Mr. J. "Walton on the Genus Apion. 453 



coarsely rugose-punctate ; eyes very prominent, black : rostrum 

 short, cm'ved, very stout, punctulated and shining, the apex black : 

 thorax subcylindrical, dilated at the middle, rather deeply con- 

 stricted and margined anteriorly, narrowed posteriorly, convex 

 above, thickly and coarsely punctured : elytra obovate, very con- 

 vex, deeply punctate-sulcate, the interstices narrow and elevated, 

 scarcely as broad as the sulci : legs rather stout ; the tibise and 

 claws at their apices piceous. (Length 1^ — If line.) 



There is a great resemblance between the present species and 

 Ap. frumentarium, but this is a larger and more robust insect, 

 with the rostrum distinctly thicker ; the punctures on the head 

 and thorax are larger and deeper, and the legs stouter. 



This species is unknown to Germar and Schonherr ; it is appa- 

 rently rather rare ; I possess specimens taken in Yorkshire, and 

 others from a grass field in September on the west side of Turner^s 

 Wood, Hampstead : I never found it in company with Ap. fru- 

 mentarium. 



20. A. miniatum, Schonh. 



— frumentarium, Herbst, Marsh., Kirb., Germ., Staph. 

 Found in many places throughout England on the common 

 dock [Rumex obtusifolius) in July. 



21. A. Onopordi, Kirb., Germ., Gyll., Steph., Schonh. 



— (var.) rugicolle, Steph. 



— penetrans, Steph. non Germ. 



I have never seen an indigenous specimen of Ap. penetrans of 

 Germar (recorded as British) ; my foreign examples from Germar 

 have the habit of Ap. Onopordi, but they are nevertheless very 

 distinct from it : the thorax is less convex, and the punctures much 

 smaller ; the elytra are elongate, very obscure blue-black, and pu- 

 bescent. 



Common in Yorkshire and in many other places on thistles 

 [Onopordum Acanthium). 



22. A. radiolus, Marsh., Kii'b., Gyll., Steph., Schonh. 



Cure, aterrimus, Marsh., Gyll. vol. iii. 

 A. (var.) oxurum, Kirb., Germ. 



— (?) nigrescens, Steph. 



— validum. Germ., Schonh. 



The foreign specimens oiAp. validum sent me by Schonherr and 

 Germar are clearly identical with Ap. radiolus of Mar sham. 



Very abundant in Yorkshire and the south of England on 

 mallows {Malva sylvestris) in June. 



23. A. confluens, Kirby, Steph. 



— stolidum, Gyll., Schonh. 



For remarks on this species I must refer to the following 

 (Apion stolidum of Germ.). 



