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Show 198 ARACHNlDES. in chinks and cavities in walls, where they form a silken tube co. vered externally with particles of earth. or sand. In these retre . d . a1s they change their tegument, an , as It appears, after closing th opening, pass the winter. There also. the females lay their eg gs.e When they go abroad they carry their cocoon with them, attached to the anus by threads. On issuing from the egg the young on cling to the body of the mother and remain there until they are ab~s to provide for themselves. e 'fhe Lycosre are extremely voracious, and courageously defend their dwelling. A species of this genus, the Tarentula, so called from Taren. tu. m, a city of Italy, in the environs of which it is common ,u· highly celebrated. The poisonous nature of its bite is thought to produce the most serious consequences, being frequently foJ. lowed by death or Tarent-ism, results which can only be avoided by the aid of music and dancing. Well informed persons, how. ever, think it more necessary in these cases to combat the ter· rors of the imagination than to apply an antidote to the poison· medicine at all events presents other means of cure. ' Several curious observations on the Lycosa tarentula of the south of France have been published by M. Chabrier, Acad. de Lille, fascic. IV. This genus is very rich in species, which have not as yet, holf· ever, been well characterized. . L~c. tarentula; .llranea tarentula, L., Fa b.; Albin, Aran., tab. xxx1x; Senguerd. de Tarent. An inch long; under part of the abdomen red, crossed in the middle by a black band. The Tat·cntula of the south of France-Lycose narbonnai1e, Walck., Faun. Fran~., Aran., I, 1-4, is not quite so large; the under part of its abdomen is very black and edged all round with red. A similar species is found in the environs of Paris the r .. ,,o,e ouvn1 re, or L. fabrilis, Clerck, Aran. Suec., pl.' 4, t~ab. ii; Walck., Faun. Fran~., Aran., II, 5. Lye. saccata; .!J.ranea sac cat a L. • .IJ.raneus amentatus Clerck IV ... . . ' ' ' I ' tab. vm; L1ster, tlt. 25, f. 25. Small; blackish; carinaof the thorax, obscure reddish with a cinereous line· a little b un d le of grey hal.t ·s at the sup' erior base of the abdom'e n· legs f r · ' 0 a ~v1cl red, varied with blackish spots; the cocoon flat and greemsh-very common about Paris( 1 ). tl (l) For the other species see the Tabl. and Hist. des Aran. ofWalckenaer,and dl' e .l ~:Lune Fran"..a ise' A ran., Id· See also the second edition of the Nouv. Ut·e !. Htst. Nat., article Lycoae. J>ULMON ARliE. We will terminate this section with the subgenus M YRMEOIA, Lat., 199 Which seems to lead to the following one, and whose characters we have detailed in the Ann. des Sc. Nat., III, p. 27. The eyes form a short and broad trapezium; there are four before in a transverse line; two others, more internal .than the two last of the preceding ones, form a second transverse hne; the last two are behind the two preceding ones. The chelicerre. are stout. The jaws are rounded and very hairy at the end. The ligula is nearly square; somewhat longer than broad. ~he legs are long, and almost filiform; those of the fourth and first pa1rs are the longest of all. The thorax seems to bedivided into three parts, of which the anterior is much the largest and square, the two others resemble knots or humps. The abdomen is much shorter than the thorax, and is covered with a solid epidermis, from its origin to the middle. The Myr. futva, on which I have established this genus, inhabits Brazil; other species however appear to be found in Georgia, United States of America. In the second section of the Vagabund<£, that of the SALTIGRAD.JE called by others .!J.raignees phalanges, the eyes form a large quadrila: teral, the anterior side of which, or the line formed by the first ones ~xtend.s across the whol~ wi~th of the thorax; this part of the bod; 1s almost square or semi-ovoid, plane or but slightly convex above as wide anterio.rly as in the rest of its extent, and descending sud: denly ~n the sides. The legs are fitted for running and leaping. The thtghs of the two fore legs are remarkable for their size. . Th~ .!lraignee a chevrons blanca of Geoffroy, a species of Salttcus very common in summer on walls or windows exposed to ~he sun, ~oves by jerks, stops short after a few steps and raises Itself ~n 1t~ fore legs. If it discover a fly, or particularly a musquito, 1t approaches softly, and then darts upon the victim with a sin~le bound. It leaps fearlessly and perpendicularly on a ';an, bemg always attached to it by a thread, which lengthens as lt ad~ances. This same filament also supports it in the air, enables It to ascend to its point of departure, and ailows it ta be wafted by the wind from one place to another. Such, generally, are the habits of the species that belong to this division. Several construct nests of silk resembling oval sacs open at ~oth ends, between leaves, under stones, &c. Thither they rettre to change their tegument and to seek shelter in bad weather. lf.danger menaces them there, they leave it at once and escape Wtth speed. The females construct a sort of tent, which becomes the |