1889. ] NEW SPECIES OF EROTYLID. 619 
bisinuate, the sides narrowed to the front, neatly and distinctly 
thickened and a little rounded-in to the front angles, which are 
acute ; the front margin scarcely emarginate, nearly straight. The 
elytra are strongly convex, evenly ovate, very narrowly margined, 
with aslight fossa near the middle of their margin, in which are 
two or three obsolete traces of punctures, indicating the marginal stria. 
Underside smooth, the legs, including the cox, chestnut-red ; the 
prosternum very wide, in front forming a small, not prominent point, 
from which to the base it forms an equilateral triangle between 
the cox ; mesosternum short and transverse, but quite distinct; all 
these with the rest of the body, except the abdomen and the epi- 
pleure, are nearly black in the New-Guinea specimen, but in the 
one from Mysol they are only a little darker than the legs and 
abdomen ; this is, however, obviously due to the less matured condi- 
tion of this specimen. This is an aberrant species, if it is really an 
Aulacochilus ; it is, however, best so placed till the acquisition of more 
specimens enables dissections to be made. For the specimen from 
New Guinea I am indebted to Dr. Sharp. 
13, ANGITHUS ARMITAGEI, Sp. nov. 
Oblongo-ovatus, valde converus, niger, brunneo-picescens, nitidus ; 
elytris flavis, sutura tenuiter et tertia parte apicali nigris, gemel- 
lato-striatis. 
Long. 7-10 millim. 
Hab. Amazons, Ega. 
This is a very distinct species of Hgithus, its nearest ally perhaps 
being A. dichrous, Crotch ; it is, however, less hemispherical and 
less convex than that species; it is also somewhat allied to A. discoideus, 
Gorham, a species found in Costa Rica. 
Head and thorax pitchy black with black margins; antennse 
rufous as far as the fifth joint. Scutellum pitchy black. Elytra 
quite smooth, excepting a sutural and three pairs of discoidal strie, 
formed of minute points very faintly impressed. The sutural stria 
vanishes before the middle, and the discoidal strize on entering the 
black apical third. Epipleura coloured with the upper surface, 
limb narrowly black. Underside and légs pitchy. 
Two specimens in the collection of E. Armitage, Esq., R.A. 
14. AigITHUS BARTLETTI, sp. nov. (Plate LXI. figs. 9, 9a.) 
Fere hemisphericus, niger, nitidus, sublevis ; elytris punctis dispersis, 
et in seriebus subgeminatis sat distinctis impressis, maculis tribus 
magnis luteis, duabus basalibus, una transversa subapicali. 
Long. 10 millim. 
Hab, East Peru (Bartlett). 
Very convex, but rather more oblong than hemispherical, shining 
black and smooth, excepting the elytra, which have each three double 
series of small but distinct punctures, which are, however, irregular 
and becoming confused here and there with other dispersed punc- 
tures of the same size. The basal luteous spots are of an irregular 
oblong shape, the external one is continued on the epipleura. The 
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