— 285 — 



manifestissimo carinae accessoriae (quae v. gr. in 0. fer- 

 ruginea L. prorsus evoluta est), séries pimctorum per paria dis- 

 cernentis, instructis; quibus carinarum rudimentis longius ante 

 apicem sensim evanescentibus; intervallo 3° (inter carinam dor- 

 salem 2*™ et 3^™ s. humeralem) jam minus nitido sat confuse 

 subtriseriatim punctato, earinae accessoriae rudimento 

 nullo vel solum pone medium vix iudicato diviso, basi minus 

 discrète punctato, punctorum interspatiis rugas transversales ma- 

 nifestas ibi efficientibus ; intervallo 4** s. externo latissimo, 

 opaco, 6 séries punctorum sat reguläres, basi plus minusve 

 obliquatas et confusas continente carinisque accessoriis carente; 

 limbo late explanato, ad humeros valde dilatato, toto opaco, 

 parce sparsimque punctato, margine laterali alte reflexo, acuto, 

 ad humeros unâcum margine basali subtiliter subserratim crenu- 

 lato; epipleuris valde latis, nitidis, copiose irregulariter subcon- 

 fuse punctatis, ad humeros intus profunde longitudinaliter im- 

 pressis. Prosterno medio nitido, parce disperseque punctulato, 

 processu intercoxali similiter atque in 0. ferrugineo L. constructo, 

 i. e. neque polito neque valde convexo, ad apicem ultra coxas 

 fortiter dilatato. Metasterno abdominisque segmentis totis sat 

 copiose punctatis, his postice tenuiter calloso-marginatis (9?). 

 Tibiis anticis extus manifeste longitudinaliter sulcatis. 



Long. 6,6, lat. 4,1 mm. 



Bossia media: Jaroslawl; in sepe vetere ligneâ semel captum 

 (A. Jakowlew! 15. V. 1881). — Solum spécimen ($?) (coll. 

 A. Jakowlew). 



Species a subgenere Zimioma Gozis ad subgenus Ostoma s. 

 Str. {= Gaurambe С G. Thoms.) transitoria, sed ob tibias an- 

 ticas extus manifeste sulcatas, coleoptera carinis accessoriis in 

 duobus tantum intervallis indicatis sed non evolutis, corporis 

 forma latiuscula etc. sine ullo dubio subgeneri Zimioma ascri- 

 benda; cujus ab ambabus speciebus (0. grosso L. et giganteo 

 Rttr.) magnitudine multo minore, totius corporis colore pallido, 

 pronoti minus brevis atque coleopteris angustioris lateribus opa- 



