1024 



FAMILY XXXV. — NERTHRID^E. 



territory. 1 "" They were long listed under the generic name 

 Galgulus, which was preoccupied. 



KEY TO EASTERN' SPECIES OF GELASTOCORIS. 



(i. Front of head below eyes as wide or wider than long; claws of front 

 legs contiguous, shorter than the tarsal joint, the claws and tarsus 

 united one-half as long as the tibia; second joint of hind tarsi 

 about one-third longer than third ; general color clay-yellow, 

 clouded medially with fuscous-brown or black; form broadly oval. 



1166. OCULATUS. 



aa. Front of head longer than its greatest width; claws of front legs 



approximate but not contiguous, longer than the tarsal joint, the 



claws and tarsus united three-fourths as long as tibia; general 



color dark with white or gray markings. 



b. Edge of lateral expansion of base of corium entire; connexivum 



broadly exposed, the basal half of each segment black; second 



joint of hind tarsi about one-half longer than third; form broad- 



ly oval. 



1167. BARBERI. 

 bb. Edge of lateral expansion of base of 

 corium denticulate; connexivum 

 narrowly or not at all exposed ; 

 second and third joints of hind 

 tarsi subequal in length. 

 c. Pale spots on elytra not well de- 

 fined ; sides of front half of pro - 

 notum not subparallel; form ob- 

 long-oval. 1168. SUBSIMILIS. 

 cc. Pale spots on elytra prominent, 

 well defined; sides of front lobe 

 of pronotum subparallel ; form 

 broadly oval. 1169. variegatus. 



1166 (1407). Gelastocoris oculatus 

 (Fabricius), 1798, 525. 

 Broadly oval, subdepressed. General 

 color above dull clay-yellow, sometimes 

 nearly uniform, more often with the 

 middle of pronotum, scutellum and apical 

 half of elytra fuscous-black or -brown; 

 under surface in great part fuscous, the sides paler; legs dull yellow 

 more or less distinctly annulate with fuscous; spines of tibia? and tarsal 

 claws piceous-brown ; expanded flanks of pronotum dull ivory-white be- 

 neath. Eyes divergent outwardly. Front lobe of pronotum convex at 

 middle and with five or six irregular ridges or tubercles, two or more of 

 these extending back onto hind lobe; humeral angles expanded and broad- 

 ly rounded. Scutellum short, with an obtuse median ridge and a tubercle 

 each side. Elytra slightly surpassing tip of abdomen; edge flattened 

 basal expansion of corium crenulate. Connexivum narrowly exposed, the 



Fisr. 205. X 6. (After Lugger). 



'""Champion (1901, 349) lists G. vicinus Champ., a neotropical species, from 

 "Southern and Western United States," but there is no definite record of its or 

 currence east of the Mississippi. 



