86 LIST OF HOMOPTEROUS INSECTS. 
Bipis PUNCTIFRONS. 
Bidis punctifrons, Walk. Journ. Linn. Soc. i, 150, 48. 
a—c. Borneo. From Mr. Wallace’s collection. 
Genus OSTAMA. 
OsTAMA JUNOTA. 
Ostama juncta, Walk. Journ. Linn, Soc. i. 151, 50. 
a,b. Borneo. From Mr. Wallace’s collection. 
Genus RHOTALA. 
RHOTALA DELINEATA. 
Rhotala delineata, Walk. Journ. Linn. Soc. i. 152, 52. 
a, b. Borneo. From Mr. Wallace’s collection. 
Tribe ISSITES. 
Subtribe ISSOIDES., 
Genus ISSUS, Cat. Hom. p. 361. 
Mexico: 
Issus CASSIDOIDES. 
Sordide viridis, nigro aut fusco varius ; vertea transversus, depres- 
sus ; frons subobliqua, tricarinata, lateribus productis ; pro- 
thorax antice subconicus; mesothorax bicarinatus ; pedes 
robusti ; ale antice submetallice, venis fulvis, costa bast sub- 
gibbosa; postice cinerascentes. 
Dingy green, marked with black or brown, mostly black beneath. 
Vertex depressed, nearly twice broader than long; front depressed, 
with three indistinct keels, slightly sloping forward, narrowest 
towards the vertex, notched in the middle towards the face, beyond 
which it is produced on each side. Prothorax more than twice 
broader than long, very convex in front, extending partly over the 
