1908.] 211 



oo. Fourth joint of anterior tarsi hardly longer than third, which is equal to the 

 two following united, and a little longer than the fifth ; metathorax not 

 si lining 19. breeifilis, K it'll'. 



ooo. Fourth joint of anterior tarsi a little longer than the first, equal to or longer 

 than the fifth; inner claw of chela) with one or two rows of plates ; 

 m eta thorax with three areae. 



p. Prothorax a third longer than mesothorax, and narrower than it, coriaceous, 

 feehlj shining; wings hyaline 20. graciUcollin, Kieff. 



pp. Prothorax a third or fourth shorter than the mesonotum ; thorax shining, 

 shagreened, with a few shallow punctures ; wings yellowish on the apical 

 third 21. fusiformis, Kieff. 



oooo. Fourth joint of anterior tarsi not half as long as first, shorter than fifth ; 

 inner claw of chelae often unarmed, except at the extremity. 



q. A short ridge placed before the front ocellus and hardly longer than it. 



r. Metathorax with a transverse curved ridge, forming the boundary between 

 the horizontal and sloping part ; joints of flagellum distinctly longer than 

 wide ; parapsidal furrows distinct for the front half; inner claw of chelae 

 entirely straight -. 22. rectus, Kieff. 



rr. Metathorax with a large, dull, rugose area ; sixth to ninth joints of antennae 

 not longer than wide ; parapsidal furrows indistinct ; inner claw of 

 chelae curved at the end 23. obscuricomis, Kieff. 



qq. No trace of a frontal ridge. 



f. Legs entirely black-brown 24. bracht/cerus, Thorns. 



f f. Legs, at least the anterior, in part light coloured. 



g. M etathorax with a transverse ridge. 



h. Legs clear brown ; head with a very short ridge in front of ocellus... 



22. rectus (cf. supra). 



hh. Trochanters, knees, tibiae and tarsi testaceous-yellow ; hind tibiae brown, 

 except base ; head coriaceous, hardly shining, with an indistinct im- 

 pressed line 25. scoticus, Kieff. 



gg. Metathorax with one or three areas, more or less distinct ; inner claw of 

 chelae curved at end. 



i. Metathorax with three quite distinct areae 2<>. triareolatus, Kieff. 



ii. Metathorax with one indistinct area. 



j. Intermediate and hind legs brown, knees testaceous ; anterior legs brown 

 with the knees, tibiae and tarsi testaceous ; coxae brown with the apices 

 tastaceous 27. brevicollis, Kieff. 



jj. Legs and apices of coxae of a bright yellow colour, except the tibiae, which 



are brown ; second joint, of antennas clear brown... 28. Jlavitarsis, Kieff. 



jjj- Legs reddish-brown, base and thickened part of femora brown ; parapsidal 

 furrows indistinct ; area well marked 23. obscuricomis (supra). 



jjjj- Legs black, trochanters, knees, tibiae and tarsi brownish-yellow ; hind tibia; 

 brown 29. curvatus, Kieff. 



B. First section of radius shorter, or at most as long as second ; radius usually 

 curved. 



a. First section of radius as long as second; anterior metatarsus longer than 



the other joints. 



8 2 



