Ai;AriiMiM<:s AKAM IIM.S -RETITELAR1 i:. 75 







UNYl'lllA l.a.reille. 

 T\Vit species of till-- Avails have been described from Unit, and one 



(formerly considered twoi species from amber. The single species \vi> can 



here add t.t tin- number is tolerably nearly allied to tin- amber species, as 

 wjJI as to I,. rotteiisi> of the Rhenish brown coal, though it is much larger 

 tlian tlir latter. 'The living species are found abundantly in all parts of 

 Knrope, excepting possibly tho must southern, and several species are 

 recorded from (Jeorn'ia aihlt'miii Chili. [ts presence al Flm-issant would 

 rather indieaie a mean temperate climate. The species are lively and savage 

 in character, cimstntrtin^ a rather complicated sheet ot' \vel, under the 

 middle ot' which the\ lie in wait in an inverted position (or iheir > 

 ( November, 1881. 



i. 



I'l. II. Rgs. 25, L'7 ( 3 ). 

 A .Minde male and its reverse represent this species; the reverse was 



. and tin- po>icrior portion figured liel'oi'e its antei'ioi- halt' was I'oiiir.l; 



hence the specimen is numbered thn^e times; it is tolerably well preserved. 

 especially the le-'s 'I'he lietter prefers ed half sho\\s a iiearl\- uniform 

 diiskv ti-'iire upon the stone, Imt on the reverse the aiidoineii is much 

 darker, almost Mack, and the palpi also are darker than the cephalotho 

 The latter is regularly oval, the anterior e\tivmit\ the more pointed : upon 

 this some ocelli mav lie seen, of which tliL're are appan-ntlv two app' 

 mate hut independent ones next the middle, ami on one side a pair of con- 

 fluenteyesof the same -'<'.<. all next the anterior ed^-e. The last palpal 

 joint is lare-e, sulti-ircular, or -onn-xvliat pyritoi-m, furnished interiorly with 

 a stout, strongly lieiit I'ih'hon, and is perched on a stalk Ion-- enough to carry 

 it liy its own width Keyond the margin of the coi'selet. Ahdoinen regularly 

 olio-. ,ite, a trifle hroader in front than behind, SOmewhal luiijjor than the 

 corselet, and roundly pointe,! behind. Le--s very lon^aml slender, except- 

 ing the third pair, which are short, all the femora rather sparsely furnished 

 with very delicate gpini 



Length of liody, 7.1""": of ahdomen, 4"""; breadth of cephalothorax, 

 2 mm ; of abdomen, -J.!:!""": diameter of palpal swelling, 1 ...... ; length of lirst 



pairoflegs, 1'' ..... : second pair, 15.5 mm ; third pair, G.!)"""; fourth pair, 14"""; 



first pair femora, l!""" : tibia-, 7"""; tarsi, 6 mi " ; second pair femora, 5 mm ; 



