Mr. J. Walton on the genera Oxystoma and Magdalis. 225 
rowed in front, dilated and rounded at the sides, and the latter 
crenulated before the middle ; the elytra very shining, profoundly 
punctate-suleate, the mtervals between the punctures narrow and 
distinctly elevated, the interstices of the sulci narrow, convex, 
nearly smooth or very finely rugose transversely. (Length 2—3} 
lines.) Gyllenhal justly observes, that it varies greatly in magni- 
tude ; it also varies in having the sides of the thorax more or ‘jess 
dilated and rounded in the middle. Mr. Waterhouse has a fine 
male specimen (34 lines) that has the thorax subglobose, with 
the sides remarkably dilated and rounded. I have a very small 
female specimen that only measures two lines in length, and has 
the thorax less rounded at the sides in proportion. The insect 
preserved in the Linnzan museum, which is pinned to the name 
carbonarius, agrees so well with the short description of Linnzeus, 
that I have no doubt of its authenticity ; it 1s a large female (84 
Imes), and the insect placed near to the label, but not upon it, is 
certainly a small male (2 lines) of the same species ; these insects 
agree so very closely in every character with Gyllenhal’s deserip- 
tions of Rhynch. carbonarius ( 2?) which he refers to Linnzeus, and 
R. atratus (3g), that there can be no doubt of their identity. 
Mr. Curtis has figured with his usual accuracy the female, and 
the head and rostrum of the male; ; I have frequently inspected 
the two msects in his cabinet, and I am now satisfied they are 
correctly referred by him to Cure. carbonarius of Linnzus, al- 
though at one period, from the variable form of the sides of the 
thorax and their small sides, [ was a little dubious. Germar has 
incorrectly referred this insect to Cure. atramentarius of Mar- 
sham* ; Gyllenhal in his 4th volume, in accordance with the opi- 
nions of Schonherr and Germar, has adopted that name, and 
cited carbonarius of Linnzeus as synonymous ; Schonherr in his 
Supplement (vu. p. 140) still adheres to the Marshamian name, 
and there refers it to Germar!, notwithstanding he had pre- 
viously received specimens from me (as will be seen below) of the 
true Cure. atramentarius of Marsham and Kirby. Cure. carbo- 
narius of Fab. (Mus. Fab.) is referred with doubt by Germar to 
Linneus ; it is elaborately and well described by Professor C. H. 
Boheman in the work of Schonherr under the name of Magda- 
linus carbonarius of Fabr., a name that must necessarily be 
changed. I possess an insect given to me by Mr. Bracey Clark 
(which he found upon the fir, pane sylvestris, at the sides of the 
Jura mountains in Switzerland) that agrees exactly with the de- 
scription by Boheman of Cure. carbonarius of Fab. 
Only seven specimens of this insect have come under my ob- 
servation : two in the collection of Mr. Curtis, taken by him from 
a hazel-tree near Ambleside the 19th of June; one in each of the 
* Ins. Spec. p. 1938. 
