1881.] THE SURVEY OF H. M.S. 'alert.' i^5 



Six Hemiptera were obtained, of which one appears to belong to 

 a new species of Sciocoris ; three are referable to a known species 

 of Halobates, one is a new genus of MembracidcB, and one a small 

 Iass7is. 



A single Anopluron was taken, referable to the genus Trinoton. 



B. Orthoptera. 



XlPHOCERID^. 



1. Xiphocera, sp. inc. (immature). 



"St. Vincent, near the beach, 24th October, 1878 ; Puerto Bueno, 

 Straits of Magellan, on shore near freshwater pools." 



CEDIPODIDiE. 



2. CEdipoda aurifera. 



CEdipoda a?/ri/i?rff. Walker, Derm. Salt. iv. p, 735 (1870). 

 Epacromia collecta. Walker, op. cit. v. p. 85 (1871). 



St. Vincent, Cape-Verd Islands, from sandy patches, 24th October, 

 1878. 



Walker at first rightly identified this species with the genus 

 CEdipoda, but remarked, •' this species has some aflfinity to the 

 genus Epacromia ;" subsequently he described a smaller example as 

 an Epacromia, and observed that " this and the preceding species 

 differ much in structure from each other, and from the typical form 

 of Epacromia, and may be considered as the representatives of two 

 new genera." 



3. Ctypohippus arenivolans, sp. n. 



Apparently nearest to " (Edipoda ochraceipennis^^ of Blanchard, 

 from Chili ; also somewhat similar to " (E. chloris." Head and pro- 

 notum greenish yellow, with a lateral longitudinal stripe of black, 

 varied with reddish brown ; on the head this stripe encloses an 

 ochraceous line ; pronotum flat, slightly elevated at the sides, crossed 

 in the middle by a linear transverse impression, and with a central 

 longitudinal carina ; abdomen shining, olivaceous, banded indistinctly 

 with testaceous, and mottled at the sides with castaneous ; anterior 

 and middle pairs of legs castaneous, posterior legs with the femora 

 greenish testaceous, a series of black spots just above the iufero- 

 exterior longitudinal carina towards the base ; tibiaj and tarsi rust-red, 

 the spines tipped with black : tegmina with the basal six thirteenths 

 flesh-coloured, with a longitudinal internal green streak and two 

 transverse dark-brown bands, the inner one interrupted by the green 

 streak, the outer one abbreviated ; base slightly brown-speckled ; 

 remainder of tegmina hyaline white, with ochraceous veins, the cross 

 veinlets black here and there, so as to produce the effect of indistinct 

 greyish spots : wings hyaline white, slightly tinted with yellow to- 

 wards the base, and crossed from the posterior angle to the centre 

 of the anterior margin by a very slightly interrupted arched blackish 



