496 CLAVICOENIA — LATHRIDIIDAE. 



disc with two nearly parallel ridges in middle ; elytra with 

 strong punctured striae, interstices narrow, third callous 

 behind, fifth and seventh ridgelike, disc with four depres- 

 sions. L. f 1. Common. L. nodifer, Westw. 



It is doubtful whether L. pini, Mots., and L. undulafus, 

 Mots., are British insects ; the former is said to be of the 

 size, build and colour of L. lardarms, Imt with the thorax 

 trapeziform and narrowed toward head, with its anterior 

 angles projecting : the latter is elongate, convex, yellow- 

 red, with eyes black ; compared with L. angulatus it has the 

 sides of thorax more undulated and in relief, basal impres- 

 sion more marked, elytra more attenuate, with interstices 

 more distinctly raised. 



Corticarla. 



A, Side margin of thorax more or less distinctly notched. 

 a. Length 1:^ line. 



Oblong. Brown; antennae and legs lighter; pubescence 

 rather long. Thorax almost longer than broad, strongly 

 narrowed behind, deeply and closely punctured in wrinkles, 

 with a broad depression before scutellum, sides irregularly 

 notched, not bordered ; elytra almost double as broad in 

 front as base of thorax, dilated toward middle, with close 

 punctured striae. Common. C. p^mctulata, Marsh. 



h. Length not exceeding 1 line. 



I, Sides of thorax considerably rounded. 



1, Elytra distinctly broader than thorax. 



A A. Pubescence rather long ; interstices on 

 elytra wrinkled. 



Lighter or darker brown. Thorax broadest in middle, 

 deeply and closely punctured, with a round depression 

 before scutellum, sides indistinctly notched ; elytra some- 

 what dilated at sides, with close punctured striae. L. 1 1. 

 Eather common. C. crenulata, Gyll. 



Ji Ji. Pubescence short and scanty ; interstices 

 on elytra not wrinkled. 



Lighter or darker brown ; antennae and legs lighter. 

 Thorax broadest in middle, witli a small distinct depression 

 before scutellum, sides very finely notched; elytra mode- 

 rately convex, with punctured striae. Punctuation of 



