SYNTELIA. 4359 
and middle coxa, in possessing only five ventral and seven dorsal plates to the hind 
body, and in the dorsal plates being entirely corneous. This latter character is very 
curious; so far as I know, it occurs in no other Coleoptera having the hind body covered 
by the elytra except in the Histeride, and, in conjunction with the peculiar antenne, 
indicates an undoubted affinity between the Synteliide and the Histeride. M. Salle, 
who has seen S. mexicana alive and has given a brief account of it in the Rev. et Mag. 
Zool. 1873, p. 11, seems to have entertained the opinion that it is allied to the 
Histeride, although when he captured it he supposed it might be a Lucanid allied 
to Ceruchus. 
SYNTELIA. 
Syntelia, Westwood, Proc. Ent. Soc. Lond. 1864, p. 11. 
Syntelia was founded by Westwood on a species from E. India and one from our 
region. Since then a second species from Mexico and one from Japan have been 
added. All are very rare in collections, though from the remarks of Mr. Lewis (Ent. 
Monthly Mag. xix. pp. 137, 138) it seems probable that any one acquainted with their 
habits might procure them freely. They are pretty certainly all predaceous. 
I have dissected an example of S. westwoodi and find some points of interest to be 
added to the characters of the genus as given by Westwood. 
The labrum is closely soldered with the head, of which it forms the anterior part, and 
the front is folded downwards and inwards between the mandibles. The mentum is 
very short, strongly transverse, and forms on each side a short angular projection in 
front; the ligula is very elongate and is divided quite to the base, the inner margins 
of each lobe being ciliated quite to the base (Tab. XIV. fig. 14); the supports of the 
labial palpi are quite exposed, are rather widely separated, and each one is soldered to 
the outer face of the corresponding lobe of the ligula. 
The front of the prosternum has a margin which forms a strong angular projection 
in the middle. The median portion of the prosternum is continued backwards between 
the coxee as a lamina which is concealed between them, but behind them expands and 
forms a process for the reception of the apices of the epimera. There are no trochantins 
on the front coxe. The prothorax enjoys free movement, and there is no co-adaptation 
between its hind part and the front of the mesosternum. 
The middle cox are deeply imbedded, their cavities being subcircular, a little 
prolonged, however, externally, and trochantins are absent; they are moderately 
widely separated ; no division can be traced between the mesothoracic epimera and 
episterna. The metasternum is rather long, its episterna very broad, the epimeron only 
slightly exposed behind the point of the episternum. I can determine no mesothoracic 
stigma. ‘The hind body is rather short, but its segments are very mobile. The basal 
