224 Mr. J. Walton on the genera Oxystoma and Magdalis. 
Genus Maepauis, Germ., Steph., Curt. 
Magdalinus, Schonh. yu, p. 135. 
Thamnophilus Schinh. olim, Rhinodes Schinh. olim, Steph., Pa- 
nus Schinh. olim, Steph., Westw. 
The few indigenous species of this genus have been described 
by British and foreign authors under so many different names, 
which have been so often transposed, that the nomenclature and 
synonymy of several species are in the greatest confusion ; the 
sexual dissimilarities in the form of the rostrum and the clava of 
the antenne in many species, and the great variation in magni- 
tude in nearly the whole, have added to the difficulty of determi- 
ning the species correctly. 
A. Femora dentate. 
1. M. phlegmatica, Herbst, Gyll., Germ., Schonh. 
Linear-elongate, blue-black and subglabrous. Head narrow, 
oblong, subconical, depressed between the eyes, very closely and 
minutely punctured; eyes rather large, prominent, and obscure 
brown; rostrum subcylindrical, nearly as long as the head and 
thorax, porrect, a little bent, slender, black and shining, delicately 
punctulated throughout. Antenne rather longer than the ros- 
trum, the basal joint piceous, the club robust, pubescent and 
fuscous, inserted just behind the middle of the rostrum. Thorax 
longer than broad, constricted and deeply impressed in front, 
the anterior margin elevated, the base bisinuated, with the pos« 
terior angles produced and reflexed, almost flat above, very thickly 
punctured and dull blue-black. Elytra punctate-striate, the in- 
terstices very distinctly punctulated and shming, and greenish 
blue. Legs blue-black, with all the femora acutely dentate. 
(Length 21—23 lines.) 
I possess specimens of M. frontalis of Gyll. from Germar, which 
are identical with Curc. Alliaria and C. violaceus of the Linnzan 
cabinet, and I also possess Swedish specimens that agree with the 
description of Rhynch. violaceus of Gyllenhal. 
A specimen of this fine msect, which is new to our fauna, was 
first found by the Rev. Wm. Little four or five years ago, on the 
25th of May, by sweeping in marshy ground in Dalmeny Park, 
Scotland; subsequently Mr. R. N. Greville captured two others 
in the same locality, one of which he kindly presented to me: 
these are all that are known. 
2. M. carbonaria, Linn. (Mus. Linn.), Gyll. 2, Curtis d ¢. 
Rhynch., atratus, Gyll. g, vol. iii. 
M. atramentaria, Germ. (not Marsh.), Gyll. g 2, Schonh. 
This insect differs from the following m having the thorax nar- 
