288 DYXASTI>'iE. 



triangular, pointed and slightly reflexed at the apex. Mandible 

 acutely produced in front and sinuous at the outer edge. Maxilla 

 armed with three teeth. Labium long, scarcely tapering, broadly 

 bilobed in front, with the palpi inserted on the inside. Pro- 

 sternal process long and erect, resting against the front coxse. 

 Propygidium without stridulatory ridges. Pygidium protuberant. 

 Legs moderately long ; front tibia armed \\ith three very acute 

 teeth, without secondary denticles ; hind tibia truncate and 

 fringed with short stiff spines. Tarsi slender, with the basal 

 joint of the middle and hind pair triangular. 



cJ . Head armed \A'ith a short horn and smooth and shining 

 behind it. Pront tarsi thickened and the inner claw flattened and 

 cleft. Pronotum more or less impressed in the middle. t!!^ 



2 . Head rugose or closely punctured with a small median 

 tubercle. Pronotum generally unimpressed. 



Kei/ to the S2)ecies. 



1 (10) Sides of the metastermim more or 



less shininfr. 



2 (3) Pimctures of the upper surface not 



very coarse planaius, Wied., p. 288. 



3 (2) Punctures of the upper surface 



very coarse. 



4 (7) Scutellum not strongly punctured. 



.5 (O) Scutellum with a few punctures . . plati/pterus, "Wied., p. 289. 



6 (5) Scutellum unpunctured perforatus, Arrow, p. 289. 



7 (4) Scutellum strongly punctured. 



8 (9) Elytra bearing large annular punc- 



tures in rows dngaleixsis, Arrow, p. 290. 



9 (8) Elytra bearing large annular punc- 



tures not in rows decatenatus, sp. n., p. 291. 



10 (1) Sides of the metasternum entirely 



rugose. 

 11(12) Metasternum very thinly hairy .. mloirensis. Xrxov!,-^. 2^\. 

 12 (11) Metasternum thickly hairy chinensis, raid., p. 292. 



257. Eophileurus planatus. 



Geotrupes planatus, Wied.,* Zool. Mag., ii, 1, 1823, p. 5. 



Black, moderately shining and closely punctured. The pro- 

 thorax is strongly curved at the sides, not very broad at the base, 

 and the hind angles are very obtuse ; it is closely, not coarsely, 

 punctured all over, the punctures being confluent in front and fine 

 and less close in the middle behind. The scutellum bears a few 

 isolated punctures, and the ehitra are closely covered with annular 

 but not coarse punctures, confluent at the sides and apices, and 

 arranged in irregular rows on the disc, with the interstices 

 minutely punctulated. The metastemuin is finely punctured in 

 the middle and strongly punctured and pubescent at the sides, and 

 the abdomen has scattered punctures. 



