70 SERRICORNIA. [Agrilus. 
shining, punctured, with three white spots on each side of abdomen; 
legs more or less metallic. L. 8-12 mm. 
Male with the anterior tibia terminating in a small hook on their 
inner side. 
Found flying about old oak stumps, and settling on them; the larva is f.und in 
the bark of oak stumps in fresh clearings in woods; very local; Darenth Wood 
(where it has been taken in numbers by Dr. Power, and also by Mr. Champion) ; 
Hampstead and Cuckfield (Stephens). 
A. sinuatus, Ol. (chryseis, Curt.). Of a coppery-red or purplish 
colour, dull, under-side bronze-green; very closely allied to the pre- 
ceding, but with the elytra more closely sculptured and more evidently 
granulate, and almost always without a white spot before apex; the 
abdomen, moreover, is without the white spots at the sides, and the 
front margin of the prosternum is deeply and triangularly emarginate; 
the last segment of the abdomen is entire; the average size is smaller 
than in A. liguttatus. L. 7-8 mm. 
On low thorn bushes ; very rare; near Brockenhurst, July and August (Turner, 
Matthews, and others) ; near Windsor and London (Stepheus). 
A laticornis, II]. (daticollis, Kies.), Elongate, narrow, gradually 
contracted behind, somewhat depressed on disc, of an olivaceous green 
colour; head rather strongly and rugosely punctured, forehead flat, 
vertex of head obsoletely furrowed, antennz as long as head and thorax, 
very strongly widened in the middle in the male; female with the 
antenne thinner than in the male, but still somewhat dilated; thorax 
transverse, somewhat widened in front, coarsely and rugosely punctured, 
more or less strongly impressed at base; scutellum with engraved trans- 
verse line; elytra long and narrow, granulate, narrowed at apex; legs 
dark metallic. L. 4-5 mm. 
Besides the difference in the antenna, the male has the last segment 
of the abdomen longitudinally impressed in middle, and the anterior 
tibia sinuate towards apex and terminating in a small hook. 
By beating young hazels, oak, birch, &c.; local, but not uncommon where it 
occurs; Darenth Wood, Leith Hill, Coombe Wood, Shirley, Ashtead, Baleombe, 
Tonbridge, &c. ; Portsmouth district ; New Forest ; Bewdley Forest ; Buddon Wocd, 
Leicestershire ; Hopwas Wood, Tamworth ; Robins Wood, RKepton; York. 
A. angustulus, III. (olivaceus, Gyll.). Very closely allied to the 
preceding, but distinguished by the antenne not being dilated in male, 
and by the fact that the second abdominal segment in the same sex has 
two small prominences in the middle of apex; these, however, are 
occasionally obsolete, and cannot always be regarded as a reliable 
character; in the female the sutural angle is simple, whereas in A. 
laticornis it is slightly produced; in general shape and structure the 
species so closely resembles the preceding that it does not require a 
separate description. L. 3)-5 mm, 
