slender, subcastaneous, 2nd joint pieeous, the apex palest: 
tips of mandibles and base of tibiae pieeous : thorax trans- 
verse : elytra with a deep channel on each side the suture, 
not reaching the scutellum, and 9 or 10 obscurely punc- 
tured striae. 
Taken the beginning of July and end of August on Umbel- 
liferae by Mr. Haliday : it has also been captured near Hert- 
ford and Oxford. 
2. A. pallens Linn., Mars . 
Male ? 2f lines long: somewhat oblong and slightly de- 
pressed, ochreous, silky, thickly and minutely punctured : 
antennae stout and castaneous, excepting the basal joint 
and apex : tips of mandibles and base of tibiae and tarsi 
of the same colour or pieeous ; basal joints of the latter 
stout : thorax slightly transverse-quadrate : elytra with a 
channel on each side the suture beyond the middle, and 
9 or 10 slightly punctured striae. 
Not uncommon on umbelliferous flowers in June in Norfolk, 
Oxford, and Devon, and Mr. Dale has found it at Stafford in 
Dorset, 2nd September : it is less ovate and convex than No. 1, 
the thorax is more quadrate, the antennae and base of tarsi 
are stout, and the latter are dark except at the apex. 
3. A. similis Curt. Brit. Ent. pi. 54-6. 
Female? Length If line: similar in form to No. 2; och- 
reous, head and thorax a little ferruginous and rather 
strongly and thickly punctured, the latter transverse: an- 
tennae moderately stout and castaneous, the club lighter: 
elytra silky, minutely punctured with the striae very ob- 
scure : tarsi all 5-jointed, base of the tibiae slightly cas- 
taneous. 
Male ? Length If line : ferruginous, antennae rather stout 
and inclining to pieeous, excepting the base and apex : 
tibiae pieeous, chestnut at the base, posterior tarsi 4-jointed. 
This, which may be the male of A. similis , appears to be the 
C. pallens of Gyllenhal. The small size and strongly punctured 
head and thorax sufficiently distinguish these insects from the 
foregoing species, and the female has the legs of one colour. 
They were taken the middle of July in Umbelliferae near 
Dover. 
4. A. glaber Gyll. vol. 1 . p, 178. n. 15. 
From 1 to If line long. “ Oblong-ovate, reddish-testaceous, 
smooth, somewhat depressed; thorax transverse, emarginate 
before. A little broader than Cryptophagus cellaris , but not 
longer: all the tarsi 5-jointed.” Gyll . 
I have never seen a British specimen of this insect which has 
been found in the nests of Bombus muscorum in Sweden. 
The Plant is Sinapis alba ( White Mustard), communicated 
by J. J. Bennett, Esq. 
