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Ac \fi.os, \>i Gio^rnji/jy. Sec Accarov. 



A c A R o N Bny. See Berklf.yV Sound. 



AGAR US, the Tick or Mite, in Natural Hifoiy, fo 

 called, probably tioin a pr'iv. a;id ksijh Io cut, bccinife it is 

 (Icemod fo fir..ill lliat it cannot be cut, is a genus of infefts 

 bclonginji; to the order of upteni, in the Linnaean fyllcm, 

 and to the ciglith cIhIs called aniliala in the diftvibution of 

 rabriti'is. Tlic dillinf^uilliing ciiarafters of this genus 

 arc, that the mouth lias no probofcis, that the hauftellum 

 or fucker is included in a biv.Jve, cylindric Iheath ; that the 

 feelers are two in number, equal, and of the length of the 

 hauftwlluin ; that the eyes are two, placed at the fide of the 

 Lead, and that it has ;Mght legs. Fabricius reckons forty, 

 and Gmelin, in the lall edition of Lirinxus's fyilem, eighty- 

 two fpecles; of which, lome are inhabitants of the earth, 

 others of water ; foroe live on trees and plants, others 

 among (lones, and others on the bodies of other animals, 

 and even under their (liin. They are as follow ; viz. 

 elfpl.'ontinus, with an orbicular, deprefTed, livid body, and 

 a black ovated fpot at the bafe, found in India : JE^ypthis, 

 ovated and black, with a white margin, a native of Egypt : 

 Reduvius : Indus, oval and ferruginous, with a black 

 ovated fpot at the bafe, found in South America and India: 

 Aimrkanus, obovated and ruddy, with white fcutellum 

 and joints of the legs, found on the cattle and horfcs of 

 America : Sanguisucus : Ricinus or Tick : crajfipcs, 

 with the fecond pair of legs very thick, nimble, gregarious, 

 and found in the foil of Europe, and frequently in that of 

 gardens : Vefpert'd'toms, with an angulated thorax and un- 

 guiculated legs longer than the body, called the mat-Iou/i; 

 and found on the murine bat : pajj'crinus, found on various 

 fparrows, and called the fparrow-loufe : motator'nis, of a 

 yellow colour, and with its firft legs very long and adapted 

 to fwift motion, found on muflirooms : Apbidloidcs, red, 

 with the fore-legs long and fit for running ; and the hinder 

 part of the abdomen terminating in two horns ; and lodging 

 111 the putrefcent wood of Europe : cohriptratus, black, 

 with acute-angled TkIcs, found under the bark of trees in 

 Europe : tclar'nis, of a greeniih-yellow colour, with a brown 

 fpot on each fide of the abdomen, found on plants in Europe 

 that are not much expofed to the wind, or piaccd in a hot- 

 houfe, which it penetrates with its iling, and fuffocates ; 

 and frequent on the leaves of the lime-tree in autumn : 

 S'lra or fvIiTE : laS'is, with an ovated, obtufe abdomen, and 

 the hinder part having four declining briltles as long as the 

 body, found in four cream and unwafhed milk-vefiels : 

 Jy/eiiteyiii, with two briftles to the legs, and four horizontal 

 briRleS at the hinder end of the ovated abdomen, of the 

 length of the body, found in beer-eaflcs, &c. : esidcerans, 

 with very long fctaceous legs, and the two fore-legs fhort, 

 fuppofed by fome to be the caufe of the Itch, and neftino- 

 in the ulcers of this difeafe, but by others not to be fuffi- 

 ciently diftincl from the A. fcalnei : geniculatus, black, with 

 lub-globofe joints of the tliighs, found on the dead branches 

 of trees : tiiulorius, with a red hairy abdomen, the hinder 

 part obtufe, and the anterior tibia; of a paler colour, a native 

 of Surinam and Guinea, and lately introduced into the 

 praiiice of dyeing : aquat'icus, with a fanguineous deprefled 

 abdomen, covered with a velvety down, obtufe behind, found 

 fwimming brilkly in the frelh waters of Europe : holofenrus, 

 with an abdomen like that of the fonner fpecies, and found 

 in dry Utuations in Europe and America, generally under 

 the fiirface of the earth, and fometimes among hay : haica- 

 rum, with a diilended red abdomen, and fides of a darker 

 hue, found on hemes, and particularly currants and goofe- 

 berrics : mufcorum, with a red abdomen, and hinder legs 

 very long and filifonn, found on the moffes of Europe : 

 Batatas': gymno^tcnrunii with a red abdomen, and two 



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crlmfon-colourcd fpots on the fides, found on bees, wafps, 

 the libellula, alilus, and other infeds : co'eop/ratorum, with 

 an ovated red body and whitilh anus, freqi ent on bcet'es, 

 whence the common black beetle is fomet mes called the 

 loufy beetle : niptjiris, brown, with a do^fal line of two 

 colours, frequent under the ftones of Europe : longicornis, 

 red, with bifid antennx longer than the roilrum, found In 

 the rocks of Europe : lilloraUs, ovated and red, with a 

 fubulated extended roftnim, found among the rocks on 

 the (hores of Europ-' : fungorum, of a reddilh-brown colour, 

 with a fubglobofe, fmooth, unfpottcd abdomen, gregarious, 

 and moving flo^'ly on difle;-ent fungi : trcmelLi:, iubglobofe, 

 of a black-blueiih colour, found on the Tremella juu'ipi- 

 rana: fcaher, depreded and a(h-co!oured, and rough f;ci.-s, 

 found in the earth at the beginning of fpring : faliciniu, 

 red, with a double brown dorfal line, and in the fore-part 

 bifurcated, found fwiftly running on the willows ; croceus, 

 yellow, with a red fpot on the fides of the thorax, found on 

 the galls oi the Willow : Ursellus : g''oJ[iis, ovated, 

 fomewhat deprefTed, of an olive-brown colour, with a 

 blackifii fcutellum, and the bafe and ap;x of a golden cop- 

 per colour, found on the animals of South America, and 

 fuppofed to be the fame with the elephanfmu- : und.;tus, 

 orbiculated and black, with waves of white on the fides, 

 and a black fpot, found in New Holland : Ltp/ienjis, ovated. 

 and brown, with a thick margin, found at Leipfick : Igunna; 

 ovated and ipotted with gold, with the margin of the ab- 

 domen ilriated and fomewhat jagged, jjxing itfelf to the 

 throat of the lacerta Iguana ; Cnycrjis, ovated, and va- 

 ried with gray and white, with the hinder margin elevated, 

 .and ftriated, a native of Cayenne : Jiiieatus, ovated and fer- 

 ruginous, with two white wavy lines, found in America r 

 aureolatus, obovated and brown, with two fmall lines and a 

 palmated fpot on the hinder part, of a green and gold eo- 

 loiu', a native of America : holfatus, ovated and ferruginous, 

 with a brown thorax : palTipc , ovated and brown, with the 

 antennx and legs of a pale while: hifpanus, ovated and black, 

 with ferruginous legs and white joints, found in Barbary : 

 HiRUDO : vibrant, roundiili, teftaceous, and without fpots, 

 with the fore -legs longer than the others, found in Cayenne : 

 domcjlicus, white, with two brown ipots, an ovated body 

 contrafted in the middle, very long hairs, and equal legs, 

 found in the houfes of Europe, but fuppofed not to be dif- 

 ferent from the y7;-o.- ylYJ^/V/', white, with reddifh legs, and 

 the hinder having four very long brillles, and much lefs than 

 X\\tJivo, and found in the ulcei-s of perfons iufefted with the 

 Itch, exciting irritation, and fuppofed to be either the caufe, 

 or rather a lymptora of the difeafe : 'Aojlent, roundilh and. 

 whitilh, with a red abdomen, found in the fuci of tlie Norwe- 

 gian feas : phalang'n, ovated and red, with an extended roilrum 

 and long legs, frequent on the phalangii and fpiders : 

 phaetan'is, ovated, and behind acuminated, with the legs 

 fafciculated at their apex, found on the phaeton of the 

 Southern Ocean : fucorum, pale-coloured, with two winding 

 black lines and the hinder legs verv fhort and bent, foundon the : 

 fuci of the feas of Norway : rufipes, ovated and white, with, 

 ferruginous legs, found in Europe : Ikhenisf with the firft 

 and fourth pair of legs longer, and the fecond thick, found 

 on the lower furface of the lichen : leucurus, with the fecond: 

 legs very thick, a tellaceous body, and a pale-coloured anus, , 

 iound on carcafes : lociijla, with four briftles in the hinden. 

 part, and as many on the fides : conferva, ovated and brown, . 

 with tlic fecond joint of the legs fmall, and the third fur- 

 niilied at its apex with a long briille, found in the filaments 

 of the conferva under water, but dying out of the water : 

 cadaverum, with a body formed with t\\-o lobes and four 

 long briftles to the hinder part of the body, found on the 

 carcafes of infeds : deJlruSor, ovated, with many long 



briftles 



