148 C/iristmas Island. 



Male.- -TcsteLceons or rufo-testaceous, in tlie darkest specimens 

 inclining to reddish on the head, pronotum, and the raised border 

 of the tegmina ; mouth Hackish, palpi and femora yoUo-sv, abdomen 

 black above and below ; knees, tibioe, and tarsi more or less varied 

 "vvith blackish. 



Female. — Apterous, the abdomen more or less testaceous above. 



Four specimens, East Coast, August and September, 1897, and 

 Flying Fish Cove ; also four specimens from Mr. Lister's collection. 



Nearest allied to £. xanthopterus, Guer. 



Family GllYLLACKID^. 

 17. Gryllacris rufovaria. (PL XIY, Fig. 1.) 



GryllaerisrHfovaria, Khb. : P.Z.S., 1888, p. 548. 



" Long. Corp. 32 mm. ; ovipositoris 9 12 mm. ; exp. al. 65 mm. ; 

 long, antennarum circa 110 mm. 



"Yellowish brown; the head, especially the face, red; the vertex, 

 the neighbourhood of the eyes and of the antenna?, the space 

 between the latter, the lower mouth -parts, and the palpi more or 

 less varied with yellowish, prothorax and sides of abdomen beneath 

 varied with red ; spines of the hind legs tipped with black ; tegmina 

 yelloAvish, with yellowish veins. Wings ample, pale grey; the 

 longitudinal nervures yellowish brown ; the cross-nervures blackish, 

 bordered with dusky on each side, except the two or three outer 

 rows, the outermost of all being varied with yellowish. 



"Moderately stout, smooth and shining; face with a few shallow 

 punctures ; head and thorax of equal breadth ; antenna), legs, and 

 anal appendages (except ovipositor) sparingly clothed with fine, 

 short Avoolly hairs ; hind femora with from nine to eleven short 

 spines, hardly arranged in pairs, on each side ; hind tibite with six 

 irregular pairs, without counting the apical ones. In the male the 

 last segment of the abdomen terminates in two short, stout, 

 conical projections; the upper anal appendages are long, tapering, 

 divergent in the middle, and slightly incurved at the tips ; the 

 lower appendages are only half the length of the upper ones, and 

 are simply divergent. In the female the upper appendages are 

 stouter at the base and more incurved at the tips than in the male, 

 but are of nearly equal length. 



"Belongs to the same group as Gryllacris tessellata, Drury, but 

 readily distinguished by the total absence of black markings on the 

 head and thorax, and by the colour of the tegmina and wings. It 

 is probably more closely allied to G. variabilis, Brunner (Yerh. 

 Zool, hot. Ges. "VYien., xxxviii, p. 353, fig. 40) than to any other 

 described species. 



"Appears to be a common species in Christmas Island, as one 

 male and four females were obtained." (Lister.) 



