308 Mr. J. Walton on the genus Apion. 



the collection of Mr. Waterhouse ; he has no distinct recollection 

 where he found it. 



64. A. Waltoni, Stcph., Curt. MSS., Schonh. in Litt. 

 — Curtisii, Schouli. 



This insect approaches very closely to the preceding, but differs 

 chiefly in having the vertex of the head adjacent to the thorax 

 thickly punctulated, the punctures frequently confluent, the frons 

 minutely punctured, the punctures arranged in rows, sometimes 

 confluent, rarely rugulose-punctate, and in having one fine im- 

 punctate stria in the centre, occasionally indistinct ; the basal 

 joints of the antennaj black or inclining to piceous, the clava 

 ovate; the thorax subcylindrical, slightly rounded at the sides 

 and rather convex above, with a .short dorsal line or a large punc- 

 tm'e at the base ; the legs distinctly shorter. 



Professor C. H. Boheman, in the celebrated work of Schon- 

 herr, has described a species under the name of Aj). Curtisii of 

 Stephens, taken from specimens forwarded by INIr. Waterhouse, 

 and retm'ned to him ; these have been placed in my hands for 

 examination, and it is very much to be regretted that they are 

 not the true A2). Curtisii of Kirby's MSS., but are undoubtedly 

 the species described by Mr. Stephens under the name of Ap. 

 Waltoni. I sent specimens of this insect to M. Schonherr named 

 Ap. pavidum of Germar, citing Ap. Curtisii of Stephens nee 

 Kii'by as a sjmonjTn, which ehcited the following obsen^ation : 

 " Ap. Waltoni, Schh., nova spec, forte — Apioni j)lumbeo proximum 

 — non pavidum, Germ, (vix Curtisii, v. p. 430. n. 163, mihi non ad 

 manum.^^) I likewise sent specimens to Dr. Germar ; his opinion 

 of them is as follows : " Ap. Waltoni, Steph.^ a new species for 

 my collection." 



I found this insect rather plentifully on the chalky downs near 

 Brighton in the autumn. Taken by Mr. S. Stevens near Biighton, 

 Arundel, Bmy-hill and Dorking, from June to October ; it ap- 

 pears to be confined to a chalky soil. 



65. A. vorax, Herbst, Kirb., Gyll., Germ., Steph., Schonh. 

 Cure, villosulus $ , Marsh. 



fuscicornis ^ , Marsh. 



A. pavidum, Mus. Steph. 

 The male difi'ers fi*om the female in being more pubescent, and 

 in having the rostrum shorter, fihform, and covered with hairs ; 

 the antennae and then' articulations longer and distinctly stouter, 

 the four or five basal joints rufous ; the mesostethium armed 

 where it terminates between the posterior coxse with an acute 

 tooth ; the anterior tibise longer, compressed internally and ex- 

 ternally at the base, and in front and behind at the middle ; and 

 the basal joint of all the tarsi longer. 



