214 [September, 



local species which occurred freely with them was Pyrrhosoma tenel- 

 lum, and of it, a dark bronzy form of the ? , which does not seem to 

 occur in the Surrey localities of the species, was common. On a 

 broad stream the pretty Gomphns vulgatissimus was so common that 

 on one day I think I must have seen at least forty specimens ; and 

 with it Oordulegaster annulatus was not at all rare. The fine Anax 

 imperator occurred, bul probably we did not come across its head 

 quarters ; and, on one pond at least, Libellula quadrimaculata was in 

 numbers. One or two specimens of a large species, probably JEschna 

 juncea were hawking on a heath, but we failed to catch an example. 

 The pretty Platycnemis pennipes abounded, and in great variety, 

 numbers being ivory-white, with dark transverse markings, and many 

 of the loveliest sky-blue, with longitudinal marks. Of the larger 

 species, the most abundant was undoubtedly Orthetrum ca^rulescens, 

 yet although so plentiful, it was evidently only just well out on our 

 arrival, as all the J s were then brown, not a blue one to be seen. A 

 few days sufficed to bring them to the adult colouring, when the blue 

 <$ s were plentiful enough. Platetrum depressum was, of course, every- 

 where, and the blue <^s of it also became more abundant day by day; 

 the gorgeous Calopteryx virgo flitted in plenty about all the larger 

 streams ; but, curiously, G splendens was never seen. Lastly, it need 

 scarcely be added that Pyrrhosoma nymphula was plentiful enough. 



Of Planipennia, Raphidia notata, Hemerobius stigma and H. 

 concinnus occurred, the last in plenty, but all of the brownish form ; 

 Chrysopa alba, O. tenella, C. ventralis, and C. perla, the last two in 

 plenty ; Panorpa communis, &c. The only Perlidce noticed were Isop- 

 teryce tripunctata and Nemoura variegata. 



Nothing of any note turned up from the little work done among 



the Trichoptera. These included Phryganea grandis ? , one ? only, at 



sugar ; Glyphotcelius pellucidus, not uncommon ; Limnophilus rhom- 



bicus, L. griseus, L. auricula, L. centralis, L. luridus, the last abundant, 



Micropterna lateralis, common ; Sericosfoma personatum, Goera pilosa, 



common ; Leptocerus cinereus, abundant, Mystacides nigra, &c. 



Crosland Hall, Huddersfield : 

 August I3tk, 1902. 



AQUATIC OETROPTERA IN CEYLON. 

 BY E. ERNEST GREEN, F.E.S., Government Entomologist, Ceylon. 



I see in a report of Proc. Ent. Soc. (in July number of Ent. Mo. 

 Mag.) a note about Aquatic Orthoptera, the occurrence of such forms 

 being considered peculiar. We have in Ceylon a large group of 



