National Museum reared from Parorgyia clintonia. 



