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Show 220 ARACHNIDES. LIMNOCHARES, Lat. The sucker mouth of the Ilydrachnre, but the palpi are simple(!). Others,-MIOROPIITHIRA, Lat.-are removed from all the rest of the Arachniclcs by the number of their legs, which only amounts to six. They are all parasitical. CARis, Lat. A sucker and apparent palpi; the body rounded, flat, and covered with a scaly skin(2). LEPTus, Lat. A sucker and palpi as in Caris, but the body very soft and ovoid. Leptus autumnalis; .!lcarus autumnalis, Shaw, Zool. Miscell., II, pl. xlii. A very common species, in autumn, on grasses and other plants. Having reached the person of the passenger, it climbs up, insinuates itself into his skin at the root of the hairs, and occasions an itching as intolerable as that produced by a regular itch. It is called the Rouget in France, and in fact it is of a reddish colour and very small. The remaining species are found on different Insects, and belong to the division of the Trombidia !texapoda, Hermann(3). AoLYsiA, Aud. The body shaped like a bagpipe, and furnished with a siphon, without distinct palpi, situated beneath its anterior extremity, which is narrowed, cut·ved and obtuse; very small legs. The Aclysire live on the Dytisci. But a· single species-.8c. dytisci, Mcm. de la Soc. d'llist. Nat., I, p. 98, pl. v, fig. 2- was at first known, the one on which M. Victor Audouin esta· blished the subgenus. Count Manheiren, a Russian naturalist, to whom the science is much indebted for his entomological essays, and his readiness to second the efforts of those who study it, has, a!> it appears, discovered another. . (1) .!Jcartts aquaticus, L. ;-.!lcarus aquaticus lwlosericeus, De Geer, Insect~ VII; IX, 15, 20;-'Jlrombidium aquaticum, Ilerm., Mem. Apter. I, ii. (2) Caris vespertilionis, La.t., Gener. Crust. et Insect. J, 161. .. (3) Trombidium insectm-um, Herm., Mem. Apter. I, 16; De Geer, Insect., VII, vu, .s:-Tromb. latirostre, Ilcl'ln., lb., 15;-Tromb. cornutwm, Ib., n, ii;-Tromb. aplttdzs, lb.; De Geer, Insect., VII, vii, 14;-Tromb. libellul:r, llcrm. lb.; De Gc:r, lb., VU, 9;-Tromb. eulici.,, Herm. lb.1 De Geer, lb ., VII, 12;--Tromb. laptdum, Ilerm., Jb., VII, 7. TRACHEA RilE. 221 ATOMA, Lat. Neither sucker 'nor pal pi visible, the mouth merely consisting of a small orifice on the chest. The body is oval and soft, the legs very short( 1 ). The OcYPETE, Leach, . Belongs to this tribe by the number of legs; but, according to him, these animals are furnished with mandibles(2). (1) JJ.carus parasiticua, De Geer, VII, vii, 7;-Trombidium parasiticum, Hermann. (2) Ocypete rubra, Leach, Lin. Trans., XI, 396. On the Tipula:. |
