12 
Isosoma hageni n. sp. 
Female. — Length, 4 mm.; expanse, 7 mm.; head and thorax rather 
coarsely reticulate-punctate, the interspaces of the reticulations finely 
granulate. Metanotuni with three faint subparallel longitudinal sub- 
median carina?. Pronotal spot moderately large and rather distinct. 
Abdomen a little shorter than the thorax, second segment occupying 
about one-third of its dorsum; segments 3, 4, 6, and 7 subequal; seg 
ment 5 a trifle longer. Petiole rugose, stout; hind coxae faintly sha- 
greened. Antenna 1 not in good condition for study in the two specimens 
at hand — broken in one and with the pupal sheaths in the other. 
Stigmal club, rounded; spur distinct, straight. 
Color, black; apical third of front femora and tibia and tarsi of the 
same legs, honey-yellow; knees and tarsi of middle and hind legs also 
honey-yellow; pubescence of entire body short and sparse, light in 
color. 
Fio. 2. — Itotoma agrottidi* Howard. 
Described from two female specimens from the collection of the 
Museum of Comparative Zoology, Cambridge, Mass., labeled in the 
handwriting of Dr. Hagen, " In quick grass, Boston, March, 1883, H. H." 
Isosoma agrostidis n. sp. (fig. 2). 
Female. — Length, 2.8 mm.; expanse, 5.2 mm. Head and mesothorax 
finely shagreened and also very sparsely and finely rugulose; meta- 
notuin somewhat coarsely rugulose and without a median furrow, but 
with a rather faint median longitudinal carina; mesoscutellum rather 
rounded at apex, not sharply pointed; axillar and parapsidal sutures 
nearly meeting; pronotal spot evident but small, scarcely seen from 
above; first funicle joint of antenna 1 not twice as long as second; 
remaining joints subequal, somewhat rounded; club joints very dis- 
tinct, terminal one acuminate and styliferous. Abdomen short and 
stout, considerably shorter than thorax; subglobose in shape, its sec- 
