OCR Text |
Show 1 9 0 5 .] ON SOUTH AUSTRALIAN SPIDERS. 5 6 9 N o th ru s a n a u n ie n s is Canestrini & Fanzago. There has always been some uncertainty with regard to this species, which very closely resembles IV. sylvestris. On looking over our British specimens of supposed sylvestris, however, we find some which agree precisely with the description of anauniensis, being tridactyle and having the abdomen rounded posteriorly, with short spatulate hairs of about equal length. This species is therefore for the first time recorded here as British. The diagnosis is complicated by the fact that we find some specimens of undoubted sylvestris which are didactyle, but in no case have we come across a tridactyle specimen of the form characterised by the more truncated abdomen and filiform hairs of unequal length. The two species are, no doubt, closely allied, but there appear to us good grounds for regarding them as distinct. E X P L AN A T IO N OF TH E PLATES. P la t e X IX . Fig. 1. Oribata f areata, p. 565. 1 a, pseudostigmatic organ ; 1 b, lamella. 2. Oribata omissa, p. 565. 2 a, pseudostigmatic organ ; 2 b, lamella; 2 c, tectipedium ; 2 d, femur of 1st leg. 3. Serrarius microcephalus, nymph, p. 566. 3 a, markings on noto-gaster more highly magnified. 4. Liacarus bicornis, p. 566. P la t e X X . Fig. 1. Notaspis maculosa, p. 567. 2. Notaspis sculptilis, p. 567. 3. Nothrus crinitus, p. 567. 4. Nothrus tectorum, p. 568. 5. Nothrus crassus, p. 568. 11. On some South Australian Spiders of the Family Lycosidce. By H. R. Hogg, M.A ., F.Z.S . [Received October 17, 1905.] (Text-figures 80-89.) The Spiders described in the present paper are from the Collection of the S, A u s tr a lian Museum, Adelaide. I am indebted for the loan of them to the kindness of its Director, Prof. E. C. Stirling F E S . They were collected, however, chiefly from the north side of the River Murray in New South Wales. This important group of roving Spiders ranges m great numbers over every part of the known world, and the mam features of the type species, L. tarentula Rossi of the type genus Lycosa Latreille, are so closely reproduced, even to the pattern on the back of the abdomen, in the most widely separated countries (in Australia with L. obscura, L. godefroyi L. Koch, L hasseltn L. Koch, etc') that all attempts to divide them into subsidiary genera, until we reach a few less numerous and quite outlying forms, have proved unsatisfactory. Consequently many earlier genera, |