686 CATALOGUE OF 



slight keels and with distinct transverse impressed lines; fore border nearly 

 straight; sides slightly rounded ; hind border much rounded. Prosternal 

 spine long, thick, rounded at the tip. Hind femora thick, as long as the 

 abdomen ; hind tibiae pale yellow, testaceous towards the base, a little 

 shorter than the hind femora, their spines with black tips. Wings pale 

 cinereous, as long as the abdomen; veins pale. Length of the body 

 18- 19 lines ; expansion of the fore wings 28 30 lines. 



a. Wady Genneh, Arabia. In Mr. Lord's collection. 



23. CALOPTENUS DISCOIDALIS. 



Mas. Testaccus, sat robustus ; caput albidum, cinereo late univittatum, 

 fastigio conico ; antenna nigricantes ; prolhorax subtiliter sealer, 

 vitta fulva vittisque duabus albidis, necnon vittulis lateralibus quatuor 

 albidis quatuorque piceis, disco tricarinato fere piano, margine 

 postico valde rotundato ; prosterni spina crassa, cornea, longiuscula ; 

 femora postica abdomine perpaullo breviora, supra nigricante 

 bifasciata, intus nigro late nnivittata, extus nigro seriatim punctata; 

 altc antiae diaphance t abdomine paullo longiores, fasciis maculis 

 punctisque fuscis nigro venosis. 



Male. Testaceous, rather stout. Head mostly whitish, smooth ; 

 vertex convex, with a broad ferruginous stripe which is narrower towards 

 the tip, the latter is depressed and conical; front thinly punctured, with 

 four distinct keels which diverge towards the face. Eyes ferruginous, 

 elliptical. Antennae blackish. Prothorax finely scabrous; disk nearly 

 flat, with three distinct keels, and with a tawny stripe which is angular on 

 each side and lanceolate towards the hind border, and is accompanied by a 

 whitish stripe on each side ; four more exterior short stripes on each side, 

 two whitish and two piceous ; fore border nearly straight ; sides slightly 

 rounded; hind border much rounded. Prosternal spine thick, conical, 

 rather long. Hind femora nearly as long as the abdomen, with two blackish 

 bands above, with a broad black stripe on the inner side and with a row of 

 black points on the outer side ; hind tibiae shorter than the hind femora, 

 their spines with black tips. Wings pellucid, a little longer than the abdo- 

 men. Fore wings with brown black-veined bands, spots, dots and points. 

 Hind wings with black veins. Length of the body 13 lines ; expansion 

 of the fore wings 21 lines. 



a. Lower Egypt. From Mr. Lamb's collection. 



24. CALOPTENUS SCRIPTIPENNIS. 



Mas. Testaceui, robustus; fastigium lineare, angustum, depressum; 

 prothorax subtiliter scaber, subcarinatus, postice vix latescens, disco 

 fere piano ; prosterni spina longa, crassa, subacuta ; femora postica 

 latissima, abdomini cequilonga ; tibies posticce pallide Jlava, intus 

 rufescentes ; alee anticce pallide cinereee, abdomini ccquilongcc, guttis 

 plurimis antemediis obscurioribus, fasciis postmediis subobliquis 

 nigricantibus ; alee posticce maculis nonnullis transversis obscure 

 cinereis. 



