OCR Text |
Show 1874.] NEW SPECIES OF ERIGONE. 441 so black as the caput; the sternum is orange-red ; the legs light yellow-brown, except the femora, which are also orange-red. The. hairs on the palpi are more numerous and coarser than in E. direct a. The eyes are smaller than in E. directa, and indistinct, but are in the same position ; the part of the cephalothorax near the occiput appears to be finely and transversely rugulose, or striated with fine scratch-like lines, visible only with a lens. The abdomen is elongate-oval, not very convex above, but project ing a little over the base of the cephalothorax; it is of a pale buff•• yellow colour, slightly tinged with brown. The female resembles the male in colours and general characters ; and the genital aperture, though bearing some resemblance to that of E. directa, is yet decidedly distinct. Two adult males and five females of this Spider were contained in M r . Emerton's collection; and all were as vividly and distinctly coloured as the example above described. This with the slight differences in form and structure above detailed convincejne of its distinctness from E. directa. The strong contrast presented by the black and orange cephalothorax and legs with the pale abdomen make it very noticeable. DESCEIPTION OF PLATE LV. Fig. 1. Erigone interpres, g . & <j>, p. 430. a, profile, with legs and palpi truncated ; b, caput, from the front; c, left palpus, from outer side; d, e, right palpus, in two positions; f, genital aperture of female; g, natural length of male. 2. Erigone probata, $ & ?, p. 431. a, profile; b, caput and falces, from the front; c, i-ight palpus, from above and behind; d, e, genital aperture of female, in two positions ; f, natural length of male. 3. Erigone spinifera, o* & ¥ » p- 432. a, profile ; b, caput and falces, from the front; c, left palpus, from outer side and rather in front; d, right palpus, from above and behind ; e, cubital and radial joints of right palpus, from inside and in front; /, genital aperture of female; g, natural length. 4. Erigone lata, $ & ? , p. 433. a, profile; b, natural length; c, caput, from the front; d, right palpus, from outer side and rather underneath; e, ditto, from inner side in front; /, left palpus, from upperside in front; g, genital aperture of female. 5. Erigone lestabilis, $ , p. 435. a, right palpus, from inner side; b, ditto, further round; c, humeral, cubital, and radial joints of right palp, from outer side ; d, natural length. 6. Erigone emertoni, £, p. 435. a, profile; b, caput and falces, from front; c, right palpus, from inner side ; d, ditto, from behind and above; e, natural length. 7. Erigone atriceps, S, P- 436. a, profile; b, caput, from front; c, cephalothorax, from above; d, left palpus, from outer side; e, natural length. 8. Erigone fissiceps, $ & $, p. 438. a, profile; b, fore part of cephalothorax, from above and behind; c, caput, from front; d, right palpus, from inner side in front; e, left ditto, from above and behind; /, natural length; g, genital aperture of female. PROC ZOOL. Soc-1874, No. XXIX. 29 |