Anisotoma."] CLAVICORNIA. 25 



b. Second joint of antennae scarcely longer than 



broad, club usually light A. OBIONOA, Er. (grandis, 



Fairm.). 



B. Average size smaller (2-4 mm.) ; form short 

 oval. 



a. Colour dark pitchy-brown or blackish ; 

 length 3-4i mm. j antennae with the penul- 

 timate joints more transverse, and the last 



hardly as broad as the preceding .... A. PICEA, III. 



b. Colour brown-red or yellowish-red ; length 

 2^-3f mm. : antennas with the penultimate 

 joints less transverse and the last quite as 



broad as or broader than the preceding, 

 a* Thorax not quite as broad as elytra, with 



sides distinctly rounded, posterior angles 



blunt A. DUBIA, Kug,* 



b* Thorax as broad as elytra, with sides 



almost parallel from a little behind middle 



to base, posterior angles almost right 



angles A. OBESA, Schmidt* 



2. Anterior tibia? narrow. 



a. Thorax smooth on disc: mesosternum strongly 

 and sharply keeled ; striae of elytra with the 



punctures set comparatively far apart, 

 a*. Size smaller ; posterior angles of thorax 



right angles A. BADIA, Sturm. 



b*. Size larger j posterior angles of thorax 



slightly obtuse .A. SIMILATA, Eye.\ 



b. Thorax more or less plainly punctured 



throughout : mesosternum finely keeled, 

 a*. Striae of elytra more coarsely punctured A. SCITA, Er. 

 b*. Striae of elytra more finely punctured, 

 af. Posterior angles of thorax very obtuse, 



almost rounded A. OVALIS, Schmidt. 



b^. Posterior angles of thorax slightly 



obtuse, but projecting. 

 aj. Club of antennae unicolorous; 



upper surface ferruginous. 

 *. Club of antennae long and nar- 

 row, with the last joint not broader 



than the penultimate A. BEUNNEA, Sturm. 



**. Club of antennae broad, with 

 the last joint slightly broader than 



the penultimate A. CIAVICOBNIS, Eye. 



bj. Club of antennae dark ; upper sur- 

 face usually dark, or with thorax 

 dark and elytra ferruginous ... A. PTTNCTULATA, Gyll. 



(litura, Steph.). 

 ii. Club of antennae as a rule broad, with the last 



joint plainly narrower than the penultimate. 

 1. Anterior tibiae narrow. 



* These two species are so closely allied that they can hardly be regarded as spe c i 

 fically distinct. 



f It appears to be very probable that this species may eventually prove to be a form 

 of the preceding. 



