NOTES ON ODONATA COLLECTED IN NORTH WALES. 155 



Triphoena fimbria, April 29th, 1909, T. pronuha, December 1st, 

 1913, Calt/miiia trapezina, June 22nd, 1911, Taniocampa stabilis, 

 June 30th and July 12th, 1915, Noctua xanthof/rapha, Aj)ril, 

 1911, and also from undetermined larvae of Noctuae on apple 

 July 7th, 1911, on broom April 23rd, 1914, and on Harpalium 

 rigiduiit, July 30th, 1914. Beaten from oak September 17th, 

 1916, and October 10th, 1916. Swept at Becton Bunny, Hants, 

 May 16th, 1910, Hunstanton Sand Hills, Norfolk, June 5th, 

 1918, and Cambridge, August 1st, 1918. No doubt the insect is 

 common throughout the country. Marshall and Morley give 

 numerous localities. 



Armatus, Wesm.* 



Somewhat similar to the last, but having larger eyes and the 

 vertex behind them with straight sides. Often entirely testaceous 

 with the exception of the eyes, stemmaticum, claws, terebra and 

 a small dot over each radix which are black. The male is very 

 like that of Petalodesunicolor, though, of course, easily separated 

 therefrom by the suturiform articulation. 



I have one male and two females bred from New Forest larvae 

 of Ephi/ra Unearia. September 30th, 1912, April 28th, 1915, and 

 June 6th, 1916 ; the two last passed a winter within the hardened 

 skins of their hosts. Male antennae 42-jointed, of both females 

 39-jointed. 



(To be continued.) 



NOTES ON ODONATA COLLECTED IN NORTH WALES 

 IN JUNE AND JULY, 1918. 



By a. H. Newton, M.B., Ch.B. 



On June 4th I found several small pools near the summit 

 of Conway Mt. literally swarming with Lihellnla quadrimacidata, 

 Linn. These pools were small and shallow with grassy bottoms, 

 and with no reeds or herbage other than the short mountain 

 grass at the edge of the water. The insects were difficult to 

 catch — not because they appeared to avoid one, but because of 

 their sober colouring and the quickness of their flight. They 

 seemed to live their lives at high tension. After a time I found 

 that by listening for the flutter of wings as they came together 

 in copula I could frequently follow and catch a pair of them. 



Very little time is spent per collum. It seemed to me, how- 

 ever, that there was something unusual about the attitude when 

 in this position, and after watching carefully I came to the 

 conclusion that the male passes his claspers below the mouth 

 of the female and grips her neck from the ventral aspect. It 

 even seemed that at the first moment of contact the female was 



* ' Nouv. Mem. Ac. Brux.,' 1838, p. 112. 



