A SYNOPSIS OF BRITISH PROCTOTRIPIDJE (OXYURA). 159 



19. Proctotrypes Chitii, sp. nov. 



A shining species with the frons normal, metathorax except 

 Nasally scabriculous, terebra hooked and a dark spot below the 

 alar stigma ; abdomen oblong and apically subtruncate. Similar 

 to P. viator in its wings, centrally unicariuate and laterally 

 mutic metathorax, red legs with all onychii nigrescent, deplanate 

 frons and subdistinct discal nervures, but very different in having 

 the radial cell so short as to be hardly distinct from the stigma, 

 head buccate and in ? but slightly broader than long, all the 

 coxse red, disc of metathorax subtriangularly nitidulous to its 

 base with this area weakly circumcarinate, and remainder of 

 metathorax more finely rugulose ; second segment basally less 

 compressed with more feeble strise, terebra longer and stout, 

 stongly arcuate, much longer than metatarsus, and as long as 

 half segment ; legs also very much longer, and the hind ones 

 nearly double abdominal length, all the onychii and onyches of 

 ? black with the anterior distinctly explanate though simple. 

 Length 5 mm. <$ $ . 



Types of sexes in author's collection. 



The late Arthur John Chitty, M.A., recognised this species 

 as undescribed when working through the genus in 1907, and 

 had distinguished it by a MS. name. It is peculiarly his, since 

 he captured the unique female near his country house at 

 Huntingfield, in Kent, on September 2nd, 1905, and the male in 

 the same district of Faversham on October 8th, 1906. I here 

 do myself the honour of perpetuating the memory of a most 

 brilliant entomologist and intimate friend. 



EXALLONYX, Kieffer. 



Bull. Soc. Hist. Nat. Metz, xi, 1904, p. 34. 



This genus differs from the subgenus Phcennserphus of Procto- 

 trypes in little but the explanate anterior onychii and their 

 remarkably trifid onyches. Eighteen palaearctic species and 

 some from America were known in 1908. 



Table of Species. 



(16). 1. Eadial cell at most half length of the normal stigma. 

 (15). 2. Second, large abdominal segment basally striate. 



(8). 3. Frons deplanate, not elevated above antennal insertion. 



(7). 4. Metathorax discally smoother ; antennae mainly nigrescent. 



(6). 5. Antennae of ? slender, reaching to abdominal centre. 



1. longicomis, Nees. 

 (5). 6. Antennas of ? stout, not reaching beyond thoracic apex. 



2. brevicornis, Hal. 

 (4). 7. Metathorax reticulate throughout ; antennae flavous. 



3. xanthocerus, Kieff. 



