1918.] 7 



6. — Eryfhrapion hracht/pterum, sp. n. 



Pallide I'lifum, abdotninis segmentis dorsalibns niffris ; alis ahbreviatis, 

 Lonr/. cum rostro 2|-3 mm. 



I see no good distinction from E, friimentarium beyond the abbre- 

 viated wings ; these are somewhat variable in length and shape, and till 

 a thorou2:h studv of the aedeao'us, includino^ the sac, shall be made, the 

 status of the form must be doubtful. 



The aedeagus is extremelj like that of E. frumentarium. In the 

 most successful of several mounts we have made, the cilia at the apex of 

 the tegmen are verv conspicuous. 



E. brachypteriim is a common insect at Brockenhui-st. and I believe 

 it lives on Rumex acetosella. It also occurs at Poole and Oxford. 



7. — Erythrapioii rithens Stephens. 



This species is well known. It has the rostrum rather longer in 

 each sex than frumentarium. The dorsum of the abdomen is pale 

 yellow. The aedeagus is very delicate, comparatively short, and has a very 

 slender apex ; the articulated portion of the struts of the median lobe is 

 short, but is rather longer than the unarticulated part of the sides of the 

 body that looks like a continuation of the struts. The cap-piece of 

 the tegmen is very delicate, elongate, and with a delicate chitinous 

 strip on each side at the tip, that may possibly be agglutinated cilia. 



E. rubens occui*s, with bracliypterum^ on Mumex acetosella at 

 Brockenlmrst, and Commander AValker has found it freely on Teucrium 

 at Oxford. 



8. — Erytlirapion sanguineum De Geer. 



I have never met with this species, and am indebted to my friend 

 Commander Walker for my specimens. It is a larger insect than rubens, 

 with a longer and less curved rostrum. The aedeagus is very like that 

 of rubens^ with a long cap-piece. The very minute incrassation at the 

 tip of the median lobe is turned downwards, not upwards as in other 

 species. This is indicated in the figure given by Wagner, Miinchen. Kol. 

 Zeitschr. iii, p. 202. 



Brockenhurst. 



October V2th, 1917. 



