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 einarginate, nearly straight. The 

 elytra are strongly convex, evenly ovate, very narrowly margined, 

 with a slight 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 coxae, 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 coxae ; mesosternum short and transverse, but quite distinct ; all 

 these with the rest of the body, except the abdomen and the epi- 

 pleurse, 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 indebtsd to Dr. Sharp. 



13. ^GITHTJS ARMITAGEI, Sp. DOV. 



Oblongo-ovatus, valde convexus, niger, brunneo-picescens , nitidus ; 

 eJytris flavis, sutura tenuiter et tertia parte apicali nigris, gemel- 

 lato-striatis. 



Long. 7-10 millim. 



Hub. Amazons, Ega. 



This is a very distinct species of ^yithus, 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 ; antennae 

 rufous as far as the fifth joint. Scutellum pitchy black. Elytra 

 quite smooth, excepting a sutural and three pairs of discoidal striae, 

 formed of minute points very faintly impressed. The sutural stria 

 vanishes before the middle, and the discoidal striae on entering the 

 black apical third. Epipleura coloured with the upper surface, 

 limb narrowly black. Underside and legs pitchy. 



Two specimens in the collection of E. Armitage, Esq., R.A. 



14. ^GITHUS BARTLETTi, sp. uov. (Plate LXI. figs. 9, 9 a.) 



Fere hemisphcericus, niger, nitidus, sublavis ; 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 



41* 



