Cenocara. | SERRICORNIA. 197 
marked shoulders, confusedly punctured, with three impunctate striz on 
each side near margin ; legs pitchy-red or ferruginous, with tarsi short. 
L. 2 mm. 
In Lycoperdina boviste, Bovista plumbea, &c.; also occasionally by sweeping ; 
rare; Mickleham; ‘Tonbridge (Horner and Blatch); Deal; Bearsted, Kent, by 
sweeping (Gorham); Norwich, Horning, and Ashwicken (Power); Windsor; 
Spitchwick, Devon (Leach); Barmouth and Blackpool (Chappell, Taylor, and 
Sidebotham). 
An account of this beetle is given by Mr. Sidebotham in the 
Entomologist’s Monthly Magazine, vol. viii. p. 180; he says that 
in September, 1871, he found the larvee of the species in small dry 
specimens of Bovista plumbea and other small fungi on a sandy flat near 
Barmouth ; in less than a week, several perfect specimens of the insect 
made their appearance ; sometimes the larva appears to eat its way out 
of the fungus, and at once changes into the pupa state, from which it 
turns into the perfect insect in about ten days ; but usually it forms a 
cocoon of spores, changing to the pupa state inside the fungus, out of 
which the perfect insect eats its way ; the species appears to be extremely 
local. 
DORCATOMA, Thomson. , 
The species belonging to this genus may be distinguished from their 
allies by their more elongate form and less convex disc; the eyes are 
entire, and the antenne 10-jointed, rarely 9-jointed; they are about 
twenty in number, and are widely distributed, occurring in Europe, 
South Africa, and North and South America; eight are found in 
Europe, of which two are inhabitants of Britain ; they are both found 
very rarely in decayed trees. 
J. Form narrower; punctuation of elytra less close; 
abdomen with all the segments free . . . . . D. curysomE tina, Sturm. 
Il. Form broader; punctuation of elytra closer ; abdo- 
men with the first segments soldered together in the 
IMIGCCr Sree ES GEG Surehet ts) imac pres 4 cm Ls ROAVICORNTS H: 
D. chrysomelina, Sturm (dresdensis, F., nec Herbst.) Oblong- 
oval, clothed with uneven slightly erect ereyish pubescence, shining 
black, with the antenne, palpi, and legs testaceous, the latter being 
sometimes partially infuscate ; head rather large ; antenne with the 
first joint large, the second somewhat elongate, but very much smaller, 
the following five very small, and the last three very much enlarged, 
forming a loose club ; thorax transverse, gradually and rather strongly 
narrowed in front, bisinuate at base ; scutellum small ; elytra with sides 
subparallel to posterior third and thence narrowed ‘to apex, not very 
closely punctured, with two strie and a row of punctures on each at 
sides; under-side very finely and thickly punctured, with larger round. 
flat punctures interspersed; legs moderately long, tarsi short. L. 
2 mm. 
