434 PERCY SLADEN TRUST EXPEDITION 



bulla ; generally absent from the terminal margin ; less numerous in the disk than in the 

 type-species. Caudal setse 3, equal, more than twice the length of the body. Costal 

 projection of the hind wing subacute, roughened apically with minute setulse. Thorax 

 brown ochreous ; the point of the scutellum may be of a bright yellow. Abdomen in 

 segments I — 7 translucent white, outlined narrowly along the apical edges of the segments 

 with black or piceous, the dark edging blending with a small triangular spot of the same colour 

 on each side where tracheal branchiae were inserted in the nymph ; and sometimes a small 

 dot is visible at the base of the segment on each side: segments 8 — 10 and the base of the 

 forceps, also the caudal setse white. Hinder legs white or whitish, with a black or fuscous 

 spot (sometimes lacking) at the tip of the tibia, and two bands (or a submedian spot and 

 an apical band) of a like colour on the femur : fore femur wholly, or only in its distal half, 

 tinged with fuscous or bistre grey, not concealing the bands, and sometimes with a dark 

 short streak at its base. Genitalia $ difficult of delineation from carded specimens ; 

 ? egg- valve produced and conspicuous as in H. caligatus Hag. MS., the type-species. 

 Length of wing 4 and of setae about 10 mm. 



Twenty-nine carded specimens include 8 $ and 3 $ subim. ; and 15 ^, 3 $ im. 



Loc. Seychelles. Mahd : near Morne Blanc, about 800 feet ; Cascade Estate, 

 800 feet and over; Mare aux Cochons district, about 1500 feet. One of the specimens 

 from near Morne Blanc was caught in the afternoon in a ravine (13. X. 1908); others, 

 from the same locality, at sunset (10. XL 1908) in a swampy hollow containing pools, 

 long grass, wild palm-trees, &c. Some of the Cascade specimens were obtained in the 

 morning (10. I. 1909) from dense undergrowth of fern, &c., in a shady valley filled 

 with palm-forest (Scott). 



