BOLIVAR AND FERRII:RE— ORTHOPTERA, PHASMID^ OF THE SEYCHELLES 299 



Tribe Phibalosomini. Section Platycraniae. 



Gr^effea Brunner, in Dr Graeffe, E.eisen im Innern der Insel Viti Levu, p. 46, 1868 ; 

 Brunner and Redtenbacher, Die Insektenfam. der Phasm., p. 370, 1908. 



6. GrcBffea seychellensis, sp. nov. (Fig. 2.) 



$. Caput elongatum, Iteve. Pronotum et mesonotum Iseve. Segmentum medianum 

 longius metanoto. Elytra ovata, marginem posticum segmenti mediani hand attingentia. 

 Alse elongatae, segmentum 4 abdominis vix attingentes ; are4 postic^ hyalina, ad 

 marginem exteriorem vix rosea. Cerci elongati, lanceolati. Operculum elongatum, 

 acuminatum, abdomen vix superans. Femora inermia, carina infera mediana subtiliter 

 denticulata. 



Long. Corp. 106 mm. antenn. 16|. cap. post antenn. 5^. pron. 5^. meson. 20. 

 metan. cum segm. med. 12. segm. med. 7. abdom. 59. cere. 8. elytror. 9. alar. 24. 

 fem. ant. 34. fem. int. 16. fem. post. 20. 



Reddish-brown, with dark irregular spots. Head hght reddish-brown, with longi- 

 tudinal dark lines, lighter on the cheeks and the occiput, elongate, smooth, with a fine 

 longitudinal groove behind each eye, small eyes and large cheeks. Antennae dark, 

 distinctly articulated, shorter than the front femora. Prothorax short ; prosternum 

 almost as long as broad. Mesonotum dark-spotted, smooth, elongate, slightly wider in 

 front. Median segment longer than the metanotum. Abdomen elongate, segments 

 nearly 2^ times as long as broad, the three last not much shorter. Anal segment with a 

 small median longitudinal keel. Cerci long, narrow, lanceolate. Operculum boat-shaped, 

 elongate and pointed, extending very little beyond the extremity of the abdomen. The 

 lower valvulae of the ovipositor are filiform. Elytra oval, not extending to the posterior 

 end of the median segment : veins well-marked, light on the dark-brown ground. Wings 

 long, reaching nearly to the posterior edge of the 4th abdominal segment : posterior part 

 transparent, slightly rose-coloured at the outer margin. Front femora bent at the base ; 

 with four carinse, of which the two upper ones are very near together and smooth. The 

 lower and inner carina is slightly notched in all the femora. Tibiae all unarmed. Front 

 tarsi much elongate. (C Ferriere.) 



hoc. Seychelles. Silhouette : 1 adult % beaten from a native palm (Stevensonia) in 

 the high forest above Mare aux Cochons, 27. IX. 1908 ; 1 immature $ from high damp 

 forest near Mont Pot-a-eau, about 2000 ft., VIII. 1908. Mah^ : 1 adult ? and several 

 very young $ from high forest near- Morne Blanc, X — XL 1908; Cascade Estate, 

 1 immature ?, 1908—9. Praslin : 1 immature ?, XI— XIL 1908. The very young 

 specunens were bright green when alive, two of the youngest with a dark median 

 longitudinal stripe on the thorax and abdomen. The colour of the adults is described 

 above (from the dried specimens) as reddish-brown, but during life was probably greyer 

 (Scott). 



The genus Grceffea till now has been found only in the Polynesian islands. It is 

 therefore interesting to find it represented in the Seychelles, so far from its geographical 



