513 



each other by a distance at least as great as the diameter of one 

 of these eyes; their distance from the lateral eyes is half as much 

 again as their distance from each other. The distance between the 

 posterior centre and lateral eyes is double that between the two cen- 

 tre eyes, the distance of which is equal to the diameter of a centre 

 eye. The vulva is formed of a transverse, almost triangular opening 

 or fovea, the base or posterior margin of which is in the middle 

 triangularly notched, almost ---shaped. 



The male is considerably smaller than the female, judging at 

 least from the specimen I have seen: its cephalothorax is a little 

 more than 2 millim., the l:st pair of legs 16V a , their tibia 4, their 

 patella 1 millim. The position of the eyes is a little different from 

 that in the female: the distance between the lateral eyes is not 

 greater, but on the contrary a trifle less than that between the an- 

 terior and posterior centre eyes, and the anterior centre eyes are 

 somewhat nearer to the lateral eyes than to each other. The area 

 of the four centre eyes is not, as in the female, evidently broader 

 behind, but, as nearly as may be, equally broad before and behind. 

 The patellar joint of the palpus is very convex above, but little 

 longer than it is broad; the tibial joint is far shorter than the pa- 

 tellar joint, and is on the outer side drawn out into a broad, thin, 

 brown lobe which seems to be firmly attached to the lamina; while 

 on the outer side it runs out into a very long, fine, black, semicir- 

 cularly outward-curved, downward-directed spine. The clava is short, 

 broadly truncated in front, of the same peculiar general form as in 

 L. Hasseltii Thor. cT ') and probably the other species of this genus. 

 The lamina is yellowish brown, much broader towards the apex, 

 truncated in front, almost half-bell-shaped; on the inner side it is 

 drawn out into a long, narrow, downward-pointing, at the apex 

 hairy lobe, at the extremity of which the bulbus exhibits a down- 

 ward-pointing, slender, sinuated, pale-coloured appendage. The bul- 

 bus has at its apex a very long spine, rolled up into a (plane) 

 spiral, which occupies the truncated extremity of the clava. 



(Pag. 471.) Dictyna viridissima. 



Dictyna viriilisshna (Walck.) 1802. 



Sijn.: 1802. Aeanea viridissima Wai.ck., Faune Par., II, p. 212. 

 1805. Drassus viridissimus id., Tabl. d. Aran., p. 46. 



]) See preceding page, note 1. 



