igiQ-] F. C. Fraser : Odonate larvae and exuviae. 467 



Subfamily AGRIONINAE. 



15. Pseudagrion microccphalum, Ramb. 



(PI. xxxvi, fig. 2.) 



Hooshangabad, C.P., 12. 3. 19, F. H. Gravely, 1458/H2., and 

 16. 3. 19, 1456/H2. Pachmarhi, Satpuri Hills, C.P., 3,500 ft., 

 F. H. Gravely, 1457/H2, 1461/H2, 1464/H2. 



There are a large number of these larvae, which have been 

 previously described by Dr. lyaidlaw in the Memoirs of the Indian 

 Museum, Vol. V, 1915, P- 179. 



In regard to the caudal appendages, autotomy is a noticeable 

 feature and what is of even greater interest, the power of replac- 

 ing the lost appendages is aptly illustrated in several specimens. 

 The replacement occurs at ecdysis, but even at the final instar 

 the new appendage is never nearly as large as the originals. 



The specimens differ considerably in the amount of pigmen- 

 tation, this probably depending largely on environment. 



The mask, which has been figured by Dr. I/aidlaw {loc. cit.), 

 has some inconspicuous teeth on the accessory lobe of the lateral 

 lobe. 



16. Pseudagrion hypermelas, Selys. 

 (PI. xxxvi, fig. i; pi. xxxvii, fig. 3.) 



Hooshangabad, C.P., 3. 19, F. H. Gravely, 1438/H2, and 

 at Burhanpur, C.P., 4.3. 19, F. H. Gravely, 1466/H2. 



Length 18 to 20 mm. Caudal appendages 4 mm. 



Body usually darkly pigmented, rather stout and short. 



Mask scarcely differing from that of microcephalum, but the 

 accessory lobe of the lateral lobe absent and the setae numbering 

 5 (pi. xxxvii, fig. 3). 



Abdomen much shorter than the former, the sides spined. 



Caudal appendages pyriform in shape, blunt at the ends, sub- 

 nodate, the proximal part spined laterally. Tracheae branching, 

 root-like. A row of black, pigmented spots round the borders 

 and some mottling elsewhere. 



Legs long and slender, barred with pigment. 



Hah. — Quiet running streams or large tanks, amongst weed. 



