740 MB. F. O. PICKABD CAMBBIDBH ON [June 16, 



11 mm. long, 7 mm. broad, elongate oyal ; with four pairs of 

 sigilla visible— 1st pair at base of labial plate, 2nd marginal, 

 3rd submarginal, 4th remote from margin. Labium broader than 

 long, apex armed along its entire width with cuspules. Coxa of 

 pedipalp scarcely twice its width ; anterior distal angle slightly 

 produced ; auterior basal angle ai-med with cuspules, becoming 

 fewer and more scattered towards the disc. 



Legs spinose ; fourth pair longest. Tarsi and three-fourths of 

 protarsi i. and ii. scopulate ; of iii. tarsi and half protarsi, of iv. 

 tarsi and very slightly at the apex of protarsi, scopulate. Femur 

 iv. with velvet pad on inner side. Tarsal claws 2 ; inner with 7 

 denticles, outer with 6. Spinners 4 ; posterior pair as long as 

 tibia ii. 



This species is very much smaller than A. geniculata, from which 

 it differs, first in the relative length of the first and fourth pairs of 

 legs, secondly in the proportion of the anterior eyes. Its tarsi and 

 protarsi, too, are much less broadly padded with scopular hairs. 



A single female from Para; from a native palm -thatched hut. 



I have much pleasure in connecting this fine species with the name 

 of Mr. Brocklehurst, to whom we are indebted not only for this 

 specimen and many others, but also for great courtesy in rendering 

 every assistance in his power to further the success of the expe- 

 dition. This species is an addition to the National collection. 



The following species have been described and their differential 

 characters diagnosed by M. Simon (Ann. Soc. Ent. Pr. 1892, 

 p. 280) :— 



A. muscidosa, E. Sim., S , op. cit. p. 281. San Mateo, Bolivia 

 {Oarlepp). 



A. maga, E. Sim., (S , op. cit. p. 280. America Meridionalis. 



A. minor, Auss., S , Verhandlungen &c., 1871, p. 200. Guiana. 



A. insubtilis, E. Sim., d , op. cit. p. 282. San Mateo, Bolivia 

 (Oarlepp). 



A. ferina, E. Sim., d , op. cit. p. 282. Teffe, Amazonas. 



Genus Ayiculabia, Lamarck, 1818. 

 Avindaria, Lamarck, Anim. sans Vert. v. 1818, p. 107. 

 Syn. ^7'aH««, Linnaeus ; DeGeer; Kleemann (in part). 



Mygale, Latreille ; Walckenaer ; Hahn ; Lucas (in part). 

 Type. — Figures of two males in ' Dissert. Gen. Metamorph. 

 Insect. Surinam.' pi. xiii. (1726): Madame M. S. Merian. 



Generic Characters. 

 A nterior row of eyes strongly procurved. Legs of first piair shorter 

 than those of fourth. Four pairs of sternal sigilla visible — Isi at 

 base of labial plate; 2nd marginal; 3rd marginal; 4th s%ib- 

 marginal. Posterior pair of spinners longer than ividth of sternum' 

 Carapace nearly straight (in profile) behind the eyes. Patella and 

 tibia iv. longer than carapace, Protarsus and tarsi i., ii., iii., and 



