1863.] 
361 
HEMIPTEKOLOGICAL CONTRIBUTIONS.— No. 2. 
BY P. B. UHLER. 
PACHYCORIS, Burm. 
P. complicatus, n. sp. 
Dull clay-yellow, the upper surface with rather coarse, deep, scat¬ 
tered punctures, arranged in an irregularly reticulated manner, and 
connected together by the same carbon-black color as that which covers 
them. Head with irregular, scarred, black punctures, arranged in 
a row immediately each side of the tylus; the surface rather regularly 
convex, the apex pale clay-yellow, the base greenish-black, lateral mar¬ 
gins sinuated, smooth, yellow, the under side strongly punctured with 
greenish-black, somewhat in rows, with the margins of the bucculas and 
a few small spots yellow, bucculm very narrow, long; antennge slender, 
black, the basal joint and origin of the second yellow, the second joint 
a little longer, slenderer and smoother than the third; rostrum reach¬ 
ing between the posterior coxge. Thorax very convex, the lateral mar¬ 
gins smooth, yellow, sinuated, the posterior margin truncated, the an¬ 
terior surface obscured with blackish, the punctures coarser than upon 
the head and arranged somewhat transversely, the humeri rounded, 
but not prominent. Corium black upon the posterior portion, the ex¬ 
terior apical and interior edges yellow, smooth; membrane with a slight 
tinge of brown. Scutellum a little flattened before the tip, the tip 
hardly truncated, the lateral margins anterior to it almost sinuated, the 
edge smooth, yellow, upon the middle a faint, slender, yellowish, lon¬ 
gitudinal line. Beneath yellow, with deep, black punctures, which are 
grouped together in spots, particularly at sides, disk of the venter im- 
punctured, bearing two suMriangular fuscous spots each side upon the 
silky areas, lateral margins of the segments yellow, impunctured. Fe¬ 
mora yellow, with groups of blackish punctures, tibiae rufous, with 
fuscous tips, tarsi almost entirely blackish. 
Length 11 millims. Humeral breadth 6t millims. 
Hah. Mexico, (Lieut. Couch ) 
SYMPHYLUS, Dallas. 
S. infamatus, n. sp. 
Reddish-brown, opake, becoming darker posteriorly. Head triangu¬ 
lar, a very little sinuated before the eyes, with rather coarse, deep, oc- 
