HEMLPTERA HE'TEROPTERA. 457 
Genus 5. APLOSTERNA, C. H. 337. 
1. APLOSTERNA VIRESCENS, C. H, 338. 
a, b. Sierra Leone. Presented by the Rev. D. F, Morgan. 
c,d. Gambia. From Mr, Rendall’s collection. 
Genus 6. PIEZOSTERNUM, C. H. 338. 
1. Prezosr—ERNuM mucronatruMm, C. H. 338. 
Old Calabar. Gabon. 
a, b> Congv. Presented by Sir J. Richardson. 
c. West Africa. From M. Da Chaillu’s collection. 
d. Natal. From M. Gueinzius’ collection. 
e, ———? 
2. PrezosrERNUM suBULATUM, C. H. 338. 
Brazil. 
a. ? Presented by Sir E. Belcher. 
b, ¢«. ——? 
d,e. St. Domingo. From Mr. Tweedie’s collection. 
3. PrezosreERNuM THUNBERGI. 
Thunbergi, Stal, Rio Jan. Hem, 28. 
Rio Janeiro. 
4. PlezoSTERNUM RETRACTUM. 
Lutescens, longissime ovale, densissime et sublilissime punctatum ; antenne 
nigr@, basi testacee ; thorax postice viridescens, angulis posticis pro- 
ductis acults apice nigris; seulellum valde atltenuatum, carinatum, 
basi testaceo binotatum ; carina pectoralis picea, obtusa, apicem versus 
rufa et compressa ; pedes picei ; ale antice subviridescentes. 
Dull luteous, very elongate-oval. Head, thorax, scutellum and fore 
wings very thickly and minutely punctured. Rostrum extending beyond 
the fore coxe; tp black. Antenne less than half the length of the body ; 
first, second and third joints testaceous; third blackish at the base and at 
the tip, much shorter than the second; fourth and fifth black; fourth tawny 
at the base, about four times the length of the third; fifth a little shorter 
than the fourth. Thorax with a smooth band in front and with an 
extremely slight keel; hind part dull green; hind angles forming two 
broad acute horns, which have black tips and are shorter than their breadth 
at the base; hind side straight, extending over the base of the scutellum. 
Scutellum much attenuated, very acute, with a pale testaceous callus on 
each basal angle and with a distinct keel. Sternal keel piceous, red and 
compressed towards the tip, which is obtuse, hardly extending to the fore 
coxw, not notched at the base. Abdomen with black spots along each side 
above; hind angles of the segments forming short spines, those of the 
apical segment not extending so far as the anal appendage. Legs tes- 
taceous. Fore wings with a very slight green tinge in frout; membrane 
zeneous-green. Length of the body 9 lines. 
