and Species of Eumolpide. 387 
This insect, by its cylindrical form and the smaller size of its 
- spots, approaches M. humeralis and M. tetrasticta; and the 
three, with M. testacea, Fab., and others, form a group of allied 
species. 
Brought from the Amazons by H. W. Bates, Esq. 
Metaxyonycha quadrinotata, sp. ined. 
M. testacea, antennarum articulis 4—12, nigris ; thorace elytris angus- 
tiore, lateribus medio bisinuatis ; elytris confertim, prope suturam 
seriatim punctatis, apicem versus costatis, costis leevibus ; in singulo 
elytro maculz duze magnze fusco-czeruleze ; antennze crassiusculee ; 
tarsi subinfuscati. . 
Long. lin. 43-5, lat. hum. 13-2 lin. 
Closely allied to M. crucifera (of which it may be a permanent 
local variety), but separated (1) by the thick antennz, (2) by the 
punctuation of the elytra, (3) by the brownish-blue tint of the 
dorsal blotches. Head and thorax smooth, shining, with scat- 
tered punctures. A single punctured stria next the suture, 
followed, after a wide smooth interval, by a line of doubled 
punctures ; the rest of the elytra hardly striato-punctate, except 
at the apex, where the usual eight smooth costz become visible, 
their interstices punctured. Otherwise hike M. crucifera. 
Hab. Brazil. From Thomson’s collection. 
Metaxyonycha humeralis, sp. med. 
M. oblongo-ovata, subcylindrica, nitida, scite punctulata, testacea, 
oculis nigris; elytris punctato-striatis, cujusque striz punctis ge- 
minatis, interstitiis levibus, postice elevatis. Elytron utrumque 
maculis binis, parvis, rotundis, nigro-ceruleis, quarum altera major 
in ipso callo humerali sita, altera infra medium minima. 
Long. lin. 4, lat. hum. 14 hn. 
Front with three small fovez, arranged in an are above the 
antenne and between the eyes. Thorax finely margined at the 
sides and base, with a scarcely visible sinus in the middle of 
each side; like the head, irregularly punctured and shining. 
Scutellum impunctate, shining, and, with the head and thorax, 
pale reddish testaceous. lytra paler, broader at the base than 
the thorax, parallel for three-fourths of their length, thence 
to the apex conjointly attenuated and rounded, and in an equal 
degree defilexed from above: punctate-striate, the punctures 
geminated, the interstices shining, elevated posteriorly into four 
smooth costz next the suture, and, after a wider interval, three 
more, of which the first is continued from the base to the apex, 
and connects the two cyaneous spots on their outer edges. On 
the humeral callus is a round cyaneous spot, angulated poste- 
riorly, and behind the middle a much smaller discal dot. 
Brought from the Amazons by H. W. Bates, Esq. 
