LIBRARY

276 COLLEGE ENTOMOLOGY
Ethiopian regions, but is truly cosmopolitan in scope. There are five or more
subfamilies and many important genera. Among the latter may be mentioned
the following: lElia Fab., Acanthosoma Curtis, Brochymena Amyot and Serville,
Chlorochroa Stal, Cosmopepla Thomas, Euchistus Dallas, Eurydema
Laporte, Eusarcoris Hahn, Murgantia SHil, Nezara Amyot and Serville, Pentatoma
Olivier, Perillus Stal, Podisus Herrich-Shreffer, Sericoris Fallen, Strachia
Hahn, Thyallta Still.
The most important North American species is probably the harlequin cabbage
bug, MUTgantia histrionica Halm" a black and red species often also
FIG. 91. Eggs of the consperse stink bUg, Euchistus conspersus
Uhler. (From Insecls of Western North America.)
marked with white, yellow, and orange, 8-11 mm. long, which is a pest of a
wide variety of plants, including cabbage and other cruciferous 1 plants.
Other important species in this country are: the conchuela, Chlorochroa ligata
(Say); Say's plant bug, C. sayi Stal; Euchistus impicUventris Stal; Cosmopepla
bimaculata (Thomas); Thyanta custator (Fab.); Nezara viridula (Linn.), also
reported in Europe, Japan, India, Africa, Australia, and New Zealand; and
the green soldier bug, AcrQsternum hilare (Say), Among the beneficial predacious
forms may be listed the members of the genus Brochymena and particularly
the widely distributed B. arborea (Say) and B. 4-pustulata (Fab.); the
anchorage bug, Stire/1us anchorag'J (Fab.), the bioculate predacious bug,
Peril/us bioculatus (Fab.), and members of the genus Apateticus. especially
A. cynicus (Say) and A. crocatus (Uhler).
Certain species are responsible for carrying fungous diseases of plants in
tropical regions.
1 ButT ada pieta Fab. is a pest of cruciferous crops in India. and two species of EU'rydema
feed on similar crops in Japan.