1869.] 289 
Odontocheila Oseeti, Lucas, Voyage de CaBtelnau, Entom., p. 37 
(nee fig. 7, pi. 1, a). 
This is a fine and distinct species of the cayennensis group, dis- 
covered by the Castelnau expedition in 1846, and recently obtained in 
considerable numbers at Pebas, Upper Amazons, by Mr. J. Hauxwell. 
The figiu-e given by Lucas is totally opposed to his description with 
regard to colours, and seems to have been taken from O. ruhefacta, mihi ; 
O. Oseryi has the legs of a rich dark blue, with the sole exception of 
the hindmost tibiae, which are saffron-yellow. 
Odoftocheila tegchanteeica, n. sp. O. margineguttatcs (Dej.) 
forma et colore similis, differt autem trochanterihus anoque testaeeo-alhis. 
Cylind/vica, thoracis laterihus rectis : supra fusco-cwprea, tlioracis elytro- 
rumque laterihus cyaneis, Jiorum marginibus alho-tri-guttatis ; suhtus 
saturate ccerulea, trochanterihus anoque alho-testaceis, pedihus violaceis, 
genuhus tihiisque posticis ohscure ricfo-testaceis, labro antice rufo-testaceo. 
Long. 5\ lin. ^ $ . 
This was a common species in dark forest pathways at Para, flying 
and running on the sandy ground, and over bushes. The description is 
taken from 8 examples perfectly agreeing with each other. 
Odostocueila etjgatula, n. sp. O. margineguttatce affinis, sed 
minor. Cylindrica, nigro-cuprea, pedibus cyaneis, trochanterihus femori- 
busque basi ru/o-piceis ; lahro obscure, marginibus late testaceis ; thorace 
angusto, medio apicem. versus paulo rotundato, supra suhtilissime trans- 
versim strigoso, margine postico late cupreo ; elytris marginibus cyaneis, 
albo-tripunctatis, puncto mediano magno, triangulari ; supra vix incequali- 
bus, creberrime punctato-rugosis, rugis suturam verstcs longioribus magisque 
distinctis ; suhtus omnino cyanea. Long. 4| — 5 lin. ^ $ . 
Allied to O. margineguttata, but smaller, the elytra much shorter 
in proportion, the median marginal spot much larger, surface blacker 
in colour and more distinctly rugulose. It resembles also O. eximia 
(Lucas) in size and general colour, but difi"ers in the finer punctuation 
and less uneven surface of the elytra. The colour is a blackish bronze, 
with the sides of the elytra gradually shading into brassy-green, then 
into blue, and finally, on the margin, into violet. As in O. margine- 
guttata, the abdomen is wholly dark blue ; the legs are also of this 
colour, with the exception of the trochanters and extreme base of the 
femora, which are dark pitchy- red or brown. 
Common at Obydos, on the northern side of the Lower^Amazons ; 
all the specimens examined agree in the characters above given. 1 
did not find the species on the Upper Amazons or at Pani. 
