162 LIST OF HOMOPTEROUS INSECTS. 



Centrotus ASPERULUS. 



Niger, validus, obscuriis, svhpubescens, subpunctatus, inermis ; 

 cornu posticum attenuatum, acutum ; abdomen cornu posti- 

 cum superans ; pedes picei ; alee anticce nigricantes, fascia 

 subapicali vitrea. 



Black, stout. Prothorax dul], slightly pubescent, very minutely 

 jmnctured, not dilated on each side, attenuated hindward to 

 the acute tip, which does not extend to the tip oi' the abdomen. 

 Legs piceous. Fore wings blackish, with a vitreous transverse line 

 by the tip of each. Length of the body 1| line; of the wings 

 2 lines. 



a. Sierra Leone. Presented by the Rev. D. F. Morgan. 



Centrotus varius. 



Niger, snbpunctatus ; caput inter oculos excavatum ; prothorax 

 carinalus, antice inermis, humeris sat acutis ; cornu poslicum 

 gracile, acutum, imdulatmn, apiid medium testaceum, abdomen 

 non superans ; pedes picei, genubus tibiis apiafifarsisgue ful- 

 vis ; alee anticce basi punctata, lituris variis posticis plagaque 

 costali subapicali viireis. 



This species differs much from the typical form of Centrotus, 

 and may form a new genus. Black, minutely punctured. Head 

 somewhat excavated between the eyes. Prothorax keeled, unarmed 

 on each side, with a smooth shining spot on each side in front ; 

 shoulders somewhat acute ; hind horn slender, acute, undulating, 

 testaceous in the middle, not extending beyond the lip of the abdo- 

 men. Legs piceous; knees, tarsi and tips of the tibiae tawny. 

 Fore wings punctured towards the base, with various vitreous marks 

 hindward and with a large vitreous patch near the tip of the costa. 

 Length of the body 2 lines; of the wings 4 lines. 



a. Birmah. From Mr. Waring's collection. 



Centrotus obstans. 



Niger, validus ; prothorax rude punctatus, antice vix carinatus, 

 cornubus lateralibus abbreviatis, conicis acutis planis, guttis 

 duabus pectorisque lateribus testaceo iomentosis ; cornu posticum 

 attenuatum, curinatum, subarcuatum, apice acutum, abdomen 

 vix superans ; tibicc tarsique ferruyinea ; alee cinereo-vitrece, 

 venis ferrugineis ; anticce basi picece et punctated. 



