23 
thorax with close, fine, white pile, which is also present on terminal 
joints of abdomen. Color black, antennal scape yellowish; all cox 
black, the front pair somewhat yellowish at tip; front and middle legs 
except cox honey-yellow; hind femora brown in middle, honey-yellow 
at either end; hind tibiw honey-yellow, slightly brownish in middle; 
base of abdomen below brownish; stigmal club well rounded, claw 
straight and short. 
Male.—Petiole thick, shagreened, longer than hind cox, as long as 
first abdominal joint; antenne as with male of Hurytomocharis triodia, 
except that the funicle joints are somewhat more strongly pedicellate. 
All legs, excepting middle and hind cox, honey-yellow. 
Described from six females and four males apparently reared from 
grape seeds by C. V. Riley. The specimens are all in the old Riley 
collection, together with five shriveled grapes from which they have 
emerged. The series is probably the one referred to in the Second 
¥F 1G. 10.—Decatomidea cooki Howard. 
Report on the Insects of Missouri (p. 92), where it is stated that they 
were reared from infested grapes received in August, 1869, from A. S. 
Fuller, of New Jersey, and obtained by him from Canada. The evi- 
dence in favor of the phytophagic habit of the species, as given by 
Saunders in the Canadian Entomologist, is apparently conclusive, but 
there is still a chance that this species and the next one are parasitic 
or inquilinous. They hardly belong structurally to the phytophagie 
group of the Eurytomine. 
Genus DECATOMIDEA Ashmead. 
Decatomidea cooki n. sp. (fig. 10). 
Female.—Length, 3.6 mm; expanse, 5.8 mm. Head, pronotum, and 
mesonotum densely and rather coarsely and regularly umbilicate pune- 
tate; metanotum with a very broad central, slightly emarginate, and 
