OCR Text |
Show 452 MR. H. R. nOGG ON AUSTRALASIAN SPIDERS. [Dec. 2, light red fringes ; sternum red-brown, yellowish-brown hair. Abdomen dingy yellow-brown above, brighter below ; three pairs of dark spots on back, the anterior and posterior pairs being round, and the median longitudinal lines as described by L. Koch in his I. dolosa and I. villosci; rather long downlying yellow hair ; on the underside only a slightly darker coloured narrow transverse stripe behind the genital fold, and a faint shield-pattern. The legs and palpi are bright reddish brown, with long upstanding brown hair, the scopulse darker yellowish grey. The cephalothorax is rather flat, rounded at sides and broad in front; clypeus low, with a long and deep median sulcus, but only faint side strife. The front row of eyes are equal in size, the median pair being nearly two-thirds their diameter apart and nearly half as much again from the laterals, the row being straight, they are their diameter from the median of the rear row, which are two and a half diameters apart (three-quarters of median) and three from their laterals. There are no spines on the upperside of tibia iii. or iv. This is very like Isopeda villosa L. Koch, and the specimens from Central Australia (Horn Exp. pt. ii., Zool. p. 339) which I took to be I. dolosa L. Koch. It differs from the former in the front eyes being equal instead of laterals largest, and the side-eyes farther from middle than the latter are from one another, and the rear median nearer together than their distance from the side; the transverse stripe on the underside of the abdomen and the sternum are not so dark. They also differ from the latter in having the front row of eyes farther apart and not equidistant; legs longer in proportion, and cephalothorax not quite so flat. Measurements in millimetres. Cephalothorax Abdomen ........ Mandibles........ Legs Palpi Long. Broad. I1 al l2 1I H i 17i 13| 2 Coxae. Tr. & fem. 1. 5 13 2. 5 1412 3. 5 12 4. 5 111 9 1 5 Pat. & Metat. tib. & tars. 6, 11 15 50 (17) 20 17 561 11 10 38' 13 111 = 41 4 5 164 . „ Jf " °m tJie mtenor ot b. Australia, sent to Brit Mus by Mr. H. P. Woodward. I sopeda robusta L. Koch. Isopeda robusta L. Koch, Die Arachn. Austr. 1875, p. 691. Koch described this from a single female in the Vienna |