86 PROF. A. B. IMMS ON 



Organa postantennalia desunt. Ocelli in utroque latere capitis 2. 

 Color coraliiom. Long. 2-2'3 mm. 



Head. — ^Broader than long, somewhat triangnlai' in form 

 (fig, 23). Tlie eyes two in number on either side, situated at the 

 base of a rounded dorsal tubercle which is surmounted by a 

 centi^al seta (fig. 25). Post-antennal organs wanting. 



Antennce. — Appi-oximately eqvial in length to the head ; the 

 joints related to one another in length as 8:11:7:9. The 

 articulation between the third and fourth joints imperfectly 

 developed, and only visible on the ventral aspect. A small 

 trilobed sense-organ at the apex of the terminal joint (fig. 24). 



Trunk. — The segments mutually related in length as 6:8: 

 9:8:8:8:8:6:4. The three thoi'acic segments each provided 

 with a pair of small, dorsolateral hemispherical protuberances, 

 surmounted by setfe. The first three abdominal segments have 

 each a, similar pair of protuberances, together with a larger pro- 

 tuberance placed externally to the latter (fig. 23). The lateral 

 margins of the fourth abdominal segment produced into a series 

 of three such protuberances ; the fifth and sixth abdominal 

 segments each with a pair of similar bodies, only larger and 

 dorso-lateral in position. The cuticle investing the body and 

 appendages ornamented with minute closely-set tvibercles (fig. 25). 



Legs. — Short and stout, sub-equal in size; the hind pair of 

 tibipe as long as the femora, the tibiae of the first and second 

 pairs of legs shorter than the femora (fig. 26). The claws alike, 

 large and stout, slightly curved and minutely tuberculated ; 

 teeth wanting. 



Coloration. — Bright coral-red when alive {Green), but the 

 pigment is completely soluble in alcohol, giving the latter a 

 pinkish-orange colour. 



Length 2-2*3 mm. 



Fifty-two examples from Peradeniya, Ceylon, 1500 ft., where 



it is common under stones, logs of wood, and dead leaves {E. E. 



Green). 



4386 

 No. -TB" Indian Museum Coll. 



io 



The relative lengths of the joints of the antennae and legs 

 exhibit considerable diversity in alcohol specimens owing to the 

 variable amount of contraction undergone. 



Neanura pudibunda, sp. n. (PI. YI. figs. 10-12.) 



Organuin postantennale ellipticum, iyichoatwm. Ocelli in utroque 

 latere capitis 3. Unguiculus sriperior uno dente armatus, inferior 

 inchoatus. Color coccineus. Long. 1 '5-2 "25 mm. 



Head. — Somewhat broader than long, triangular. Eyes 

 spherical, thi-ee on each side. The post-antennal organs rudi- 

 mentary and appear to be represented by a patch of modified 

 cuticle close to the outer side of each group of eyes (fig. 10). 

 . Antennce. — In length very nearly equal to the head ; the 

 articulation between the third and fourth joints imperfectly 



