Ptenidium turgidulum. —Thorax distinctly aarrowet than the elytra ; elytra not 

 much attenu > riorly ; body narrow, rather inflated ; as in P. turgtdum, Bize Bmall. 



Hab. Caucasus. 



Ptenidium Penzigi. — Thoracic fovew shallow; elytra sparsely and very fii 

 punctured; basal and anterior fovea of the thorax very alightly impressed; bo 



ineous; thorax as broad as thi trongly rounded at the Bides, together with 



the elytra indistinctly punctured, and sparingly with hairs; elytra attenual 



posteriorly, a] I irge. Eab V.sia Minor. 



Ptenidium Heydeni. — Less compressed, and less convex; thorn y punc- 



tured, sides strongly rounded and broadly margined, margin castaneous, widesl near 

 middle; elytra with Beven rows of punctures on the shoulders; antenna' short, inter 

 ouits transverse, and yellow like the legs. Hab. Portugal. 



Ptenidium obotrites. — Basal and anterior thoracic foveas very distinct, interior 

 much larger than the exterior; body large and broad, moderately long, covered with grey 

 Hah. Germany, Mecklenburg. 



Actidium Reitteri. -Elytra two and a half times longer than the thorax; body 

 small and narrow; thorax slightly constricted, with the ba -ions indistinct; 



upper surfaa sely and finely granulated, clothed with shining silver-grey hai 



thorax broad at the shoulders; antennas rather slender, otherwise like .). Boudierii. 

 Hah. Morocco. 



Actidium Kraatzii.— Elytra rounded behind; thorax strongly constricted, nearly as 



the elytra : body depressed and elongate ; thorax finely reticulated, marked with 



■ rerona put ■ ■ in Pti turn, basal depression obsolete. Btrong ricted ; elytra 



with a shall sion on each side of the suture, diffusely granulated and clothed 



with long hair, three times as long as the thorax : antennae shorter than half the body, 



dark yellow. Bab. Hyeres. 



Actidium variolatum. — Thorax distinctly narrower than the elytra ; elytra strongly 

 convex, inflated towards the middle; antenna' and legs piceous brown ; basal depression 

 distinct: reticulation strong; lead and thorax closely marked with large, umbilicated 

 punctures, as in A. coarctatnm; upper surface very shining; elytra granulated in fine 

 diffuse curved rows ; antennas as long as half the body, with a distinct two-jointed club. 

 Hab. Dalmatii. 



Ptilium vexans. — The lateral channels of the thorax rather longer than the medial 

 channel, straight and convergent anteriorly, the medial channel not extending to the ba 

 or apical margins ; elytra transversely and distinctly granulated ; body small, convex, and 

 thinly pubescent. Hab. Corsica. 



(Ptilium) Sahlbergi. — Hinder angles of the thorax strongly rounded ; upper sui 



finel] reticulated and pu « scent, interspersed with lai tubercles: elytra 



margined, with the sutural angles rather acute ; antennae not half as long as the body, 

 more piceous than the legs. Hah. Finland. 



ripti m, together with the excellent figure given by 

 I»r. Flach, it is evident thai cannol belong to Ptilium, tl be Bubgi i 



l_b Dr. 1 I'll, will have to be used as its true generic ni i 

 and should take its place in the <L neral List immediately before Actidium.] 



Ptilium Hopffgarteni. lack, hi id om quarter narrower than the thorax. 



In the male the fifth vi ;htly widened behind, the seventh with a tr 



impression ; hinder tibiae with a fascicle of seta? on the inner side above the apex. Hab. 

 Croatia. 



Ptilium Lederi. — More robust than the preced ng; head one-third narrower than 

 the thorax : thorax broadest before the base. This is the largest >i thi genus. Hab. 

 Caucasus. 



Ptilium Schwarzi. Fuscous black, clothed with grey pubescence, strongly aluta- 

 ceous, smaller than /'. Caledani 'rax strongly constricted, with the hinder angles 



acute. Hah. Mecklenburg and Caucasus. 



Ptilium Reitteri. Eyes without colour, placed on an elevated excrescence, with 1-8 

 very minute facets : body m iderately convex, faintly reticulate, strongly alul 



B 2 



