170 [August, 



C. ci/Undnis is distinct from all the British species by reason of 

 its parallel form. Tt occurs nnrler bark of ])iiie (P/iiits xylve.sirU) 

 ill the Nortli of Scotlaml. I liave never taken it ; my s[)ecimens 

 were captured by Mr. G. C. Champion. 



G. sa()inatus and C. dentatus maybe known from the other species 

 of the first main jL^rouj) by haviiifr the tooth before the middle of the 

 side of the thorax. The callosities of the; anterior ani^les, though 

 occupying a good fifth of the side, are very little developed. The two 

 species can liardly be confused with one another. C. sacfinatus has the 

 elytra more oval and the sides of the thorax more rounded thnn has 

 C. denfaf/ifi,\vh\c]\ is a more jiarallel-sided and longer insecl, with rather 

 stout antenna. A very small form of O. dentatus occasionally 

 occurs. Mr. Newbery has one which is apiinrently immature, and 

 was named before it came to bim 0.fu.saicorn/s. I have two almost 

 black forms from a granary in Uolhorn, possibly these are the ab. 

 oiiger, Bris. 



G. nmhi'dtiis and ('. disfiiK/uendits. — These are two much smaller 

 insects, which ap|)ear not to vary much in size The small hiteral 

 space occupied by the thoracic callosities at once distinguishes them 

 from the previously mentioned species. They are very like one 

 another; for distinctions see ]<\iwler's British Goleoptem, vol. iii 

 pp. 819 and 822, but T must confess that some of the specimens 

 which T have seen ajipear to me to be inlcrinediate. G. umhratus 

 appears 1o be quite rare. I have one from Huntingfield and 

 another from Foxhali, near Ipswich. G. diftfiiiqucndiis is not 

 uncommon in granaries. There is said to be a bh-udc form of the 

 insect. 



G. scttfrl/atus = liicoJor. — Tliis, the smallest species of the gemis, 

 might be confused with the two last-mentioned insects, but the lateral 

 tooth of the thorax is very indistinct, and the callosities of the front 

 augles are but little developed. Newman, in Ent. Mag., ii, 202, gives 

 the wrong size 1 line, but the description has generally been accepted 

 as applying to the insect. In Stephens' collection, under the name 

 scufelJafiis, is an example of the species, but it is mixed with a 

 specimen of nciitanqulus and another of sarfinatus. 



The I'ough hair of the insects comprised in the second division is 

 best seen under a microscope. In G. cellaris and G. nffinis the out- 

 standing hairs are in rows, and in G. cellaris the callosities of the 

 front angles of the thorax, which vary considerably in shape, appear 



