T^lie Insect Fauna of Van Diemen^s Land. 317 



■^if the final joint of the male antenncB. A third species, 

 Notoxus porcatus i^) Fab,, belongs to the same genus, with 

 which it agrees in the formation of the foot, and in 

 habit, but it differs in the final joint of the max. palpi 

 not being club-shaped. 



The Ptiniores have one beautifully marked new Vtimis in 

 our collection: there is also a new species oiLymexylon. The 

 group of the Apatce (nearly related to the AnoUd) , which 

 has been broken up by Stephens (t) into a series of feebly 

 characterised genera, contains one new species of that genus 

 which still retains the name of Apate. To this group is 

 united also the genus Lyctus, (L. canaliculattis pubescens) , 

 whose chief characteristic is a double, instead of a treble 

 antenna-tip ; it is not found under bark, and in the ducts 

 of other insects, like those with which it has hitherto been 

 ranked, but it feeds on wood, like the entire family of the 

 Ftiniores, including the Apate (J) . The genus Xylotrogus 

 Steph. (§), of which one species X hmneus, Steph. (||) has 

 been sent from Van Diemen's Land, is very closely united 

 to Lyctus, and, as I think, separated from it on insufficient 

 grounds. This insect has been widely distributed in drugs 

 and other articles of commerce, and doubtless, this was the 

 way in which it was first introduced into Van Diemen^s 

 Land. 



The family of the SilpJicB is represented in Van Diemen^s 

 Land by the Silplta lacJirymosa of Schreiber. (*|[) 



(*) Fabr. Syst. Eleuth I. 287, 1. Kot.'cribripennis. Boisd. Faun. d. I'Ocean, 140, 

 3, might be the same insect, provided that its supposed habitat, New Guinea, be not 

 the real one. 



(+) Stephens, Illustr. of British Entomol., vol. 3, p. 349. 



(t) In this Archive, vol. 2, Part II, p. 46, I have pointed out the relationship ot Apate 

 to Anohice, and Westwood (Inti-oduc. to the Mod. Classif. of Inf. I. p. 2/7,) is also of 

 my opinion. Phloeotribus Cis. must however, be taken out of this group. The 

 most natm-al arrangement would be to embrace the Ptina, Lymexylcr, and Apatcs in 

 one family.of which the above-mentioned forms should represent so many different groups. 



(§) Ibid 116. 



(II) Ibid 117, Part I, pi. 18. f. 4. 



(V) Transact, of the Linn. Soc. VI. p. 194, 20, f. 5. 



