NEW BRITISH SPECIES, ETC., [X 1865. 119 



101. Trichopteryx brevis, Motsch. Bull, de Z-ilosc. 1845, 

 533; Rev. A. Matthe\vs, Ent. Monthly Mag. vol. i. 

 p. 175. 



Mr. Mattbews, in introducing this species, remarks that it 

 is of much rarer occurrence than, though generally con- 

 founded with, T. pygmoia, to which it bears no resemblance 

 except in size. T. jnjgiiKBa appears to be parallel in shape 

 throughout, yery black, without tubercles on tlie prothorax, 

 and with the basal joint of the anterior tarsi dilated ; while 

 T. brevis is clothed with a pale brownish pubescence, and 

 its thorax is dilated towards the base, with the sides some- 

 what rounded, and covered with distinct tubercles prettily 

 arranged in wavy rows, the interstices being deeply aluta- 

 ceous : its head, also, is ornamented with tubercles in per- 

 fectly straight rows. It further differs from T. jiygmcea in 

 having the sides of the elytra sti-ongly margined, the apical 

 joint of the antennae obtuse, and the anterior tarsi simple. 



102. Ptenidium turgidum, Thomson, 6fv. af Yet. Ac. 

 Forh. 1855, 340, 2; id. Skand. Col. iv. 110, 3; Rev. 

 A. Matthews, Ent. Monthly Mag. vol. i. p. 175. 



One specimen of this species was taken by INIr. Water- 

 house near London, in 1862, and Mr. Matthews has met with 

 another example in the collection of the late Mr. Griesbach. 



P. turgidum appears to be equal in size to P. apkale, 

 and to be known from its ally, P. Gressneri., by the dilated 

 sides, and four small equi-distant foveas near the basal margin, 

 of its prothorax, and also by the very obtuse apex of its 

 elytra : from the rest of the genus it seems to differ in its 



