262 [November, 



these Chironomids I toot, doubtless accideutally, single Borborns 

 lomjijjennis, Hal., and Scaptomyza cjram'mum. Fin. Shipley and 

 Wilson dealt with the stridulatory organs of Anopheles in Trans. 

 Eoyal Soc. Edinb. 1902, p. 367 ; but those of Chironomus seem much 

 less understood, and they are probably possessed only by the male, 

 though, unlike the serial dancers of Culices. both sexes occurred in 

 the present instance. 



Monk Soham House, Suffolk : 



July 2ith, 1912. 



The sound seems to be confined to unusually hot weather, as 

 is testified by several of the above records. At 7.45, a little before 

 dusk on 7th August, a damp and cool evening (temp. 55°), several 

 companies of gnats were seen flying over the moat here ; we listened 

 attentively, but they made no sound whatever. A sweep through one 

 (only) of these well separated companies produced males of both 

 Tanypiis varins and CMronrmuis dorsalis. 



August 9tli, 1912. 



Psylliodes luteola, Miill., in the Oxford district. — Of this rare and distinct 

 Halticid, which has apparently not been met with in Britain for many years, I 

 have taken a good series at Kirtlington, Oxon, between September 16th and 

 October 10th ; my friend Mr. J. Collins having" a short time previously found 

 it rarely near Enslow Bridge in the same county. The majority of my speci- 

 mens wei-e obtained by sweeping very dusty and unsuggestive roadside grass, 

 and a few taken in a wood-path in Kirtlington Park, where the herbage was of 

 a much more varied character, also appeared to come off dry grass only ; so 

 that I am at present unable to refer the insect to any more definite food-plant 

 in this locality. On the Continent, Mr. G. C. Champion has taken P. luteola in 

 plenty on willows at Larche, Basses-Alpes, but this tree does not grow within 

 a long distance of the places where my specimens were found. — James J. 

 Walker, Oxford: October 18th, 1912. 



Species of Longitarsus on Senecio vulgaris, L. — Having recently been devoting 

 a o-ood deal of attention to the food-plants of Longitarsi, it may be interesting 

 to record that I have taken the following species more or less abvmdantly on 

 groundsel {Senecio vulgaris, L.) in Herefordshire : — L. suturellus, Dufts., 

 L. atricillus, L., L. melanocephalus var. kutscherae. Eye, L. ochroleucus. Marsh., 

 L. jacohsese, Wat., L. gracilis, Kuts., and L. succineus, Foudr. 



Last June I found L. ochroleucus swarming on S. vulgaris on the island of 

 Tresco, Scilly Isles, and counted as many as 50 specimens on one small plant. — 

 J. E. LE B. ToMLiN, "Lakefoot," Eeading: October Uth, 1912. 



