96 COLEOPTERA. 



black, with a transverse thorax, whieh is also more finely 

 punctured. 



105. Plectroscelis Sahlbergii, Gyll. ; Allard, Alt. 



570 (1860) ; G. R. Crotch, Cat. and loc. cit. 

 It appears that the insect known as P. Sahlbergii is dis- 

 tinct from that species, and has been described by M. Kuts- 

 chera (Wien. Monats. vol. viii, 1864), under the name of 

 P. suhccerulea. The true P, Sahlbergii has been taken near 

 Cambridge by Dr. Power, and is stated to be known by its 

 much shorter antennae. 



106. Thyamis absinthii, Kuts., Wien. Monats. (1862), 



217 ; G. R. Crotch, Cat. and loc. cit. 

 Mr. Crotch states this species to be very common on 

 Artemisia maritima at Weston-super-Mare and at Graves- 

 end. It appears to be closely allied to T. anchusce. 



107. Thyamis castanea, Foudras ; All. loc. cit. 1861, 



321 ; G. R. Crotch, Cat. Brit. Col. ed. 2. 

 Appears to be distinguished from T, brunnea by its less 

 strong and less regular punctuation, and by the long curved 

 white hairs at the apical edge of its elytra. 



108. Thyamis patruelis, Allard, G. R. Crotch, Cat. 



Brit. Col. ed. 2. 



109. Thyamis atriceps, Kuts.,Wien. Monats. (1863), 217 ; 



G. R. Crotch, Cat. and loc. cit. 

 "Three or four specimens in Mr. Wollaston's collection, 

 from the West of England." 



110. Thyamis medicaginis, Allard, Alt. 124, 72 j G. R. 



Crotch, Cat. and loc. cit. 

 " Five or six specimens in Mr. Wollaston's collection." 



