NEW BRITISH SPECIES, ETC., IX 1873. 99 



having the three last joints decidedlj broader than the pre- 

 ceding. 



Bearing in mind the strong sexnal differences in Gnatho- 

 cerus and other allied genera of the Ulomides, the idea may 

 arise that these are male and female of one species ; but, 

 without having dissected any examples, I feel tolerably sure 

 that I have both sexes of T. ferrugineum. 



23. Otiorhtnchus tenebricosus, Walton (see Ent. Ann. 

 1872, p. 186, for references). 

 ? higdunensis, Boh., Schon., Stierlin, Marseul, E. C. 

 Rye, Ent. Mo. Mag., ix, p. 269. 



As O. lugdunensis, which appears to replace tenebricosus 

 in France, has no frontal foveola, and the anal segment of 

 the abdomen in the $ foveolate as well as coarsely striated, 

 — characters agreeing with my exponents of tenebricosus, — 

 I have been tempted to add somewhat to the ah'eady more 

 than sufficiently " vexata qucestio''' as to the correct specific 

 names of our two larger black species of Otiorhynchus, by 

 suggesting the application of the above quoted Bohemannian 

 name to the larger of them. I now increase the embroglio 

 by mentioning that Dr. Seidlitz of Dorpat (well known as 

 a monographer of the family), to whom I lately sent both 

 sexes of the Waltoniau tenebricosus and ^^^w^o-fuscipes, 

 with both sexes of a form of the latter in which the $ anal 

 segment is very deeply " gouged out" in the middle, replies 

 to me: — '•' Your Otiorhynchen hold I all for tenebricosus'''' ! 

 I believe that Dr. Sharp, who has lately applied with the 

 like elucidatory intention to another authority on the group, 

 has also been unable to obtain any satisfactory solution of this 

 question. 



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