1918.1 5 



3. — Eri/thrapioH cnienfafiim Walton. 



Tins species differs from ^. miniatum by its smaller size (long, 

 cum rostro 3 mm.) and by the thorax being almost cylindrical, scarcely 

 dilated in the middle. The punctuation of the head is coarse, that of 

 the thorax very dense but a little finer. 



The sexes are very much alike, in both the rostrum is short and 

 much curved ; it is a little longer in the female, but scarcel}^ longer than 

 the thorax. 



The aedeagus has been figvu-ed and discussed by Herr Hans Wagner 

 (Miinchen. Kol. Zeitschr. iii, 1906, p. 199), but it is necessary to make some 

 remarks on his views, though I do so with reluctance, as E. cruentcdum 

 is a rare species with me, and I have not been able to ascertain some of 

 the points of importance. Wagner is, however, incorrect in figuring the 

 struts of the median lobe as continuous with the body of the lobe ; they 

 are articulated thereto just as the fork of the tegmen is articulated with 

 the cap-j^iece, as is correcth^ shown by Wagner ; moreover, the tegmen is 

 represented in a very inadequate manner ; in order to show it properly it 

 should be dissected away from the median lobe. Herr Wagner takes so 

 much pains with his work and is so truthful that it is a pity his efforts 

 should be frustrated by defective methods ; and I cannot say whether his 

 figure of '' cruentatum " aedeagus refers to cruentatum, desidercdum, or 

 some other species. 



I believe the species I call cruentatum is probably that which Walton 

 had before him, but his description is so short that this can only be ascer- 

 tained with certainty by examination of his types, and I do not know 

 where they are, or even if they have been preserved. 



The only localities I can give with certainty for cruentatum as 

 understood by me are Brockenhurst and Oxford (Commander Walker),* 

 at both of which it occurs in company with E. frumentarium. No doubt 

 it and desideratum are mixed in British collections, and this may not 

 improbably have been the case with Walton. 



4. — Erythrajyion fraudator, sp. n. 



Pallide rufum^ ahdomine concolori ; alls elongatis. Long, cum rostro 3 mm. 



This is easily distinguished from E. frumentarium by the quite 

 pallid dorsal segments. As I have not detected any other difference 

 between the two it is useless attempting a long description. 



* The very distinct red Apion, which I have hitherto regarded as E. crueniatum, is found 

 sparingly at Oxford by sweeping rank marsh-herbage in summer and autumn, as well as in damp 

 tuita of grass and flood-refuse in winter. I believe its food-plant in this locality to be the common 

 eorrel (Sumex acetosa), and that it only occurs accidentally in the dry situations afl'ected by 

 £'. frumentarium and other species of the group. — J. J. W. 



