LIST OF HOMOPTEROUS INSECTS. 163 
Black, stout. Prothorax roughly punctured, hardly keeled 
in front; lateral horns short, conical, acute, horizontal, directly 
diverging ; hind part attenuated, keeled, very slightly curved, acute 
at the tip, hardly extending beyond the tip of the abdomen ; a tes- 
taceous tomentose dot on each side at the base; pectus with 
testaceous tomentum on each side, Tibiw and tarsi ferruginous. 
Wings cinereous-vitreous ; veins ferruginous. Fore wings piceous 
and punctured at the base. Length of the body 3 lines; of the 
wings 6 lines. 
a, Tasmania. 
CENTROTUS TRIFOLIACEUS. 
Niger, validus ; prothorax subpunctatus, carinatus, lineis elevatis 
Sulvis, cornubus lateralibus latissimis trigonis subascendenti- 
bus, apice acutis postico vix arcuatis ; cornu posticum altis- 
simum, valde convecum, apice acutum; abdomen cornu 
posticum superans; ale antice fusce, macula basali litura- 
que discali testaceis, maculis duubus marginalibus vitreis ; 
postice subcinerea. 
Black, stout. Prothorax minutely punctured, distinctly 
keeled in front; ridges tawny ; lateral horns very broad, triangular, 
. diverging, slightly ascending, acute at the tips, hardly curved back- 
ward; hind horn compressed, keeled, very deep and convex, acute 
at the tip, not extending to the tip of the abdomen. Fore wiugs 
brown, with a testaceous spot near the base, a testaceous mark 
in the disk, and two vitreous spots on the exterior border. Wings 
tawny. Hind wings grayish. Length of the body 3 lines; of the 
wings 6 lines, 
a. North China. From Mr, Fortune’s collection. 
CENTROTUS ACER. 
Niger, subpunctatus, valde pubescens ; prothoraw cornubus laterali- 
bus longis lanceolatis acutis oblique ascendentibus; corn 
posticum attenuatum, acutum, rectum, abdomen non superans ; 
Semora upice, tibia tarsique ferruginea ; ale cinereo-vitree ; 
antice basi nigre punctate, venis ferrugineis. 
Black, minutely punctured, very pubescent. Prothorax hardly 
keeled in front; lateral horns long, lanceolate, acute, diverging, 
obliquely ascending ; hind horn attenuated, acute, quite straight, 
