* 
1872.) 239 
four posterior femora are acutely bispinose. The five-dentate labrum 
readily distinguishes it from O. moronensis, the only species approaching 
it in colour. 
O. PRODIGA. 
Cicindela (Phyllodroma) prodiga, Brichson, Consp. Faun. Peru., 
p- 68. 
The following is all the description Erichson thought proper to give 
of this species, found by Tschudi, probably on the Upper Huallaga in 
Peru: 
“ O splendida, viridis, elytris lateribus cuprevs, maculisque tribus late- 
ralibus albis. Long. 7 lin.” 
Baron Chaudoir, in the description of his O. Vuillefroyi, inciden- 
tally states that Erichson’s species is of a fine blue colour changing to 
violet, and that the description applied to the ¢. 
In none of Mr. Buckley’s specimens are the elytra green, or blue- 
violet with coppery margins. 
O, VUILLEFROYI. 
Chaudoir, Rev. and Mag. Zool., Jan., 1869, p. 2. 
Described from a ? example, 15 millimétres long, received from 
“ Quito.” The colour is “d’un vert olivatre plus tendre,” 2. e., more 
delicate than the brilliant blue of Erichson’s species. This colour agrees 
with that of several specimens (?) taken by Mr. Buckley, and which 
T describe further on as O. floridula. Unfortunately, Baron Chaudoir’s 
description is a comparative one, drawn up with regard to O. prodiga ; 
he is comparing it, therefore, with a species which cannot possibly 
be known to those who have not the type before them. He states, 
however, that the elytra of his insect are entirely covered with a very 
fine punctuation, and that the middle lateral spot curves crescent- 
like on the disc towards the base. In these features it differs entirely 
from O. jfloridula. 
O. DENTIPENNIS. 
Germar, Guérin’s Magaz. de Zool., 1843, pl. 124. 
A small species, only four lines long, from South Brazil, differing 
from all the Andean species by the elytra being truncated at the 
apex, with a long exterior spine ( ¢?). 
This species is that most generally figured as illustrating the genus 
Oxygonia : thug giving quite an erroneous idea of the typical forms of 
this group. 
