BOLIVAR AND FERRIERE— ORTHOPTERA, PHASMID^ OF THE SEYCHELLES 297 



the body, which is elevated in the manner of a roof (though this character is less strongly 

 marked than in the other species) ; and on account of the intermediate femora in the $ 

 beino- markedly longer than the metanotum and median segment together, while in the ? 

 they are almost of the same length. This is the only Seychelles species in which the 

 femora are quite unarmed. [1. Bolivar.) 



Log. Seychelles. Mahe : Morne Seychellois, 1905, 2 ^, 2 $ (Gardiner) ;. 1905, exact 

 locality unrecorded, 2 ? ; high forest near Morne Blanc, X — XL 1908, 7 ^, 3 $, and 2 im- 

 mature ?; Cascade Estate, 1908 — 9, 1 $ ; 1908 — 9, exact locality unrecorded, 1 ^, 3 ?. 

 Silhouette : from high forest near Mont Pot-a-eau, some from 2000 feet or more, VIII. 

 1908, 6 ^, 2 ?, and 1 immature $. This is a typically mountain-forest species: the $, 

 which are usually very dark in colour, were frequently swept from beds of fern in the high 

 damp forests : the adult % were brown when alive (Scott). 



5. Carausius scotti, sp. nov. (Fig- 1-) 



$. Caput inter oculos bispinosum, postice bituberculatum. Antennae nigrse, pedl- 

 bus anterioribus longiores. Pronotum utrinque 3-spinosum. Mesonotum tectiforme, 

 tuberculis aliquibus sparsis instructum, atque postice 4-spinosum. Metanotum Iseve, 

 postice bispinosum. Segmentum medianum et segmenta abdominis 2 — 8 postice bi- 

 spinosa; segmenta 9 et 10 baud spinosa. Segmentum anale compresso-tectiforme, lobis 

 parvis. Lamina subgenitalis in mode ejus C. alluaudi constructa. Femora omnia inermia, 

 intermedia et postica ante aream apicalem subtus bidentata : intermedia metanoto cum 

 segment© mediano longiora. 



Long. Corp. 78 mm. pron. 3. meson. 21. metan. cum segm. med. 14g. segm. 

 med. 2i. abdom. 38. fem. ant. 24. fem. int. 17. fem. post. 20. 



Yellowish-brown ; black at the articulations. Head short, dark brown, with two 

 spines between the eyes and two smaller spines on the occiput. Antennae black, longer 

 than the front legs. Pronotum dark, with six little spines, regularly placed in two series, 

 the two front ones longer. Mesonotum roof-like, parallel-sided, with only a few tubercles 

 and four spines near the posterior end, of which the two anterior are nearer the middle line 

 and longer. Mesosternum keeled and smooth. Metanotum smooth, with two spines closely 

 approximated near the posterior end. Median segment and the following abdominal 

 segments except the two last, each with two spines at the hind end, the spines becoming 

 gradually smaller towards the extremity of the abdomen. Abdomen narrow, suddenly 

 enlarged between the 8th and 9th segments. Anal segment roof-like, compressed ; lobes 

 short, provided inside with little black teeth. Cerci short. Subanal lamina gibbous 

 with the posterior edge truncate and sinuate. Front femora unarmed, longer than the 

 mesonotum. Intermediate and posterior femora provided at the apex with two little 

 teeth. Intermediate femora longer than the metanotum and the median segment together. 

 Tibiae all unarmed. 



This single specimen has a peculiar and remarkable aspect owing to the presence of 

 the black spines regularly placed in pairs at the posterior end of each segment (except 

 the two last), and to the yellowish-brown colour passing to black at the articulations 

 of the body and legs. It comes near the other Seychelles species of Carausius in the 



38—2 



