144 (June, 1909 



decaying beech tree in Stoke Wood, alfeady alluded to more than once 

 in these notes. Closely related to the two preceding species, it differs 

 from both in the much yellower colouring, the shorter costal fringe, and 

 in the absolutely bare condition of the hypopygium and end of the 

 abdomen in the male. 



Nif/ripes. — Found almost wherever T go in Herefordshire in the 

 spring, and still more freely from July well on into the autumn. The 

 variation, within appreciable limits, in the length of the costa of the 

 male is very unusual, and its shortness in many of the sj)ecimens 

 raises the question whether the insect should not rather be referred 

 to Section D than to C ; on the other hand, its greater length in 

 others, and undoubted length in the female, seem to justify its 

 inclusion here. 



JJn(]HicuJaris. — Very rare. I have taken three specimens only, the 

 dates and localities being Stoke Wood, 27.3.07 (2 specimens), and 

 JN'liddle Park Pool, 20.5.07. Mr. Collin informs me that he has taken 

 two males on a wall at Newmarket in October, 1907, and another at 

 Snailwell, near Newmarket, in June, 1908. I do not at present 

 recognise the female. Its most ri'markable character is the jx'cuiiar 

 claw-like organ underneath the hypii])ygium, which it shares in common 

 with the ne.\t species. Looked at casually, it might be taken for the 

 ventral plate, but this view is negatived by its free or pointed end 

 being directed forwards nstead of backwards, whilst its attachment is 

 seemingly to the stibanal body. Possibly it may be the penis. 



Harbidata. — A single male, Stoke Wood, 27.7.07. hWieunguicularis 

 in many ways, but well distinguished by the distinctly longer costa, 

 the broader frons with its large antenna^ the long hairs underneath 

 the hind femora, and by the great size and globular shape of the hypo- 

 pygium. It is not always advisable to found a species on a solitary 

 example, but there are in this case so many good and positive char- 

 acters distinguishing it from any other in the group possessed of a 

 long costa and fringe, simple fore tarsi, black halteres and bristly 

 pleurse, that 1 have had no hesitation in doing so here, and have called 

 it bin'bulatri, after the long hairs underneath the hind femora. 



Beckeri. — Thh &ne and unmistakeable insect, named in compli- 

 ment to the author to whoin we owe so much for his work on the 

 family, frequents wet or boggy places, where it is not uncommon in 

 August and September. Jt is probably widely distributed, and I 

 think Mr. Malloch has sent it me from Scotland. 



