1917] Gibson—K ey to the Species of Leptoglossus Guér. 71 
It ranges from Maryland southward through Florida and Ala- 
bama. 
Leptoglossus clypealis Heid. 
Leptoglossus clypealis Heid., Pro. Ent. Soc. Washington, xii, 
p. 195, 1910. 
The apex of the head terminating in a spine is the character 
which readily distinguishes this species from all others of the genus. 
This is a western species occurring from Nebraska to Oregon, 
south through California, Arizona and New Mexico. 
Leptoglossus corculus Say. 
- Anisoscelis corculus Say, Ent. of N. A., Vol. 1, p. 326, 1832. 
Theognis excellens Mayr, Verh. Zodél.-bot. Ges. Wein., xv, p. 
434, 1865. ; 
Together with the following species corculus has the fourth joint 
of the antennz equal to or shorter than the third. This character 
may be used to separate these two species. Corculus differs 
markedly from occidentalis in having the dilation of the hind 
tibize lanceolate and reaching nearly to the apex of the tibize, while 
the dilation in occidentalis is foliaceous and much shorter. 
It is known to occur from New Jersey southward through Georgia, 
and west to Colorado. 
Leptoglossus occidentalis Heid. 
Leptoglossus occidentalis Heid., Pro. Ent. Soc. Washington, 
xii, p. 196, 1910. 
Following his description of the species Mr. Heidemann states: 
“This species has frequently been determined as L. corculus Say— 
_ but by close observation the differently shaped expansion of the 
hind tibiz will distinguish it at once.” The expansion is shorter 
and foliaceous. 
The known distribution is from Colorado west to the coast and 
from California north to Vancouver. 
Leptoglossus oppositus Say. 
Anisoscelis oppositus Say, Ent. of N. A., Vol. 1, p. 326, 1832. 
Anisoscelis tibialis H. S., Wanz. Ins., Vol. 7, p. 12, 1844. 
The distinguishing characters for this species are the smooth 
lateral-posterior margins of the thorax and the unmarked elytra. 
