70 Mr. H. W. Bates on Coleoptera 



obliqiiis, apice ( ^ ) perparum oblique sinuata ; supra foveis (lineolis sepa- 

 ratis) utrinque triplici serie, intervallis tri-striatis et tri-carinulatis, striis 

 transversim punctatis, carinulis postice granulatis, intervallo marginali 

 carinulis duabus antice et postice valde abbreviatis, margine et apice (late) 

 confuse granulatis. Palpi articulo apicali sat late dilatato ; labiales articulo 

 penultimo 3 vel 4-setoso. Tarsi antici 3' articulis 4 dilatatis et subtus dense 

 erecte pubescentibus. Long. 28 millim., ^ . 



Ta-tsien-lu. One male example. 



Cychrus yunnanus, Fairmaire, Ann. Soc. Ent. Belg. xxxi. p. 4. 

 Snowy Eange, Ta-tsien-lu ; alt. 13,000 ft. A few examples 

 agreeing with M. Fairmaire's description made from Yunnan 

 specimens. 



Penetretus quadraticollis, n. sp. 



Anguste oblongus mediocriter depressus, niger nitidus; thorace elytris 

 baud angustiori quadratus, lateribus ante medium perparum rotundatis, 

 prope basin profunde sinuatis angulis posticis acutis. Long. 10 millim., ^ J . 



Differs from all other known species of the PatrohincB group by the 

 relatively large quadrate thorax, which gives it the facies of a Pterostichus. 

 The colour is deep shining black, the palpi rufescent piceous. The eyes are 

 rather less prominent than in P. rufipennis, nehrio'ides, and anibiguus, and 

 the head less narrowed behind to the neck ; the frontal furrows are long, 

 deep, and rugose, and the transverse occipital furrow (far behind the eyes) is 

 punctured. The lateral margin of the thorax is thickened and raised, and 

 the furrow on its inner side thereby created is punctured fi'om base to apex ; 

 the broad and deep basal fovea on each side and the entire base are also 

 strongly punctured ; the fovea is moreover bistriate, and an obhque carina 

 limits the exterior stria on its outer side. The elytra are relatively rather 

 short; the humeri rectangular, the apex of the angle being thickened and 

 elevated ; the sides have a scarcely perceptible curve towards the base ; the 

 strife are sharply impressed and punctulated, the interstices nearly plane, 

 the third near the 3rd stria tripunctate. Beneath, the sides of the sterna 

 and basal ventral segment are strongly punctured. 



As in other species of Pcnetrctm, the posterior supra-orbital 

 setiferous pore is situated behind the eye and towards the vertex, 

 the anterior being close to the middle of the eye. 



Pterostichus latecostata, Fairmaire, Ann. Soc. Ent. Belg. 

 xxxi. p. 94 {Platysma, id.). 

 Snowy Eange, Ta-tsien-lu ; alt. 13,000 ft. 

 Described by M. Fairmaire from an example sent by 

 MM. Delavay and Chaste from Yunnan. The species seems to 

 me to belong to the restricted genus Pterostichus of continental 

 authors rather than to the genus, or subgenus, Platysma, in 

 which M. Fairmaire placed it, the metathoracic episterna being 

 short, as in P. multipunctata, Dej., and allies. 



Platysma jENEocuprea, Fairm., Ann. Soc. Ent. Belg., xxxi. p. 95. 

 Snowy Eange, Ta-tsien-lu ; alt. 13,000 ft. 



Platysma yunnana, Fairm., l. c, p. 94. 

 Snowy Eange, Ta-tsien-lu ; alt. 13,000 ft. 

 In both the foregoing the metasternal episterna are elongate, 



