64 HVMEXOrTERA ACUI.EATA. 



abJomon with its apical dorsal valve with fiae exsertod 

 hairs ; anterior tarsi pectinated, all the tarsi with the 

 spines between the claws less regular, and shorter than in 

 the following. 



L. $ 7-8 mm., ? 9-10 mm. 



Common in sandy localities, and generally distri- 

 buted. 



P. unguicularis, Thoms. — E.x:ceedingly like gibbm, but 

 the cJ very distinct by its flat carinated apical ventral 

 valve. The ? is far more difficult to recognize; it is, 

 however, generally rather larger than gibhus, the face is 

 less convex, the eyes rather closer together on the vertex, 

 the cheeks behind the eyes more pilose, as well as the 

 pronotum, so that the interval between the back of the 

 head and the front of the prothorax seems to be filled with 

 hairs ; the vertex of the head also is more hairy than 

 in gihbus, the sides of the propodeum are finely pilose, 

 whereas they are not so in gibbtis, and the comb of spines 

 between the claws is longer and more regular, but this 

 character is difficult to see, and not to my mind a very 

 satisfactory one. 



L. c? 8-9 mm., ? 10-11 mm. 



Hayling I.; Deal; Woking; Chobham ; Heme Bay; 

 Bournemouth. Lowestoft; {Morice). Colchester; [Har- 

 wood). Glouce.stershire ; {V. Ji. Perkins). 



P. Wesmaeli, Thoms. — ^J easily distinguished from any 

 of our other species by the long pendant spine on the 

 apical ventral valve of the abdomen. I am not satisfied 

 as to the ? of this, but have followed Thomson in 

 assigning to it a few females which I have, with distinctly 

 carinated apical ventral valves ; one of these I caught on 

 the same day, and I believe in the same spot, as the cJ ; at 

 the same time, many species of Fom]:nlus often occur 

 together, and the apical ventral segment of gibbus is often 

 subcarinate. 



L. (? 7-8 mm., ? 9-10 mm. 



