386 CATALOGUE OF 



Female. Green, slender, smoolli, shining. Head as broad as the pro- 

 tliorax ; vertex between the antenna? very slightly furrowed, much broader 

 than ihe first joint of the latter, truncated on the fore border, where it is 

 contiauous to the equally broad and obtuse elongated part of the front: 

 labrum mostly white. Eyes fusiform, prominent. Antennge brown, oreen 

 at the base. "Prothorax slightly rugulose, elongate, with a flat disk which 

 hardly widens hindward ; lateral keels sharply defined; fore border slightly 

 exeavated; sides rounded ; hind border slightly rounded. Mesosternum 

 and metasternum deeply notched. Oviduct deep, much curved, less than 

 half the length of the abdomen. Lep;^ slender ; femora setulose ; hind 

 femora half the length of the fore wings; hind tibia? with rather long 

 spines, a little longer than the bind femora. Fore wings fusiform, minutely 

 reticulated, shorter by one line and a half than the hind wings; costa very 

 slightly convex; interior border more rounded; large areolets mostly 

 irregular. Hind wings pellucid; apical patch green. Length of the body 

 8 lines ; expansion of the fore wings 31 lines. 



The yellow stripes on the prothorax of O.gramineus disllDguish it from 

 this and the following species. 



a. Sierra Leone. From Mr. Foxcroft's collection. 



b. West Africa. From Mr. Eraser's collection. 



19. Okophus flavescens. 



Foem. Pallide luteus ; vertex inter antennas subsulcatun, aniice iruncatus, 



orlicvlo ]o diiplo latior ; labrum album ^ oculi fiisiformea ; prothorax 



scile rngulnsus, carinis laterulibus distinctissimis ; wesosternnm et 



metasternum valde incina ; ovidiictus abdomini ccquilongus ; pedes 



graciles ; alee anticce lata, femoribu^ posiicis plus dvpto lonyiores, 



costa perparum convexa^ margine poslico valde rotundato ; ala poslicce 



diaphancE, striga apicaii lata viridi. 



Female. Pale luteous, smooth, shining. Head a little narrower than 



the prothorax; vertex between the antennse twice as broad as the first joint 



of the latter, slightly furrowed, truncated on the fore border, where it is 



contiguous to the equally broad part of the front; labrum white. Eyes 



tawny, fusiform, prominent. Prothorax finely rugulose; disk flat, slightly 



widening hindward, with three indistinct transverse impressed lines ; lateral 



keels sharply defined ; fore border slightly excavated; sides with a conical 



outline; hind border slightly rounded. Mesoslernmum and metasternum 



dee[)ly notched. Oviduct deep, curved, as long as the abdomen. Legs 



slender ; spines small ; hind femora rather less than half the length of the 



fore wings. Fore wings broad, minutely reticulated, sborlev by one line 



than the hind wings; costa very slightly rounded; interior border very 



convex. Hind wings pellucid; apical patch green. Length of the body 



10^ lines; expansion of the fore wings 36 lines. 



a. Gambia. From Mr. Kendall's collection. 



20. OrOPHUS COMPllESSUS. 



Mas. Albido-teslaceus : verticis carina fere plana, vix sulcata, antice 

 paullo anguslior et subincisa ; frons inter antennas quadra'a disco 

 impresso ; prothorax punctatus, disco piano postice latetcente el ferru- 

 gineo, carinis laleralibus bene determinatis, lobis lateralibus fusco 



