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Show 186 AR.ACHNIDES. EPISINus, Walck. Eight eyes also, but they are approximated on a common eleva. tion; the thorax is nat·row and almost cylindrical( 1 ). In the remaining Ineq uitelre, the first pair of legs, and then the second, are the longest. Such is the PHoLous, '\Valek. Where the eight eyes are placed on a tubercle, and divided into three groups; one on each side consisting of three eyes, forming a tt·iangle, and the third in the middle, somewhat anteriorly, and com. posed of two on a transverse line. Pit. pltalangioides, Walck., IIist. des Aran., fasc. V, tab.x; Jl.raignte domestique a tongues pattes, Geoff. The body long, narrow, pale yellowish or livid, and pubescent; abdomen nearly cylindrical, very soft, and marked above with blackish spots; very long, slender legs; a whitish ring round the extremity of the thighs and tibire. Common in houses, where it spins a web of a loose texture, in the angles of the walls. The female cements het· eggs into a round naked mass, which she carries between het• mandibles. M. Dufour has found a second species, the Pholque a queueAnn. des Sc. Phys. V, lxxvi, 2,-in the clefts of the rocks in Moxente, Valencia. Its abdomen terminates in a conical point, and thus forms a sort of tail, like that of the Epeira conica. Like the preceding species, it balances its body and feet. The genital organs of the male are very complex. In the third section of the sedentary rectigrade spiders, the OR· BITELlE, or .llraigneea Tendeuses of others, the external fusi are almost conical, slightly salient, convet·gent, and form a rosette; the legs ar~ slender,. as in the p.receding section, but the jaws are straight and eVIdently wider at their extremity. The first pair of legs, and then the second, are always the longest. There. are etght eyes thus arranged: four in the middle forming a quadnlateral, and two on each side. The Orbitelre approach the Inequitelre in the size softness and diversity of colour of the abdomen, and in their shor: term of ;xist· ence;. bu~ their .web is a regular piece of net-work, composed of con· centnc Circles mtercepted by straight radii diverging from the cen· tre, w.here they almost always remain, and in an inverted position, at the circumference. Some conceal themselves in a cell or cavity • (~) Episinutt truncatus, Lat. Gener. Crust. et Insect. t. IV, p. 371. Italy, and environs of Paris. PULMONARIJE. 187 . h have constructed near the margin of the web, which'ls which. t eyborizontal, and at others perpendicular. Their eggs are someumes . . . . t d very numerous, and mclosed m a volummous cocoon. agglutmla e 'ds which support the web, and which can be extended The t 1rca . . . . r h f their length, are used for the divlstons of the microme-one ·fi t o . This observation was commumcated to us by M. Arrago. ter. LINYPHIA, Lat. The Linyphire are well characterized by the dispositi~n of_ their eyes: 1r ou r in the middle form a trapezium, the posterior side of which is widest, and is occupied by two eyes ~uch larger and ~ore d.ts t an t·, the remaining four are grouped in .p airs, one on. each std. e, and in an oblique line. The jaws are only widened at the1r superiOr extremity. 'fhey construct on bushes a loose, thin, horizontal web, attaching to its upper surface, at different points, or irregularly, ~eparate threads. The animal remains at its inferior portion, and m a re- 1versed position( 1 ). ULonoRus, Lat. The four posterior eyes placed at equal intervals on a straight line, and the two lateral ones of the first line nearer to the anterior edge of the thorax than the two comprised between them, so th~t this line is arcuated posteriorly. Their jaws, like those of the Epelrre, begin to widen a little above their base, and terminate in the form of a palette or spatula. The tarsi of the three last pairs of l~gs terminate by one small nail. The first joint of the two posterior ones has a range of small setre. The body of these animals, as well as in the following subgenus, is elongated and nearly cylindrical. Placed in the centre of their web, they advance their four anterior legs in a straight line, and extend the two last in an opposite direction; those of the third pair project latet·ally. These Arachnides construct webs similar to those of other Orbitel~, but they are looser and more ho.rizontal. They will completely envelope the body of a small coleopterous insect in less than three minutes. Their cocoon is narrow, elongated, angular at the margin, and suspended vertically to a web by one of its extremities. The other end is bifurcated or terminated by two prolonged angles one of which is ~horter than the other and obtuse; there are two (1) Linyphia triangularis, Walck., Hist. des Aran., V, ix, female; .llranea resu· pina &ylve8tria, De Geer; .llranea montana, L.; Clerck., Aran. Suec., pl. III, Tab. l;-.Oranea re8upina domestica, De Geer. |