1919.] 101 



Although each species of Dianons ahuost certainly has its different 

 favourite conditions of wetness, or mossiness of stones, elevation, light, 

 season, etc., both for the adults and earlier stages, I have been unable with 

 the short time at my disposal to make any detailed observations, though I 

 hope to do so at some later date. However, it may be noted that the 

 two commoner species, D. andrewesi and D. radiatus, are not met with 

 at the lower elevations in the overwhelming percentage with regard to 

 the others that pi'evails above ; in fact D. caeruleonotatus is probably 

 the most frequently seen, then D. andrewesi, whilst D. radiatus is 

 relatively rare. 



Until quite recently, I had not collected specimens of this genus 

 below about 3500 feet, but at Christmas, 1918, I was in camp on the 

 banks of the Sarda River (with which the waters of the Sarju debouch 

 into the plains), at an elevation of about 1000 feet, just before it leaves 

 the hills. During several days of assiduous collecting no Dianous were to 

 be seen, but presently D. lohigerus turned up rarely, and finally it was 

 found in numbers apparently quite at home on the boulders and wet 

 sand where a side stream came down, and with them a couple of speci- 

 mens of a fine new blue form, D. azureus, and a solitary example of 

 D. cameroni ; the generally common D. andrewesi Avas not seen here. 

 This spot, at least in the cold weather, has neither the spray nor the 

 moss one associates with the usual habitat of the genus, and in the rains 

 it would have been entirely submerged. The above notes will suffice to 

 show how vpell represented is the genus Dianous in the Himalaya, where 

 it apparently largely replaces Stenus, for, apart from the two species 

 referred to above, I have met with only a few others in the last three 

 years, and these usually occur in relatively dry spots, such as under 

 stones in fields and in moss away from water. 



H. G. Champion, Working Plans Officer, 



West Almora Division, Almora, U.P. 

 January 29th, 1919. 



A SYNONYMIC NOTE. 

 BY K. G. BLAIR, B.Sc, F.E.S. 



(Publialied by permission of the Trustees of the British Museum.) 



In this Magazine for July last (3rd ser. vol. iv, pp. 149-152) 

 I characterised, with figure, Catohleps as a new genus of Tenehrionidae. 

 M. Maurice Pic has since pointed out (L'Echange, 1918, p. 15) that 

 this genus is the same as that described by him under the name Falso- 

 cossyphus (Mel. exot.-ent. xvii, 1916, p. 4) and classified as possibly 

 forming a new subfamily of the Tenehrionidae near the Cossyphinae, 



