MonophlebincB. 449 



reduced in size to the ninth, which is the smallest ; third to sixth slightly 

 gibbous ; each joint with a few shortish hairs towards the distal extremity. 

 Limbs moderately large and stout {fig. 5) ; the tarsus rather less than half 

 the length of the tibia, which is equal in length to the femur (without the tro- 

 chanter). Claw [fig. 6) stout and moderately falcate. Tarsal and ungual 

 digitules slender, simple. Ceriferous tracts not sharply defined, but occupying 

 the greater part of the dorsum ; somewhat loosely set with large, stout, 

 acuminate spines {fig. 13), the basal halves of which are hollow and thin-walled. 

 The tracts are separated from each other by narrow zones, devoid of spines, but 

 with a few slender whip-like setjc springing from stout collared bases. Anal 

 orifice masked by a crowded group of stout seta;, but without any sharply 

 defined surrounding tract. Venter closely set with long stout curved setae 

 {fig. 12). Dermal pores of several types, the largest of which are of a very dis- 

 tinctive character, being in the form of symmetrical rosettes, with an obscurely 

 three-foliate (occasionally four-foliate) central orifice, surrounded by a circle of 

 six (occasionally four, five, or eight) ovg.te nucleated cells (see figs. 12, 13) and 

 a denser outer chitinous rim which follows the contour of the circle of ovate 

 cells. These rosette-shaped pores occupy the intermediate zones on the 

 dorsum and the greater part of the ventral area. The median area of the venter 

 is occupied by somewhat smaller, circular or broadly ovate pores {fig. n) 

 which have an elongate or obscurely 8-shaped central orifice, surrounded by 

 a raised ring of from six to ten (usually nine) bead-like cells. The pores asso- 

 ciated with the anal area {fig. 10) have a subcircular central orifice surrounded 

 by a prominent chitinous ring obscurely beaded on its inner face. Small cir- 

 cular, densely chitinous pores, with quadrilocular orifices, outline the ceriferous 

 tracts and are scattered amongst the spines ; they also occur on the venter, at 

 intervals amongst the rosette- shaped pores. Seen in profile (as in fig. 13) they 

 appear as truncately conical bodies, with a short slender tube projecting from 

 the apical orifice. The dorso-abdominal spiracles, of which there are several 

 pairs — (I have been unable to determine the exact number)— are simple chitinous 

 rings {fig. 9) ; some of the rings appear to be incomplete. Length of denuded 

 insect 12 to 15 mm. Breadth 10 mm. With all the processes intact, my largest 

 example measures 25 by 18 mm. The dimensions of average examples would 

 be about 20 by 15 mm. 



Newly hatched larva {figs. 2, 3) with numerous long, fine, silky filaments 

 springing from the margins of the body, but directed upwards. Antenna five- 

 jointed. Derm of dorsum (see fig. 8) with ceriferous tracts bearing longish 

 stout acute spines, each tract defined by a close series of small but prominent 

 quadrilocular pores ; the intermediate areas with larger, rosette-shaped pores 

 of which the central orifice may be either three- or four-lobate, encircled by 

 from four to eight (usually four) large nucleated cells. Length rs mm. 



On stems of Eiigenia subavenis and Michelia nilagirica. Botanic Gardens, 

 Hakgala. 



3N 



