SnanP.— On the Colydiidre of New Zealand. 999 
Tairua (Captain Broun). i 
Obs. Though this species at first sight is extremely similar to Bitoma 
insularis, White, yet it is readily distinguished therefrom by the absence of 
the distinct coste of the thorax of that species. 
Bitoma distans, n. sp. 
D. nigro-fusea, opaca, griseo-setosa, elytris rufo-maculatis, pedibus 
fusco-rufis; prothorace fere equali, haud costato, elytris duplo 
angustiore; his fortiter punctatis, haud costatis. Long. corp. 
4 m.m. 
Antennæ blackish-red, with two joints of the club black. Thorax rather 
longer than broad, greatly narrower than the elytra, slightly curved at the 
sides, the front angles acute but only slightly prominent ; the surface very 
opaque and obsoletely sculptured, without distinct elevations or depressions, 
but with grey setæ arranged in an irregular manner, so as to give a good 
deal the appearance of depressions between them. Elytra elongate, less dull 
than the front parts, of a blackish colour, with numerous large but indis- 
tinct reddish marks, punctured with rows of crenate punctures, and with the 
alternate interstices very indistinctly elevated ; the setæ rather long and 
distinct, though not abundant. Underside blackish, very dull. Legs in- 
fuscate red. 
Also sent by Captain Broun from Tairua. 
Bitoma rugosa, n. sp. 
B. fusca, griseo et albido variegata, antennis pedibusque rufescentibus ; 
prothorace subquadrato, basin versus angustato elytris fere duplo 
angustiore, inæquali ; elytris rugosis. Long. corp. 2-2} m.m. 
Antennæ reddish; joints 3-9 slender, tenth abruptly larger, strongly 
transverse ; eleventh large, quite as broad as the tenth. Head rather 
short, rather strongly constricted behind to form the neck, rugose. Thorax 
small, widest at the front angles, gradually narrowed towards the base, the 
front angles acute ; the surface rugose, and occupied by several ill-defined 
large impressions. Elytra uneven, their seulpture coarse but indistinct, 
and their pubescence or setæ variegated, its most conspicuous parts being 
some small, white, slightly elevated tubercles. Legs reddish ; underside 
nearly black. 
Tairua (Captain Broun). 
Obs. The facies of this little species is very different from the other 
species of the genus I know, owing, I think, chiefly to the form of the 
thorax ; but the general points of structure seem to be those of the genus 
to which I have assigned the species. The European Xylolemus fasciculatus 
is, I judge, according to Duval, similar in appearance to this species ; and 
though B. rugosa does not possess the peculiarly slender basal antennal 
