Apion. | RHYNCHOPHORA. 137 
aaaa§, Pubescence strong; elytra moderately convex. A. SENICULUM, Kirby. 
bbbbs. Pubescence scanty ; elytra depressed . . . A. TENUE, Kirby. 
bbbbt+. Thorax as long as broad or transverse. 
aaaat. Forehead with a broad impression in front ; 
rostrum of equal length in both sexes . . . . A, PUBESCENS, Kirby. 
bbbbt. Forehead even ; rostrum a little longer in 
famale PANO Aleisha en wha Name tallow <u eames hs ocAS CURTIST I) alt. 
(curtulum, Desbr.) 
bb*, Rostrum straight or only slightly curved (more 
robust and broader than in the preceding species) .* 
aa}. Base of elytra bordered between scutellum and 
fourth stria ; upper surface of a reddish viet me- 
fale colour; size larger . . . . A. LIMONII, Kirby. 
bb}. Base of elytra not bordered ; size smaller. 
aat. Head and thorax black ; elytra metallic (blue, 
greenish-blue or violet). 
aaa. Elytra short, strongly dilated and rounded be- 
hind, convex. 
aaa*. Sides of thorax almost straight ; temples 
and throat almost impunctate . . . . . A. MARCHICUM, Herbst. 
bbb*. Sides of thorax somewhat rounded ; tem- 
ples and throat thickly and plainly punctured . A. AFFINE, Kirby. 
bbb. Elytra long, feebly dilated behind, depressed in 
front. 
aaa*, Forehead distinctly punctured, rather shiny; 
rostrum in both sexes evidently pete than the 
head . . . . A, VIOLACEUM, Kirby. 
bbb*. Forehead almost shagreened, ‘very dull ; 3 ros- 
trum shorter than the head in male and about as 
long as the head inthe female. . . . . A.HYDROLAPATHI, Marsh, 
bb. Head thorax and elytra unicolorous black. 
aaa. ‘Scutellum very small, scarcely visible; punctu- 
ation of thorax less close with central line impunc- 
tate; sizesmaller. . . 2, 2) AWISEDI, (Germ: 
bbb. Scutellum rather large, oblong = " punctuation of 
thorax very close; size ‘larger . PG or toe dee arin Kee 
(curtirostre, Germ.) 
I have for convenience, sake followed Bedel in indicating the chief 
groups, although I have not kept to his arrangement; they are, how- 
ever, to a great extent merely artificial groups and simply adopted with 
a view to help the student in the identification of the species. 
Group l. 
Rostrum subulate at apex - colour dark blue or black with legs entirely 
dark (on various Leguminose), 
A. pomone, F. (cyanescens, Kirby). Head and thorax black or 
blue-black, elytra blue or greenish-blue, finely and scantily pubescent 
above, more closely beneath ; head strongly sculptured, rostrum broad 
behind and much narrowed i in front, gibbose beneath before the insertion 
of the antennz, with a smooth central line on the upper surface at base 
which is more apparent in the male ; antennz black with the first joint, 
* vide p. 135, line 6. 
