168 SERRICORNIA. 



broadly red, and a whitish or whitish-yellow fascia on each behind 

 middle, which hardly reaches suture ; head large, finely punctured, 

 antennae black, strongly serrate ; thorax longer than broad, strongly 

 narrowed just before base, finely punctured ; elytra with rows of coarse 

 and strong punctures, which become obsolete behind middle, apex nearly 

 smooth ; legs black. L. 5-6 mm. 



In old timber ; occasionally found on fresh oak palings ; very rare ; taken in some 

 small numbers by Mr. S. Stevens in 1879 on fresh oak palings at Biggin Hill, Upper 

 Norwood, and also in the two succeeding years. Hertford and Windsor (Stephens). 

 Mr. S. Stevens' specimens were found in company with Teretrius picipes and 

 Lyctiu Irunnevs, and most of our collections owe these three species to his 

 liberality. 



CLERIffA. 



The members of this tribe are very numerous; as far as outward 

 appearance goes they bear a somewhat close resemblance to the Tillina, 

 but are distinguished by having the first joint of the tarsi covered by 

 the second, and only visible if viewed sideways ; the antennae are more 

 feebly serrate, and the last joints have a greater tendency to form a 

 club ; the eyes are emarginate in front ; the palpi are variable in shape ; 

 five European genera belong to the tribe, of which three are usually 

 recognized as British, and a fourth, Trichodes, has certainly occurred in 

 Britain on several occasions, and seems to have almost, if not quite, as 

 good a claim to admission as indigenous as Tarso&t enns ; as, however, 

 Mr. Gorham is of opinion that the two species which have been found 

 in Britain (T. alvearius and T. apiarius) are strictly Alpine insects, I 

 have only included them doubtfully ; there seems to be very little 

 generic difference between Opilo and Tarsostenus, and as regards the 

 distinctions usually given there seems to be some contradiction among 

 different authors. 



I. Antennao rather gradually thickened towards apex with 



a loose and not abrupt club. 



i. Last joint of maxillary and labial palpi more or less 

 strongly securiform. 



1. Eyes more strongly granulate and mere prominent ; 

 first joint of tarsi very short, second to fourth 



joints with emarginate soles OPILO, Lair.* 



2. Eyes less strongly granulate and less prominent ; 

 first joint of tarsi rather more distinct, second to 



fourth joints with very short, almost entire soles . TARSOSTENITS, Spin.* 

 ii. Last joint of maxillary palpi slender and not securi- 

 form THANASIMOS, Lair. 



* I can see no satisfactory characters on which to separate these genera ; the charac- 

 ters derived from the eyes are very unsatisfactory, and in some points the different 

 species of the two genera appear to differ inter se ; in our single species of Opilo, 

 for instance, the maxillary palpi have the last joint dilated and hatchet-shaped, 

 whereas Dr. Horn separates the American species of Opilo from Tarsostenut, ou the 

 grcuud that tliu ' last joint of the lubiul palpi ulono is dilated." 



