886 Rey. T. A. Marshall on new Genera 
faintly punctured ; the less glossy appearance is due to a very 
minute aciculation, visible under a strong lens everywhere be- 
tween the punctures, and especially on the thorax. LElytra each 
with eight smooth, subelevated, somewhat indistinct coste (ex- 
clusive of the sutural and lateral margins) ; the first and eighth, 
the second and seventh, and the third and sixth united at their 
apices. Interstices moderately punctured, the punctures of the 
second and following strie geminated. Each elytron with two 
cyaneous spots, irregularly rounded,—the anterior covering the 
humeral angle, and projected for a short space into the deflexed 
lateral margin, reaching along the anterior margin nearly to the 
scutellum, and terminating posteriorly at one-fourth of the 
length of the elytron: its hinder interior angle truncated. The 
posterior spot is situated just behind the middle, equal in size 
to the anterior, slightly infrmging upon the deflexed lateral 
margin, not touching the suture, and terminating posteriorly at 
five-sixths of the length of the elytron. Tarsi testaceous. The 
other characters are common to this and the two preceding 
species. 
Hab, South America? From Thomson’s collection. 
Metaxyonycha humilis, sp. ined. 
M. testacea, parallela, cylindrica; antennis testaceis; capite basi et 
post oculos infuscato ; elytris thorace parum latioribus, hoc late- 
ribus muticis, illis subseriatim punctatis, apicem versus costatis ; 
utroque maculis binis baseos et fascia pone medium, postice emar- 
ginata, extus apicem versus producta, nigris. 
Long. lin. 33, lat. hum. 1} lin. 
Head smooth, shining, with a large punctured fovea between 
the eyes, and three impressed lines, forming a bisected triangle, 
of which the apex enters the fovea. Eyes large, black, and pro- — 
minent. Mandibles tipped with black, Occiput dark brown, 
black behind the eyes; the dark tint extending forwards in the 
‘middle indeterminately. Thorax convex, subcylindrical, mode- — 
rately rounded at the edentate sides, nearly as broad as the elytra, 
punctured, and, with the scutellum, reddish testaccous. Elytra 
paler testaceous, thickly but finely punctured, the punctures 
indistinctly arranged in striz; the suture costate, and several — 
smooth costze visible near the apex. ach elytron with two ob- 
long black basal spots, the outer one lunate, and including the ~ 
humeral callus. An irregular black transverse fascia just be- — 
hind the middle, touching the sutural margin, but not reaching ~ 
the deflexed outer margin of the elytron; emarginate behind, — 
and with its outer angle narrowly produced for a short dis- 
tance towards the apex. Under surface and legs entirely testa- 
ceous. 
ee eee eee ee 
