SMYNTHUEUS. iOl 



Geoffrey's description of this insect is still quite 

 sufficient : " P. viridis, oculis nigris, capite flavescente, 

 antennis in medio fractis." 



The antennae have the basal segments pale green, 

 the terminal one reddish. The segments increase in 

 length from the base to the apex. The basal one is 

 •004 of an inch in length, and *003 in breadth ; the 

 second is '008 in length, the third '013, and the fourth 

 •027. The segments do not taper, though each is a 

 little narrower than the preceding. The terminal 

 segment has about twenty whorls of hairs. The 

 mandibles are of the usual form ; one of them, how- 

 ever, is somewhat characteristic, from having the 

 penultimate tooth unusually projecting. The maxillte 

 resemble those of jS. fuscus (' Linn. Trans.,' vol. xxiii, 

 pi. xlv, fig 6). The feet resemble those of P. cursor ; 

 there are no tenent hairs. The spring is simple in 

 form (PI. LXIII, fig. 1). It has no tenent hairs, 

 and the terminal lamellae are without teeth ; the hairs 

 are simple, and shaped like a lady's riding-whip, but 

 rather rousfh. 



*&' 



Smyntliurus fuscus, De Geer. 



Podura glohosa fusca, Linn. Fauna Suec. 



— — De Geer. Kongl. Swensk. Wet. Ac. 1743. 

 La podure brime ronde, De Geer. Gesch. d. Ins, 



— hrime enfimnee, Geoffrey. Ins. Env. Paris. 

 Podura atra, Linn. Syst. Nat. 



— — Schrank. Enum. Ins. Austr. 



— — Fabricius. Ent. Syst. 



— signata, „ „ „ 



— atra, MuUer. Zool. Dan. Prod. 

 SmyntMirus fuscus, Latreille. Gen. Crust, et Ins, 



— signatus, „ „ „ 



— — Lac. Boisd. Faun. Ent, Env, Paris. 



— fuscus, „ „ „ 



— ater, ,, „ „ 



— fuscus, Burmeister. Handb. d. Ent. 



— ater, Templeton, Trans. Ent. Soc, vol. i, 



— signatus, Lucas. Hist. Nat. Amim, Art. 



— fuscus, „ „ „ 



— ater, „ „ „ 



— fuscus, Bourlet. Mem. Soc. Roy. Lille, 1839. 



— — „ „ „ Doiaai, 1842. 



