104 PROF. A. D. niMS ON 



yellow. The legs and furcnla vary from pale dirty yellow, 

 with purplish or violet suffusions, to deep purple. 



Length 2"5-3'5 mm. 



Six specimens, taken under damp dead leaves, chiefly of Quercus, 

 in forest at Bhowali, Himalayan foot-hills of Kumaon, circa 

 5700 ft. {A. B. hums. October 23rd, 1909). 



No. ^^ Indian Museum Coll. 

 Id 



Genus Ckemastocbphalus Schiitt. 



Cremastoce-phalas Schott, " North American Apterygogenea," 

 Proc. Cal. Acad. Sci. 2nd ser. vol. vi. 1896, p. 175. 



Cremastocephahhs SchafFer, " Collembola des Bismarck- A rchi- 

 pels," Arch. f. Naturgesch., 1898, p. 406. 



Cremastocephalus indicus, sp. n. (PI. IX. figs. 58, 59.) 



Ocelli 16 : 8 in utroqve latere capitis. Unguicuhts siiperior 

 duobus parvis dentihus aronatus ; uyiguicidiis inferior iiiermis. 

 Prcetarsi pilis clavatis singulis instructi. Mucrones furculce 

 trilohati. Long. 1*5 mm. 



Head. — The eyes eight in number on each side ; thej^ost-antennal 

 orga7is absent. 



Antennce. — Long and slender, equal to the combined length 

 of the trunk and furcula. The joints related proportionately 

 in length as 5:7:4:7. The two basal joints armed with 

 long slender setae. 



Trunk. — Denselj^ covered Avith fine hairs and slender setfe. 

 The segments mutually related in length in the proportion of 

 16 : 7 : 7 : 13 : 1 : 50 : 7 : 2. 



Ler/s. — The superior claws moderately stout, armed with two 

 minute teeth (fig. 58) : in 15 per cent, of the specimens one or other 

 of these teeth was absent. The inferior claim broad, obliquely 

 truncated dist^lly, unarmed. A single, very stout, tenent hair to 

 each foot arising from the prtetarsus. 



Furcula. — Reaching to the ventral tube. The manuh'ium 

 related in length to the denies in the proportion of 8:11, The 

 vnucrones (fig. 59) quadrangular, with the distal border trilobed ; 

 in some specimens the lobes appeared to be worn down and 

 absent. A single small scale-like appendage at the apex of each 

 dens on the dorsal side. 



Coloration. — Ground colour varying from ci-eam colour to 

 yellow. The eyes on a conspicuous black patch on either side of 

 the head. The lateral margins of the thoiux and first abdominal 

 segment edged with indigo-blue ; a few scattered jiatches of the 

 same colour over the I'est of the abdomen. The antennas 

 suffused distally with violet ; the legs and fui'cula white. 



The coloration, however, is extremely variable, and a detailed 

 description of the various forms that occur would occupy con- 

 siderable space. In several instances almost all traces of the 

 indigo-blue, markings were absent; this reduction of the colour- 



