22 
throughout its full extent; the narrow expanse either side of furrow 
granulate; remainder of met an o turn coarsely rugose. Abdomen as 
long as head and thorax together; fourth segment longer than .second 
and third together; third twice as long as second; fifth equal in length 
to second. Entire thorax with close white pile. Antenna 4 about as 
with preceding species, except that joint 1 of funicle is longer than 2 
and nearly twice as long as pedicel; club of stigmal vein triangular; 
claw not distinctly differentiated. Color, black; scape, honey-yellow : 
all legs brown, lighter at joints; femora and tibiae, dark in the middle. 
All coxae shagreened. 
Male, — Length, 2.1 mm.; expanse, 3.2 mm. Petiole slightly rugose; 
distinctly longer than bind coxae; antenna' as with preceding species, 
except that joint 1 of the funicle is longer than 2, and 2 is longer than 
3, while club is not so long as two preceding joints together. 
Described from 8 females and 1 male reared April 27 and May 17, 
1888, from the dry stems of Triodia cnprea collected on the Virginia 
side of the Potomac River, near Washington, I). 0., by Theodore 
Pergande. 
r -ml^ 
Flu. <i. — Evoxyaoma Ditto, (Sannders). 
Genus EVOXYSOMA Ashmead. 
Evoxysoma vitis (Saunders) (tig. 9). 
Isosoma vitis, Saunders, Can. En torn. 1870, vol. n, p. 26. 
Female. — Length, 3 mm.; expanse, 5.(3 mm. Head, pronotum, and 
mesonotum closely and rather faintly uinbilicate-punctate; metanotum 
with a broad central longitudinal depression with convex sides, deli- 
cately shagreened in center; mesopleura below teguhe delicately sha- 
greened; all coxai also shagreened. Abdomen as long as head and 
thorax together; joint 4 as long as 2, 3, and 5 together; 2, 3, 5, and 
subequal. Antennae snbmouiliform ; funicle joints 1 and 2 nearly equal 
in length, 1 slightly longer; remaining joints decreasing in length very 
slightly; club nearly equal to three preceding joints together; head and 
