ACRID1D2E. 553 



dorsal keel and with four transverse impressed lines, of which the first is 

 widely interrupted in the middle and the second is abbreviated on each 

 side ; fore border rounded ; sides nearly straight ; hind border very obtusely 

 angular. Prosternal spine elongate-conical, very slightly curved, extending- 

 to the fore border of the mesosternum. Hind femora and hind tibiae as 

 long as the abdomen ; spines of the hind tibiae pale yellow, with black lips, 

 those on the outer side much shorter than those on the inner side, which 

 are very long. Fore wings rather 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. Length of the 

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



a. Guayaquil. Presented by Dr. Hooker. 



b. Demerara. 



8. CYRTACANTHACBIS VIRIDESCENS. 



Fcem. Testacea, gracilis ; caput vittis duabus nigricantibus postice 

 diffusis, vertice antico piano, vittis duabus lateralibus viridibus, 

 carinis qualuor frontalibus piceo marginalis ; prothorax vittis 

 duabus piceis, plagis duabus exterioribus viridibus ; femora 

 postica nigro triseriatim gultala ; tibice posticce ruffe, spinis albis 

 apice nigris ; alee antica pallide cinerece, vitta discoidali apicein 

 versus maculari e venis nigris ; alee. postic<e diaphance. 



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

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

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

 green stripe proceeding from each eye to the mouth; 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. Prothorax finely scabrous, wilh a slight keel and with 

 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. Proslernal 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 tibia3 red, a little shorter than the hind femora ; 

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

 pale cinereous, rather longer than 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. pectoralis, to which this species is closely allied. 



a. Brazil. 



