Latreille in his " Families Naturelles" has stated that An- 

 thicus populneus is the type of Bonelli's genus Xylophilus; 

 and that insect being unknown to me when my " Guide" was 

 printed, the little group to which it belongs, there formed a 

 part of the genus Anthicus. 



In the trophi, Xylophilus so closely resembles Conopalpus 

 (pi. 112), that it is evident they belong to the same family: 

 the antennae, however, are eleven-jointed in the former ; and 

 the penultimate joint of the tarsi, which Latreille did not de- 

 tect, is very minute instead of being bilobed. 



To complete the genus I shall describe the other two spe- 

 cies that inhabit Britain, but the second I do not possess. 



1. X. Populneus Fab.—Panz. 35. ^.—Gyl. 2. 500. 10. 



Antennae with the 2nd and 3rd joints subglobose, tes- 

 taceo-ferruginous, very finely and obscurely punctured, 

 clothed with a fine silky pubescence ; head sometimes 

 blackish ; base of elytra and a fascia in the middle, 

 denuded of pubescence. 

 This insect receives its name from living beneath the bark 

 of poplars : but Mr. F. Walker has found specimens at South- 

 gate upon the leaves of elm-trees in summer, and in the winter 

 in an old oak, as well as under the bark of a horse-chesnut- 

 tree ; and to his kindness I am indebted for the sexes. 



2. X. pygmaeus DeG. — Gyl. 2. 502. 12. — ferrugineus Payh. 



— melanocephalus Panz. 35. 5. — Boleti Mar. -p. 486. 

 Fusco-testaceous, distinctly punctured, finely pubes- 

 cent; antennae elytra and feet paler, thorax short, 

 transversely impressed. Gyl. 

 DeGeer found it in woods in June. Marsham says it in- 

 habits Boletus vetiiliniis, and that the larvae and imago were 

 living together. 



3. X. oculatus Payk. — Curt. Brit. Ent. pi. 299, mas. 



Mr. J. H. and Mr. Alexander Griesbach have liberally 

 presented me with specimens of this rare insect, which they 

 took off willows nearWindsor last July. Mr. Kirby, I believe, 

 has met with it in Suffolk, and Mr. Walker has found it at 

 Southgate upon a lime-tree. 



The plant is Scleranthus ammus (Annual Knawel). 



