ACRID I Dili. 553 



dorsal keel and with four transverse impressed lines, (if whicl) the fust is 

 widely interrupted in the middle and .he secund is abhreviatcd on each 

 side ; f(irc border munded ; sides nearly stiaij^ht; hind border very obliiselv 

 an>rular. Prostcrnal spine elongate-conical, very slii,^l)t!y curved, extending 

 to the fore bender of the mesosternnm. Hind femora and hind tibiie as 

 long as t!ie abdomen ; spines of the hind libiie pale yellow, with black lips, 

 those on the outer side much shorter than those on the inner side, v\hich 

 are very long. Fore wings ralher longer than the hind wings, without 

 markings except towards the tips, where there are some indistinct small 

 spots formed by blackish veins. Hind wings cinereous, pale brownish 

 towards the tips ; veins black, whitish towards the base. EiCngth of the 

 body 23 — 24 lines ; expansion of the fore wings 48 — 54 lines. 



a. Guayaquil. Presented by Dr. Hooker. 



b. Demerara. 



8. Cyrtacanthaceis viridescens. 



Feeni. Teslacea, gracilis; caput vittis duabus ni<jricanlibas poslice 

 diffusis, vertice nntico piano, villis duubus lalerulibus viridibiis, 

 cariuis qualuor frontalibus piceo man/inatis ; prolhorax villis 

 duabus piceis, plagis duabus exlerioribus viridibus ; femoni 

 postica nigro triseiiuliin yulbila. ; libice pnslicce rufa, spinis albis 

 apice nigris ; alee anlicce pallida cinerece, villa discoidali apiceiu 

 versus maculari e venis nigris ; alee posticce diaphnna. 



Female. Testaceous, slender. Head sniotth, with two blackish 

 stripes, which are paler and diffuse towards the hind border and extend to 

 the fore ocellus; fore part Hat, with a well-defined angle on each side; a 

 green stripe proceeding from each eye to the mouih; front thinly and 

 minutely punctured, with four well-defined piceous-bordered keels, the inner 

 keels diverging towards the face. Eyes ferruginous, elongate-elliptical. 

 Antennae slender. Protborax finely scabrous, with a slight keel and witli 

 four transverse impressed lines, of which the foremost is widely interrupted ; 

 two piceous stripes, which are wider towards the hind border; an elongated 

 oblique green patch on each side; fore border rounded; sides very slightly 

 rounded; hind border much rounded. Prosternal spine pale testaceous, 

 elongate-conical, slightly curved, extending to the fore border of the meso- 

 sternum. Hind femora a little longer than the abdomen, with three rows 

 of black dots above. Hind tibiae red, a little shorter than the hind femora ; 

 spines while, with black lips, of equal size. Hind tarsi red. Fore wings 

 pale cinereous, ralher longer ihan the hind wings; veins pale, here and 

 there black, and thus forming a discoidal stripe, of which the exterior half 

 is composed of small patches. Hind wings pellucid, longer than the abdo- 

 men ; veins white, black towards the tips. Length of the body 24 lines ; 

 expansion of the fore wings 51 lines. 



The keels of the front are more strongly marked than those of 

 C. pecloraiis, to which this species is closely allied. 



a. Brazil. 



