XXXIII. DESCRIPTIONS OF NEW INDIAN 

 ODONATE LARVAE AND EXUVIAE. 



By Major F. C. Eraser, I.M.S. 



(With Plates XXXII— XXXVII). 



The following descriptions of Odonate larvae have been made 

 from specimens sent to me through the kindness of Dr. N. Annan- 

 dale and from others collected by myself. The former were mostly 

 collected by Messrs. S. Kemp and F. H. Gravely. The latter were 

 collected around Poona and the types or paratypes have now been 

 sent to the Indian Museum. 



Only two specimens of Epophthalmia were collected and one 

 of these has since been partly destroyed, the perfect specimen going 

 to the Museum. 



Very little has been written on individual Odonate larvae and 

 not more than lo per cent of the Indian forms have hitherto been 

 described. Still less is known of their habits. As more descriptions 

 become available, they may be expected to throw considerable light 

 on the phylogeny of the race, and if only for this reason, are valu- 

 able. That this is so, is aptly illustrated by the descriptions of the 

 three species of Cyclogomphus and by noting the close similarity 

 of two of them, — C. verticalis and heterostylus , — to Macrogomphus 

 annulatus. This similarity is much greater than that between the 

 two species and a third, — C. minuscukis, and raises doubts as to 

 whether they are placed correctly. The curving and cupping of 

 the antlered lobes of Epophthalmia foretells the evolution of the 

 cupped mask of the Libellulines. One has only to web in the 

 spaces between the elongated teeth to obtain such a mask. This bears 

 out the theory that the Libellulinae are an offshoot of a Corduline 

 stem. Other suggestive structures are the triquetral caudal gills 

 of Chloroneura quadrimaculata and the cleft middle lobe of Pro- 

 tosticta gravelyi. 



SYSTEMATIC. 



Suborder ANISOPTERA. 



Subfamily CORDULIINAE. 



I. Epophthalmia frontalis, Selys. 



(PL xxxii, fig. i; pi. xxxiv, fig. 2.) 



Poona, 7. 4. 19, 1512/H2. 



Length 33 mm. Length of hind femora 16 mm. Length of 

 abdomen 24 mm. Mask deeply cupped and curved to cover the 



