1922.] 193 



AULONIUM RUFICORNE Ol. AND HYPOPHLOEUS FRAXINI Ktjq., TWO 

 SPECIES OF COLEOPTEEA NEW TO THE BEITISH LIST. 



BY T. HUDSON BEAEE, B.SC, F.E.S., D.L., AND 

 HOKACE DONISTHOEPE, F.Z.S., F.E.S. 



Aulonium rvficorne 01., Entom. ii, 18, 13, pi. 3, f. l^=^hicolor 

 Hbst., Ka£. vii, 285, t. 113, £. 2. Three specimens of this rare and 

 interesting sj^ecies (one of which, however, was dead and broken) were 

 observed under bark of felled Scots pine in the Dean Forest in the 

 burrows of Tomicus laricis F. It is a very distinct insect, the border 

 of the head, the antennae and legs, and the basal half of the elytra are 

 red, the rest of the insect being black ; it is smaller than trisulcum 

 Geoffr., the only other European and British species of the genus ; that 

 insect is also uniformly reddish in colour. 



Granglbauer records it as rare under oak bark in Central Europe and 

 in the Mediterranean area *. 



Ferris has described the larva (Ann. Soc. Ent. France, ser. 3, i, 610 

 (1853)), and he stated that it occm's in the burrows of Tomicus 

 laricis F., and that larvae which hatch in May emerge as perfect 

 insects in October. We took a number of the larvae, which we hope to 

 breed out later on. 



S.ypop1iloeus fraxini Kugel., Schnd. Mag. v, 1794, 527. From 

 under the bark of the same logs of Scots pine we took about 12 

 specimens of this fine addition to our fauna ; they wei'e found ex- 

 clusively in the burrows of Tomicus sexdentaUis Boerner, on which 

 this insect is parasitic. It is rather bright reddish in colour, and is 

 about the same size as hicolor Oliv. ; it is closely allied to pini Pz., 

 but is larger, the thorax is not so elongate, and the anterior angles of 

 the thorax are slightly excised. 



The Continental records, central and boreal, show that this insect 

 is always found as a parasite in the burrows of T. sexdentatus Boerner ; 

 we found the larvae and are endeavourino; to rear the insect. 



* At Besika Bay, on the Asiatic side of the entrance of the Dardanelles, I met with Aulonium 

 ruficorne in some numbers in the autumnal mouths of 1876 and 1877. It occurred under bark of 

 small felled pines, in company with two species of Tomicus, Paromalus, Plali/soma, Plec/aderus, 

 etc., etc. Mr. Champion has recorded it as having been found by himself in abundance in Cors'ea 

 in 1904, in burrows of Scolytids in pines, and he has recently received specimens of it from the Landes, 

 also from pines. — J. J. W. 



August \Uh, 1922. 



