W. L. DISTANT— EHTNCHOTA. 77 



Genus Plinachtus, 

 Plinachtus Stal, Of v. Vet.-Ak. Forh. 1859, p. 470. 



Plinachtus pungens. 



Cimex pungens Thunb. Nov. Spec. Ins. ii. p. 36 (1783). 



Var. — The two lateral pale lines on head extend only to eyes and not to base of 

 antennae ; antennae nearly totally black. 



Hab. Mubuku Valley, E. Ruwenzori, 6000-7000 ft.— A well-known South-African 

 species. 



Examples of both the typical and varietal forms are contained in the collection. 



Plinachtus spinosus. 



Plinachtus spinosus Stal, Ofv. Vet.-Ak. Forh. 1859, p. 470. 

 Mubuku Valley, E. Ruwenzori, 6000-7000 ft. — Also found in South Africa. 



Genus Cletus. 

 Cletus Stal, Freg. Eug. Resa, Ins. p. 236 (1859). 



Cletus sp. 



A single undetermined specimen. 



Mubuku Valley, Ruwenzori, 6000-13,000 ft. 



Genus Acanthomia. 

 Acanthomia Stal, Eu. Hem. iii. p. 82 (1873). 



Acanthomia insignis. (Plate II. fig. 7.) 

 Acanthomia insignis Dist. Ann. Mag. Nat. Hist. (8) ii. p. 442 (1908). 



Head, pronotum, and scutellum piceous ; head with two central greyish lines 

 commencing somewhat near together at base and extending to bases of antennae, a 

 similar line on each lateral margin passing inner margins of eyes; basal joint of 

 antennae castaneous, about as long as pronotum, much longer than second joint, 

 which is ochraceous, remaining joints mutilated in type ; pronotum somewhat 

 greyishly piceous, with three discal longitudinal greyish lines, finely greyishly pilose, 

 and with a few scattered very profound dark punctures, lateral angles horizontally 

 spinously produced, their apices slender and smooth, shining black, at about middle of 

 anterior lateral margins a shorter suberect black spine ; scutellum moderately raised 

 with a central greyish line ; corium ochraceous, two longitudinal series of black 

 punctures in clavus, a black line before clavus, which is apically deflected to apical 

 margin, and a submarginal black line which does not reach base; membrane greyish, 

 with the veins piceous ; connexivum piceous, marginal spines black and posteriorly 



