517 



and ? kindly furnished me by L. Koch, the cephalothorax is only 

 3'/ 3 millim. long '). That which immediately indicates, that E. sil- 

 viculirix is a perfectly independent species, is the palpi of the male: 

 the tibial joint is much dilated inwards and somewhat downwards 

 to a thick, almost three-sided, at the apex blunt lobe, which at its 

 anterior margin, near its apex, carries two long, at the base very 

 thick, gradually tapering bristles, which curve rapidly upwards and 

 outwards, running out into a very long, fine point. On the outer 

 side also the tibial joint is drawn out into a lobe, which however 

 is considerably shorter and narrower than that on the inner side. 

 At the base of the upward turned egde the lamina exhibits a short, 

 stout, blunt process. In E. umbratiea cf, the tibial joint has on 

 the inner and under side of the apex a small, blunt, toothlike pro- 

 cess, which bears some hairs of the usual form; there is a large 

 lobe on the outer side of this joint, directed almost downward; the 

 process at the base of the lamina is at the apex produced into an 

 almost triangular little lobe, forming a right angle with the pro- 

 cess and directed outwards and forwards. In E. umbratiea c? the 

 bulbus has near the middle of the under side a short and broad 

 process, which at the apex sends out two pointed branches in oppo- 

 site directions: the larger of these branches is directed outwards, 

 and is almost triangular, (not bifid, as the large process of the bul- 

 bus is in f. inst. E. sclopetarid). In E. silvicultrix the corresponding 

 process has the form of a short and stout hook with the apex di- 

 rected inwards. The female of E. silvicultrix differs from E. %imbra- 

 tica v by its smaller size, its pale coxae and the generally more di- 

 stinct marking; moreover the notch in the anterior border of the ab- 

 domen, which is observed in E. umbratiea, seems to be absent in 

 E. silvicultrix. Also the vulvae exhibit some difference; in E. silvi- 

 cultrix this organ is very small, black, and drawn out into a very 

 short and small, conical, black scapus, which is directed downwards 

 and forwards, and which, on the hinder side (that turned towards 

 the belly) has an oval depression; in E. umbratiea the vulva, which 

 is black in front but paler behind, is at its hinder border produ- 

 ced into a short, backward-turned, reddish brown continuation, which 

 is tongue-like and slightly excavated longitudinally. — Kespecting E. 

 silvicultrix Ohl. , see above, p. 17. 



l) Almost equally small specimens of E. umbratiea are however sometimes 

 met with: in one $ (Swedish) and one % (from Venice) in my collection the ce- 

 phalothorax is only 3 3 / 4 millim. long. 



