378 Mr. H. W. Bates on 
lulum rotundatis, sulco basali supra profundo, apicali vix 
impresso, linea dorsali modice impressa, disco utrinque 
vix convexo ; elytris inzequalibus, passim discrete punc- 
tulatis, utrinque maculis duabus rotundatis lateralibus 
albis, una mox pone medium, altera intra angulum ex- 
ternum apicis, ambabus a marginem paulo distantibus ; 
corpore subtus lete viridi-zeneo, pectore pedibusque ni- 
gris; coxis et femoribus sparsim albopilosis. 
ong 305 line 2% 
Hab.—New Granada. 
Apparently allied to O. prodiga, Krichs., which differs 
in having three white spots on each elytron, and in the 
sides being cupreous. In O. cyanopis, there is no trace 
of cupreous, the elytra being of a fine dark blue, with a 
ereenish tinge in certain lhghts, and a trace of violet on 
the sides about the middle; the sides and flanks of the 
thorax, ike nearly the whole of the under-surface, are 
brilliant brassy-green. The description by Hrichson is so 
brief and incomplete, that there is no means of knowing 
whether his insect really belongs to the genus, and the 
species would have to be set aside as indeterminable, if 
we had not an indirect redescription by Chaudoir, in his 
comparison of O. Vuillefroyi (Rev. Mag. Zool., Jan. 1869). 
The genus Oxygonia, comprising a small number of 
species of very great rarity in collections, has generally 
been ill-understood by authors. According to most 
authorities, its affinities are with Iresia and Huprosopus ; 
but Chaudoir, correcting his previous views, placed it 
rightly, in his ‘ Catalogue of Cicindelide” (Brussels, 
1865), in the immediate neighbourhood of Odontocheila 
and Thopeutica, an arrangement which was unnecessarily 
perverted afterwards in Harold and Gemminger’s “ Cata- 
logus.” The genus, in fact, is very closely allied to 
Phyllodroma, Odontocheila, and allies; agreemg with 
them in the simple palpi, grooved tarsi, and slender form 
of body, and differing from Jresia and Huprosopus in the 
absence of frontal grooves, separating the middle of the 
forehead from the inner orbits of the eyes. Its pecu- 
harities are the spined apices of the femora, and the 
nearly smooth punctulate surface of the elytra. Although 
the definite structural differences are but slight, the 
genus forms a most natural group, as manifested by 
numerous minor characters, such as the fine striation of 
the thorax, the tooth-like projections at the apex of the 
