548 MR. W. F. KIRBY ON THE [t)ec. 4, 



eyes to the base of the pronotum ; suture of the tegrnina yellowish' 

 and the antennae, legs, and under surface of body likewise inclining 

 to yellow ; four front femora aud tibiae armed with long slender 

 spines; hind femora considerably thickened before the middle; hind 

 femora and tibiae with very numerous short spines. 



Three specimens, two immature. The adult specimen above 

 described shows only three spines on the intermediate femora ; but 

 one of the others has four, showing that this is not a constant 

 character. 



One of the immature specimens bears a label "Christmas Island, 

 October 3. Colour grass-green." The colour is now much varied 

 with yellow. 



Allied to P. 'pectinata, Guer., but considerably smaller than any 

 of our specimens of that species. 



Phyllopterid^. 



Gryllacris rufovaria. 



Long. corp. 32 millim. ; ovipositor $ 12millim. ; exp. al. 65 

 millim.; long, antennarum circa 110 millim. 



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

 the neighbourhood of the eyes and of the antennae, the space between 

 the latter, the lower mouth-parts, and tlie 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 

 yellowish, with yellowish veins. Wings ample, pale grey ; the longi- 

 tudinal 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 ; antennae, legs, and 

 anal appendages (except ovipositor) sparingly clothed with fine sliort 

 woolly hairs ; hind femora with from nine to eleven short spines, 

 hardly arranged in pairs, on each side ; hind tibiae with six irregular 

 pairs, without counting the apical ones. In the male the last seg- 

 ment of the abdomen terminates in two short stout conical pro- 

 jections ; tlie upper anal appendages are long, tapering, divergent 

 in the middle, and slightly iucurved at the tips ; the lower appen- 

 dages 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, Drnry, 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 (Verb, 

 zool.-bot. Ges. Wien, xxxviii. p. 353, f. 40), than to any other 

 described species. 



Appears to be a common species on Christmas Island, as one male 

 and ibur females were obtained. 



Taken on leaves on a tall tree-top, October 9. 



