.] LONGICORXIA. 225 



pp. 411-41:5), but they present no particular points of interest; they are 

 found in wood of oak, lime, beech, &c. 



I. Elytra with vdlow bands and markings, without raised 

 cal'oxitics at l>ase ; femora gradually and not strongly 



clavate at ajx-x. 

 i. Form broader ; thorax transverse, with the anterior 



margin and uu oblique baud on each side about 



middle yrllow C. ABCrATUS, L. 



ii. Form narrower ; thornx about as long as broad, with 



the anterior and posterior margins yellow C. ABIETIS, L. 



II. Elytra red and furnished with a raised callosity on each 

 at base ; hinder part dark witli white markings be- 

 hind ; femora rather abruptly and strongly clavate at 



apex C. MYSTICUS, L. 



C. arcuatus, L. (Platynofus arcuatus, Thorns. ; s.g. Plagionotus, 

 Muls., H. K. W.). A rather large and robust species ; dull black, pubes- 

 cent, very finely punctured ; head with a transverse yellow band, an- 

 tennae robust and tapering, reddish-testaceous ; thorax considerably 

 broader than long, globose, with sides strongly rounded, with the an- 

 terior margin and an oblique band on each side behind middle yellow ; 

 scutellum yellow ; elytra rather broad, gradually narrowed behind, with 

 a line at shoulder, four dots at base, two of which meet at suture, and 

 four fasciae, the first often broken, the last apical, yellow; the yellow 

 fasciae consist of thick t >mentose pubescence, and are much lighter than 

 in C. arietis ; legs reddish-testaceous with the femora clavate, and more 

 or less black in middle. L. 10 17 mm. 



.Male with the posterior femora longer than in the female, and the 

 anterior tarsi strongly dilated. 



In decaying trees, old posts, &c. ; rare; Greenwich (West); Lough ton, Essex 

 (Power); Hertford, Epping, H.iinault, Chislehiirst, Suffolk, Newcastle, ami Cumber- 

 land (Stephens) ; Northumberland district, two specimens i perhaps the same as those 

 recorded by Stephens) (Bold). 



C. arietis, L. (Platynotus arietis, Thorns.; s.g. Sphcgeslhes, Chevr.). 

 Namnver and less robust than the preceding species, to which it is rather 

 closely allied; it may, however, be at once known by having the thorax 

 about as long as broad, with the sides not very strongly rounded, and 

 the anterior and posterior margins clothed with thick yellow tomentoae 

 pubescence; scutellum yellow ; elytra with a straight band near base, 

 not reaching suture, a band on each a little behind these meeting <>r 

 nearly meeting at suture and forming together an inverted V, a straight 

 band on each behind middle meeting at .^uture, and the apex, yellow ; 

 legs reddish-testaceous, with femora sometimes darker, posterior femora, 

 as in the preceding species, longer in the male than in the female. L. 

 7-14 mm. 



In old ]>o>ts, rails, &c. ; common and generally distributed throughout Kngland 

 from the Midland counties southwards; rarer further north; Manchester di 

 Northumberland and Durham district; recorded by Dr. Sharp as very rare in Scot- 



VOL. IV. Q 



