70 Dr. Schaum on the Cicindelidxe 
Chaudoir (Bull. Mose. 1860, iv.) on some Ceylonese species, as being 
well founded. He distinguishes it from Tricondyla principally 
“‘capite basi strangulato, fronte parum excavata, menti lobis acu- 
tissimis.” The head is, however, equally attenuated behind and 
constricted at the base in 7’. cyanipes and allied species; the flat 
front is also found in 7. planiceps ; the lobes of the mentum are also 
very acute in 7’. planiceps, which does not belong to Derocrania. 
The genus Tricondyla, constituted as it is, is so eminently natu- 
ral, that it only admits of further division into sections, not into 
genera. The known species of it have been simultaneously enu- 
merated both by Chaudoir (Bull. Mosc. 1860) and by me (Berl. 
Zeitschr. 1861); the list given of them requires, however, some 
emendation, as I have convinced myself by the examination of a vast 
number of specimens in the British Collections, especially in those of 
W. W. Saunders and A. Wallace. The actually known species may 
be thus arranged. 
I. Caput postice non strangulatum. 
A. Prothorax inter sulcum transversum basalem et apicalem plus 
minusve inflatus, levigatus. 
1. 7. aptera, Oliv., De}. ; connata, Lamarck*. 
Var. T. Chevrolatii, Lap., Brullé. 
Var. 7. pedestris, Klug=varicornis, Chaud. (Ann. Soc. Ent. 
d. France, 1861). 
Var. 7. violacea, Chaud. (Bull. d. Mose. 1860). 
T. Chevrolatii, Lap., Brullé, which is in all probability erroneously 
stated by Laporte to have come from Jaya, is a variety of aptera with 
red femora, found in the various islands of the Eastern Archipelago 
approaching New Guinea. Neither the sculpture nor the form offers 
any real difference from aptera, and a great number of specimens in 
the collection of Mr. Saunders show all passages in the colour of the 
femora. 1’. pedestris, Klug, and varicornis, Chaud., are established 
on specimens in which not only the femora, but also the apex of the 
labrum and the first joint of the antenne are reddish. 7’. vrolacea, 
Chaud., is a more marked variety, with somewhat shorter elytra and a 
more violaceous colour; but even these differences shade off gradually. 
It is probable, but not yet quite ascertained, that the black variety 
of 7’. cyanea described by Van der Linden, on which Brullé founded 
his 7. atrata, is = Chevrolatii, Lap. T. Wallace:, Thoms., from 
Borneo, formerly, in consequence of its unsatisfactory description, 
referred to 7’. Chevrolatii, is, as I am informed by Baron Chaudoir, 
* The full quotations are given by me in Berl. Zeitschr. 1861 and 1862. 
