216 Mr. Westwood on the Affinities of Clinidium. 
ciently detailed by Dalman, which I was naturally anxious to investigate, 
and I did not hesitate to sacrifice my single specimen of the insect, in 
order to render its description more complete. I shall, therefore, in the 
first place, endeavour to supply this deficiency, and then to point out the 
chief characters in which this genus and Clinidiwm resemble or differ from 
each other. 
Amongst the characters omitted by Dalman, were those of the trophi, 
the following being the only description given by him of them, ‘ Os 
** durum, et adeo occultatum ut ejus partes in exsiccatis vix enucleande. 
“« Caput subtus planum mento punctato, flavo-pubescente, antic? sinua- 
** to, lobo medio acuto; Os mandibulis brevibus, palpisque retractis, 
“* occultatis ; (palpi flavescentes articulo apicali elliptico nudo’’:—and 
Latreille merely gives the following description of the trophi in the 4th 
Volume of the new edition of the Régne Animal, p. 487, “‘ Les mandi- 
** bules sont, a ce qu’il m’a paru, rétrécies et presque tricuspidées a 
“« leur extremité. Le menton est corné, trés grand, en forme de bou- 
“ clier, terminé supérieurement par trois dents ou pointes. Les palpes 
‘¢ sont fort courts.’ 
Upon a careful examination and dissection of my specimen, I find the 
following noticeable characters. The posterior angles of the head are 
rounded—the eyes are oval, lateral, not very large, placed behind 
the insertion of the antennz, and distinctly reticulated. On a casual 
view of the insect, it is not improbable that the two large raised 
Jateral and posterior smooth parts of the head might easily be mistaken 
for eyes, and [ am rather inclined to think that Mr. Guilding has consi- 
dered the parts similarly situated in Clinidium as the eyes, more especi- 
ally as Mr. Kirby’s observations leave the matter in doubt. The labrum 
is very minute, and semicircular, with the front slightly produced, and 
with a short bristle arising on each side in front (Ibid, fig. 1. B.) The 
mandibles are very minute, being longer than broad, and tridentate at 
the tips (Ibid. C.) The remaining parts of the mouth are very minute and 
membranaceous, and are hidden beneath the large mentum. The mazille 
ate broad at the base, with the apex produced into a narrow long lobe, 
acute at its tip; the maxillary palpi are four-jointed, the first and third 
joints short, the second about twice as long as the preceding, and rather 
thickened in the middle, the last joint twice the length of the second, and 
gradually acute to the tip (Ibid. D.) This last joint is occasionally seen 
