CURCULIONID^. 137 



B. petro, Herbst. (Kiif. vi. 366). This is certainly a separate genus ; 

 the formation of the club of the antennas puts this beyond question, and 

 the name Helmidomorjihtis (Elmidomorphus) of Cussac (Ann. See. Ent. 

 Fr. 1851, 366) must be adopted for it; Mr. Newbery speaks of the first 

 British specimen as having been taken by myself some twenty years 

 ago ; the name, however, has been in our lists for a much longer time, 

 but it stood for another insect. In the catalogue ^of Gemminger and 

 Harold it is regarded as synonymous with limosus, Gyll., and it is to the 

 latter insect that all the localities mentioned in vol. v. p. 288 of this 

 work must be referred, with the exception of Askham Bog ; four speci- 

 mens only have been taken since I captured mine, in company with 

 Archdeacon Hey, on August 6, 1880. 



B. binodulus, Herbst. This is an extremely rare species and has 

 been confused with B. nodulosus ; I am inclined to agree with Mr. 

 Newbery that the Sandwich and Arundel localities given by me (Brit. 

 Col. v. 288) must be referred to the latter insect. I expressed the 

 opinion myself that there was probably a mistake with regard to the 

 Arundel specimens. B. nodulosus has since been taken at Pevensey Bay 

 (Bennett) and Beccles, Sufiblk (Janson and PiflTard). 



B. limosus, Gy\\.—pet7'osics, W.C. This insect has caused the 

 greatest confusion in our collections, partly through one of its names 

 being confounded with ^jfe^ro, Herbst, It is allied to B. frit, but may 

 be distinguished by the characters of the thorax and the short tibial 

 spur. 



B. brevis, Gyll., has affinities with 7?. limosus, B.frit, and B. clau- 

 dicans ; from the former it may be known by the almost impunctate 

 striie, and from the two latter by the broad, shallow central furrow of 

 the thorax, and by its sides being strongly rounded at apex. 



B. tempestivus, Herbst, is the most elongate of our species 

 except B. cylindrvs. 



B. frit, Herbst, and B. claudicans, Boh., are very closely allied 

 and by some authors have apparently been considered identical ; the 

 latter is omitted in the preceding volume of this work (Brit. Col. v. 

 291), and must be inserted between B.frit and B diglyjytus, as it must 

 be regarded as a separate species ; it is the B. frit of Brisout, but not of 

 Herbst. Mr. Newbery distinguishes the two as follows : 



I. Three first joints of the posterior tarsi elon- 

 gate and sub-equal; elytra with finely 

 punctured strife,* and (in a fresh state) a 

 whitish punctiform spot in the third 

 interstice behind middle ; hind tibiae long, 

 strongly and regularly curved at apex, 

 with very long apical spur . . . B. frit, Herbst. 



* Mr. Newbery, however (I.e. p. 152), separates B. limosvs from its near allies 

 on the ground that the elytra! stria? are strongly punctured, whereas in the others 

 the strias are "feebly or not at all punctured except in rare forms oifrit.'' 



