| OCR Text |
Show 256 MR. F. PICKARD CAMBRIDGE ON THE [Apr. 15, portion of the abdomen inclines to be marked by indistinct narrow, transverse, pale cinctures, as in an example from Abyssinia; while the markings on those from New Zealand more resemble, though very indistinctly, those of geometricus. In the case of these examples there are unfortunately no males. But although the first pair of legs in the New-Zealand examples are distinctly shorter in proportion than those of L. hasseltii from Australia, yet this character is found also, in varying degrees, amongst examples from Australia and India, so that one cannot regard it as constant. Hab. N E W ZEALAND : Portland Island, Hawkes Bay (Robson); Canterbury (Brit. Mus.). III. Alphabetical List of Described or Figured Species of the Genus LATRODECTUS. LATRODECTUS. Abbot's figures 191 $ , 194 $ , 195 $ , 395 6 ad., 344 cS juv. All these are varieties of L. mactans Fabr. (Abbot's drawings in Brit. Mus. Nat. Hist. 1792). LATRODECTUS APICALIS A. G. Butler, 1877. Proc. Zool. Soc. Lond. 1877, p. 75, pi. xiii. fig. 2, etc. Hab. Galapagos Islands. Type in coll. Brit. Mus.-A variety of L. mactans Fabr. LATRODECTUS ARGUS Aud. in Sav., 1825-27. Savigny's ' Egypte,' p. 137, pi. 3. fig. 10. Hab. Alexandria.- This is L. tredecim-guttatus (Rossi). LATRODECTUS CAROLINUS (A. G. Butler), 1877. Proc. Zool. Soc. Lond. 1877, p. 75, pi. xiii. figs. 3, 3 a, 3 b. Hab. Charles's Island, Galapagos. Sub Theridion.-An immature female of L. mactans Fabr. LATRODECTUS CINCTUS Blackwall. Ann. Mag. Nat. Hist. (3) xvi. p. 341 (1865). Hab. Shire River, South-east Africa, Zambesi. Also Bogos and Scioa (Shoa).- This species is clearly a variety of the form called by Thorell hasseltii. I have before me a young female from Shoa, referred by Pavesi to " cinctus," which agrees with Blackwall's description. The form of the markings coincides also with that of Thorell's co-type of scelio from Cape York, which is now before me, the only difference being that there is a single transverse bar beneath, similar to that obtaining in the form called menavodi and also in some examples of tredecim-guttatus. The shortness of leg i. in proportion to the length of the carapace brings it nearer to the katipo variety of hasseltii which is found in New Zealand, etc. LATRODECTUS CONGLOBATUS C. Koch, 1838. Die Arachniden, iv. p. 41, fig. 274. Hab. Greece.-A variety of L. tredecim-guttatus Rossi. |
