STAPH YJ.INIDA3. 
99 
They present admirable characters for specific dia- 
gnosis in the very pronounced teeth and notchings of 
the upper and under sides of the sub-apical segment 
of the abdomen, which is different in the two sexes. 
In order to obtain a clear outline of this structure, it 
is as well to remove the extreme apical segment of 
specimens showing the upper and under surface of 
each sex. 
The species of Tachyporus, small, shining, flattish, 
and more or less yellow marked with black, exhibit 
somewhat similar sexual characters. They are diffi- 
cult to determine, owing to their want of punctuation, 
and are generally abundant in moss and wet places. 
The Bolitobii, gaily coloured (Plate IV., Fig. 2, Bolito- 
bius atricapillus ) and very active species, occur in 
profusion in fungi in the autumn. Buglish descrip- 
tions of all our species will be found in the first 
volume of the “ Entomologist’s Monthly Magazine,” 
by the present writer. Lastly, the members of the 
genus Mycetoporus, smaller and narrower than the 
Bolitobii, are found sometimes in moss, but more 
usually in sand-pits, &c., during the early spring. 
The position and number of certain deep punctures 
on the elytra and sides and front of the thorax 
will assist in determining the species of this genus. 
The Trichophyinas and Habrocerinas (containing 
respectively the genera Trichophya and Ilabrocerus) 
are conspicuous from their hair-like antennas, which 
are adorned with slender rings of hairs, resembling 
microscopic Equisetum : Trichophya pilicornis is found 
plentifully in the corridors of the Crystal Palace at 
Sydenham, whither it flies from its haunts among 
the fir-trees at Shirley, &c. 
h 2 
