Callidium.) LONGICORNIA. 223 
I. Sides of thorax rounded or almost rounded. 
i. Upper surface metallic, purple or violaceous . . . . C. yrouaceuM, L. 
ii. Upper surface not metallic. 
1. Thorax with more or less distinct prominences on disc ; 
third joint of antennz scarcely longer than fourth; 
elytra without white markings; size moderately large . C. VARIABILE, L. 
2. Thorax with dise even; third joint of antenne plainly 
longer than fourth ; elytra with white markings ; size 
SH ee gt Sa st Pam ee Mey cee ote ene ee ae Oe AUNTS eis 
II. Sides of thorax strongly angled; upper surface clothed 
with very thick scarlet pubescence. . . . . . . . . C. sANGUINEUM, L. 
C. violaceum, lL. Rather broad, depressed, purple or violaceous, 
slightly pilose ; head small, depressed in middle; thorax transverse, 
with sides strongly rounded, closely and rugosely punctured; elytra 
coarsely and rugosely punctured, but not so closely as thorax, with 
shoulders strongly marked, obtusely rounded at apex ; legs rather long, 
metallic. L. 8-16 mm. 
In the male the antenne area little shorter than the body, and in the 
female much shorter. 
In decaying fir posts and stumps; local, but sometimes abundant ; Darenth Wood, 
Roehampton, Forest Hill, Shirley, Leith Hill, Croydon, Dulwich, Walton, Mickleham, 
Cowfold, Shiere, Reigate, Shipley, &c.; Lowestoft ; Hastings ; New Forest ; Devon ; 
by hundreds for four or five years in wood of an old summer-house at Cirencester 
(Harker) ; Binley, near Coventry (F. H. Fowler) ; Manchester (Stephens). 
C. variabile, L. (s.g. Phymatodes, Muls.). Elongate, rather 
depressed, shiny, clothed with fine light pubescence; colour very 
variable, being black with the elytra violaceous, and the mouth, antenne, 
anal segment of abdomen, base of femora, and tibie and tarsi rufo- 
ferruginous, or head black, thorax red, elytra violaceous with red 
border and under-side, except breast, red, or with the apex alone of the 
elytra violaceous and the legs piceous, or with the whole upper and 
under sides reddish-testaceous ; variations occur between these, the 
thorax being spotted on disc or more or less infuscate, and other 
differences being more or less marked ; head elosely punctured, thorax 
slightly transverse, contracted behind with three more or less distinct 
tubercles on disc, sparingly punctured ; elytra finely punctured ; legs 
rather long, variable in colour. L. 7-15 mm. 
Male with the antenne longer than the body, and the fifth ventral 
segment subtruncate at apex. 
Female with the antenn shorter than the body, and the fifth ventral 
segment rounded and produced at apex. 
In decaying trees; occasionally taken at sugar on trees; rare; London district, 
Ripley, Forest Hill, Lee, Chatham, Blackheath, Sheerness, Tonbridge ; Sydenham 
in plenty in June, 1854 (Power); Hammersmith (occa-ionally taken formerly on old 
fruit trees in an orchard) (S. Stevens); Epping; Windsor; Hertford; Weston, 
Oxfordshire (Matthews) ; Dover; New Forest ; Robins Wood, Repton, near Burton- 
on-Trent ; Scotland, recorded by Dr. Sharp from the Forth district, but as not 
indigenous, and as having been introduced with timber. 
