Entomological Society. 149 



tions to which they are subject, and which he had found to afford a 

 very satisfactory character for determining the limits of several of 

 the genera, not only in these insects, but also among the Homo- 

 ptera, in which order they had not hitherto been employed. 



The commencement of a paper by J. O.Westwood, F.L.S., entitled 

 "* Observations on the Linnaean species of StaphylinidcB" was read. 



In this memoir the author reviews the opinions which have been 

 expressed by the various writers upon this family of beetles relative 

 to the different species of rove-beetles described by Linna?us, and 

 also, guided by the Linnsean Collection itself in the possession of the 

 Linnsean Society, determines the modern genera to which the species 

 respectively belong, and corrects their synonyms. The following 

 is an abstract of the latter part of these observations : — 



Sp. 1. Staphylinus hirtus is the Emus Mrtiis, Leach. 



Sp. 2. St. muriwus is Staphylinus {Trichoderma, Steph.) nebulosus, 

 Fabr., Steph., &c. 



Sp. 3. St. maxillosus. Under this name Linnaeus united Creo^ 

 philus mcurillosus, K. and Goerius olens. Leach. 



Sp. 4. St. erythropterus is the St. erythropterus, Fabr. (ccesareus, 

 Cederh, and Erichs.), not the St. castanopterus, Grav. 



Sp. 5. St. politus. Several species confounded together, but the 

 typical specimen is the Staph, ceneus, Grav., Gyll. 



Sp. 6. St. rufus is Oxyporus rufus, Fabr. 



Sp. 7. St. lunulatus is Bolitobius lunulatus of Panzer and Zetter- 

 stedt (B. atricapillus, Fabr., &c.). 



Sp. 8. St. riparius is P^ederu^ riparius. Fab. 



Sp. 9. St. ohtusus is a Tachyporus specifically identical with T, 

 analis. Fab., which is a variety of it. 



Sp. 10. St. lignorum is a Tachinus of the size of T. subterraneus. 



Sp. 11. St. Silphoides is identical with Tachinus suturalis, Grav. 



Sp. 12. St. subterraneus is Tachinus subterranneus, Grav. 



Sp. 13. St. flavescens. No specimen of this doubtful species 

 exists in the Linnaean cabinet. 



Sp. 14. St. elongatus is identical with Lathrobium elongatum, 

 Erichs. 



Sp. 15. St. biguttatus is a small Stenus. 



Sp. 16. St. bipustulatus. No specimen of this evident species of 

 Stenus exists in the Linnsean cabinet. 



Sp. 17. St, cantharellus. Ditto. Probably a ikfa/Mmw^. 



Sp. 18. St. littoreus is identical with Oxyporus {Conurus, Steph.) 

 cellaris, Fab. 



Sp. 19. St. sanguineus is an Aleochara closely allied to A.fuscipes, 



Sp. 20. St. caraboides is Lesteva caraboides^ Grav. (testaceus, Bdv. 

 and Lacord.) 



Sp. 21. St. chrysomelinus is Tachyporus chrysomelinus, Auct. 



Sp. 22. St. flavipes is Tachyporus hypnorum. Fab. 



Sp. 23. St.fuscipes is identical with Gyrohypnus lentus, Grav. 



Sp. 24. St. rufipes is identical with Tachinus puUus, Grav. 



Sp. 25. St. piceus is Oxytelus piceus, Gyll. ■ 



Sp. 26. St. boleti is Gyrophcena minima, Erichs. 



