BY It. J. TfLLYARD. 357 



The only other inhabitants of these places are the small larv<e of 

 species of NaiinoJythemis, and it may be supposed that a large 

 number of the.^e fall victims to the large, ugly S. macrostigma 

 iiyinphs 



The full-grown nymph, an ugly, cumbersome, mud-bedraggled 

 •object, crawls out of its " pot-hole," and often travels some yards 

 before ascending a reed-stem to emerge. In the aquarium, these 

 iiymplis are very restless and unliapp3\ Last year, when I had 

 them in an ordinay aquarium with a foot of water, I succeeded 

 in breeding out only one, tliough many climbed over tiie edge and 

 wandered away into a corner of tlie room to die. This year, I 

 placed tiiem in a flat round tin, a yard in diameter, and just 

 covered the sand with water. Here they have done exceedingly 

 well, and all so far have emerged bj' ascending the reed-stems 

 phxced against the edges. They have, however, the greatest 

 difficulty in climbing, and assume all kinds of absurd attitudes 

 in their efforts to secure a firm hold before emerging. 



Ovum slightly larger than that of .S'. eustalacta, pale straw- 

 coloured, semitransparent. N y m p h(full-grown) almost exactly 

 like that of S. eustalacta in shape, but larger, with a large abdo- 

 men, and very dark in colour, some specimens when cleined 

 being almost black, with paler hairs. Total length 2 4, abdomen 

 l-t, breadth of head 6, wing-cases 7 mm. Head dark brown, 

 with frontal tuft of hairs long and matted, postocular lobes hairy. 

 Labium very distinct from that of any other known species. 

 (Plate ix., fig.3), Considex'ably larger than that of S. eustalacta. 

 Mentuin with the median lobe projecting forward into a distinctly 

 protruding point. Mental setoe: 5 primary, 6 secondary. Lateral 

 lobes with 5 stiff setie and a strong sharp terminal hook; distal 

 border very strongly dentate, with four or five large teeth, the 

 lower one rounded (that on the right notched so as to fold over 

 the protruding median lobe), the others ratlier sharp and trian- 

 gular; largest tooth 7 mm., wide by O'-i mm. high. Thorax 

 broad, rather hairy; legs fairly long, stout, brownish, very hairy. 

 Measurements of hind-leg, 7 -1- 5 '5 -i- 3-5 mm. Abdomen long, 

 €longate-ova], very dark brown or black, witli long fine hairs 



