1899. Silvestri, Contrib. Estud. Chilop. Chilenos., p. 3. 1905. Silvestri, Zool. Jahrb., vi, p. 749. 1907. Verhoeff, Bronn's Class. u. Ordn., p. 235. 1909. Silvestri, Boll. Mus. Lab. Zool. Portici, iv, p. 40. Distribution.-Patagonia, Chile, New Zealand, South Africa. Anopsobius patagonicus Silv. Silvestri, Rendic. R. Acad. Lincei, (5), xviii, p. 320. 1909. Silvestri, Boll. Lab. Zool. Portici, iv, p. 44. Patagonia. 14. Anopsobius patagonicus calcaratus n. subsp. (Pl. XVIII, figs. 451-453; Pl. XIX, fig. 454; text-figs. 18-22.) Antennae looking like a string of pearls, 15-jointed, with dispersed hairs, the last joint as long as the two preceding joints together. 5+5 teeth on the toxicognaths. No eyes. Labrum with branched bristles. The sickle-like bristles of the mandibles are short and strong, a little longer than the teeth, and few in number. I noted five, but the animals being badly preserved, this number must be verified. Teeth as in the Henicopinae. Coxal process of the first maxillae (fig. 454) furnished with simple bristles. Telopodite 2jointed, the basal joint distinctly demarcated on the median side. The terminal joint bears some large branched bristles and a few simple, somewhat curved bristles. Second maxillae as in Henicopinae, consisting of the coxosternum and the 3-jointed telopodite. The trochanter notch hardly visible. Terminal joint with branched and single bristles. The claw 5-lobed; the lobes in some cases spiniform, in others broad and flattened. The tergite of the toxicognaths or maxillipedes is freely visible as a broad plate. The tarsus and ungulum of the toxicognaths are fused, forming a tarsungulum as in other Lithobioidea (fig. 451). My supposition that the statements of Silvestri concerning the genus Catanopsobius are incorrect is again supported by this fact. Posterior angles of all tergites rounded; tergite 15 with a shallow sinus behind. Sternites with sparse hairs. Sternite 15 with dense and long hairs. The with two coxal pores on the fourteenth and fifteenth legs. ♂ with only one pore on these legs. Tibiae of legs 1-12 with pointed claw-like tooth distally on the outer side (text-fig. 18); the tooth of the twelfth pair is smaller. Tarsi of legs 1-12, 1-jointed; of legs 13-15, 2-jointed. Claw of all legs with one larger anterior and one TEXT-FIG. 18.-Anopsobius patagonicus calcaratus Att. Tibia of seventh leg of ♂. smaller posterior spinule. The hairs of the legs scattered, some TEXT-FIG. 19.-Anopsobius patagonicus calcaratus Att. Fourteenth leg of 3: telopodite. especially on the under side strong and spine-like. Joints 3, 4, and 5 TEXT-FIG. 20.-Anopsobius patagonicus calcaratus Att. Trochanter and praefemur of fifteenth leg of ♂. swollen and filled with a glandular mass (textfig. 19). Coxa of the last pair of legs with a long-pointed and hairy lappet bearing a little spine at the end (fig. 453). Third joint of legs 14 and 15 with one long, light-coloured spine on the under side (text-figs. 19, 20). Second joint of 15 with a similar but smaller spine below. The tergites of the praegenital segment deeply sinuate behind, slightly pubescent. Sternite of the praegenital segment undivided in both sexes. The v.pg -GP Tels. TEXT-FIG. 21.-Anopsobius palagonicus calcaratus Att. Posterior end of ♂, ventral view. genital appendages of the ♂ 4-jointed as in Lamyctes (text-fig. 21); the first three joints with two long bristles each; the last joint long and slender with minute lateral hairs in the middle (fig. 452). Sternite of praegenital segment of large, the appendages 3-jointed, the basal joint with two stout conical spurs, the median spur being smaller. The claw broad, blunt, and distinctly separated from the preceding joint (text-fig. 22). Cape Province.-Table Mountain, Platteklip Ravine (7672, 7678, 7680), Camps Bay (7930), Wynberg Hill, TEXT-FIG. 22.-Anopsobius patagoni Newlands Slope (7689, 7699), Anopsobius neozelandicus Silv. 1909. Silvestri, loc. cit., p. 45. New Zealand. Anopsobius productus Silv. 1909. Silvestri, loc. cit., p. 43. Chile. Gen. CATANOPSOBIUS Silv. 1909. Silvestri, Boll. Lab. Zool. Portici, iv, p. 46. Catanopsobius chilensis Silv. 1909. Silvestri, loc. cit., p. 46. Chile. Gen. DICHELOBIUS Att. 1911. Attems, Fauna S. W. Austral., iii, p. 151. Dichelobius flavens Att. 1911. Attems, loc. cit., p. 154. S.W. Australia. Dichelobius bicuspis Rib. 1923. Ribaut, Nova Caledonia, iii, p. 24. New Caledonia. Fam. LITHOBIIDAE Poc. 1901. Fam. Lithobiidae, Pocock, Ann. Mag. Nat. Hist., (7), viii, p. 488. 1907. Subfam. Lithobiinae, tribe Lithobiini Verhoeff, Bronn's Class. u. Ordn., p. 236. 1911. Fam. Lithobiidae, Attems, Fauna S.W. Austral., p. 154. 1926. Fam. Lithobiidae, Attems, Kükenthal's Handb. d. Zool., iv, p. 381. The pleurites of the toxicognath segment are not connected with one another on the ventral surface, and do not therefore separate the syncoxite of the toxicognaths and the sternite of the first pedal segment. The genital appendages of the ♂ are 1-jointed or 2-jointed styles. Tibiae of all legs without distal tooth-like process. The sides of the labrum nearest the median tooth are incised, resulting in the formation of two blunt teeth. Anal glands disappear in the adult. Nineteen or more, or very numerous antennal joints. Generally the twelfth to the fifteenth, rarely the eleventh pair of legs with coxal pores. Ocelli generally numerous, rarely wanting. Stigmata on segments 3, 5, 8, 10, 12, 14. All legs with hairs and spines, the latter regularly disposed and of importance for the systematist. This family is represented in the Palaearctic and Nearctic Regions by very many species. In South Africa only one species of the genus Lithobius and one species of Walesobius are found. One of them is markedly a Palaearctic species. In tropical India and South America the number of species is small. Gen. WALESOBIUS. 15. Walesobius excrescens n. sp. Chestnut colour. Length 14 mm. Antennae with 26 joints (3) or 28 joints (9). Toxicognaths with 2+2 teeth. Ten ocelli in three irregular rows, situated behind one large single ocellus. Tergites smooth and shining, with shallow grooves bearing a little hair. Tergites 1, 3, 5, 8, 10, 12 are bordered at the sides and behind, tergites 2, 4, 6, 9, 11, 13, 14, 15 only at the sides; on tergite 7 the border is interrupted in the middle of the posterior margin. Tergites 9, 11, 13 with long triangular teeth. Tergites 14 and 15 slightly sinuate behind. Sternites smooth, not furrowed. Legs with sparse hairs. Tarsi 2-jointed, coxae of legs 15 and 14 (9), or 15, 14, and 13, with one dorsal spine. No lateral spine. Coxal pores round, 4, 5, 5, 3. The lateral edge of the surface bearing the pores not elevated. Spines 1, 0, 3, 1, 0 claw simple. Legs 15 and 14 of ♂ not 0, 1, 3, 2, 1' of last pair of legs furrowed. The fourth joint of legs 15 of the ♂ with a small protuberance situated in a shallow groove at the distal end of the dorsal surface. This protuberance is short, cylindrical, and hollowed out like a crater. In a young ♂ of 10 mm. length this protuberance is scarcely visible. The last legs uniformly chestnut in colour; no joint of a distinctly lighter colour than the rest. 9, 2+2 genital spurs. Cape Town, in gardens (7658), Museum grounds (B. 987), Cape. |