232 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 49. 



areas irregularly sculptured, the median triangularly shaped area 

 with fine, scattered punctures; second tergite with the basal median 

 area rugose, the remaining part of the segment finely granular; the 

 following tergites shining, impunctate, except for the setigerous punc- 

 tures under a magnification of 35 diameters. Black; mandibles, 

 inner orbits, spot on the mesoscutum posteriorly, sides of the prono- 

 tum, dorsally, abdomen except the rectangular area of the fu^st tergite, 

 and small spots on the third, fourth and fifth tergites rufo-ferruginous; 

 legs rufo-ferruginous except the apical joints on the four anterior 

 tarsi, the apical third of the posterior tibiae and then- tarsi, which are 

 black; wings faintly dusky; venation pale brown, stigma and costa 

 darker brown; entire body and legs covered with fine white hair 

 which is especially dense on the posterior tibiae and tarsi. 



Hale. — Length 2 mm. Agrees in general with the female except 

 the head and the thorax are entirely black; the abdomen except the 

 second tergite is black; the four anterior femora, the base and most 

 of their tibiae and tarsi are dusky. 



Falls Church, Virginia. Described from one female (type) and one 

 male (allotype) recorded under Bureau of Entomology No. Hopk. 

 U. S. 111356 which refers to a note stating that this species is para- 

 sitic on Coleophora leucochry sella Clemens feeding on chestnut. 

 Material collected and reared by Carl Heinrich, adults emerging June 

 7, 1913. 



Type.— Cat. No. 18180, U.S.N.M. 



MICROBRACON HEMIMENAE, new species. 



The color and sculpture of the abdomen readily distinguish this 

 species from any other species which has been placed in this genus. 



Female.— Length 3 mm. Clypcus defined above by transverse 

 furrow which connects laterally with two small punctiform areas; 

 the face finely granular, vertex, posterior orbits and occiput polished, 

 impunctate; postocellar line about half as long as the oceUocular line; 

 antennae 26-jointed, first three joints of the flageUum subequal; 

 mesoscutum impunctate, polished; the suture between the scutum 

 and scuteUum finely, regularly foveolate; scutellum shining, impunc- 

 tate; propodeum shining, impunctate and without a median carina 

 or furrow; mesepisternum highly polished, impunctate; first tergite 

 with the length and width of the plate nearly subequal; the median 

 triangular area shining and not as densely sculptured as the lateral 

 areas, the furrows foveolate; second tergite uniformly coarsely irreg- 

 ularly reticulate on a granular surface, apical margin shining; third, 

 fourth, and base of the fifth tergite with distinct, uniform granulation, 

 which becomes sparser and less defined towards the apex of the 

 abdomen; ovipositor about two-thirds the length of the abdomen. 

 Black; abdomen except the first tergite and a small median spot on 



