22 [January, 



(instead of with conspicuous pule pubescence of *S^. inennls) ; basal 

 joint of hind tarsi thinner. Base of wino-, margin of squama;, and 

 halteres, black. 



I first distinguished this species from specimens I found at Reigate 

 (Surrey) on July 5th, 1872, but in June, 1908, my nephew, Mr. J. E. 

 Collin, found it in some numbers about the trunk of a small willow 

 tree at Snailwell (Caml)s), and in June, 1911, under similar circumstances 

 at Barton Mills (Suffolk). 



8. S. coxendix, n. s}). : this species is fairly common, and was 

 returned to me many years ago l)y Loew imder the above name. I 

 believe it has never been described, and, therefore (in order to retain it 

 in the " List "), I give a short description. 



Like 8. halterata, but the first costal space from three to six times 

 longer than the second (instead of less than twice), and the front coxx 

 and sides of the basal abdominal segment conspicuously orange. The 

 antennae are less clavate, the legs stouter, and the forked vein longer. 

 The male genitalia end in two narrow curved and pointed lamellre and 

 a central style. 



The specimens sent to Loew were taken near Lewes (Sussex) in 

 June, 1870, but I have taken it since at Chippenham (Cambs), Orfoi'd 

 and Barton Mills (Suffolk), and Lyndhurst (Hants) in June, near 

 Tarrington (Hereford) in July, and Boyton (Suffolk) in August. 



9. Cricotopus pulchripes, n. sp. : in order to retain this species in 

 the " List" I give a short description. 



Very near C. tremulus, but the second joint only of the front tarsi 

 is white, and even the extreme tip of that is black in the male and dull 

 in the female ; the thoracic black stripes are well separated, and the 

 hind margins of third to seventh abdominal segments are more definitely 

 luteous ; the second joint of the front tarsi is relatively shorter in the 

 male as compared with the first joint. 



I caught a pair on Snowdon on June 8th, 1887. 



10. Ceratojjogon pallidus, Winn. : a male was taken at Handcross, 

 in Sussex, on April 12th, 1884, but the species may prove to be common 

 when the genus is well worked out. 



11. C nvheculosus, Meig. : this species is very much like the 

 common C. pvUcaris, but has stronger wing-markings and has the 

 thorax peculiarly dotted. It was abundant near the Worm's Head 

 on September 13th, 1905, and at Aldeburgh on September 9th, 1907, 

 and it svibsequently occiu-i-ed in millions as an intolerable pest on 

 Rempstone Heath and at Wareham, in Dorset. 



