THE CANADIAN ENTOMOLOGIST. 105 



REMARKS ON GNYPETA THOMS. {STAPHYLINID^ COL.). 



BY A. FENYES, PASADENA, CAL. 



This rather feebly-characterized Aleocharine genus has the following 

 diagnosis : 



Tarsi 4-5-5-jointed ; antennae ii-jointed; maxillary palpi 4-jointed ; 

 labial palpi 3-jointed ; ligula bifid ; genae simple. Hind tarsi with joint 

 I not longer than 2 and 3 together. Prosternum membranous under the 

 front coxae ; mesosternal process obtuse at tip ; middle coxte separated. 

 The first free ventral segment of the abdomen transversely sulcate at base. 



Gnypeta differs from Atheta Thoms. by the sulcate ventrites, from 

 Tachytisa Er. by the obtuse mesosternal process, and from Myrmecopora 

 Saulcy by the comparatively short first joint of the hind tarsi. 



In the males the sixth ventrite is produced, and at tip rounded ; in 

 the females less produced than in the males, and at tip sinuate. 



The following descriptions of nearctic forms have been published : 



1. nigrella Lee, n. sp., N. Amer. Col, I, 1863, 29 (Tachyusa). 



2. haltifera Lee, ibid., 29 (Tachyusa). 



3. laticollis Csy., Bull. Cal. Ac. Sc, I, 1885, 287 (Falagria). 



4. experta Csy., ibid., 300 (Tachyusa). 



5. linearis Csy., ibid., 301 (Tachyusa). 



6. harfordi Csy., ibid., 304 (Tachyusa). 



7. crebrepujictata Csy., Bull. Cal. Ac. Sc, II, 1886, 203 (Tachyusa). 



8. atroliicens Csy., Ann. N. Y. Ac. Sc, VII, 1893, 346. 



9. lucens Brnhr., Deutsch. Ent. Ztschr., 1905, 254. 



10. he/enœ Csy., Tr. Ac. Sc. St. Louis, XVI, 1906, 193. 



11. desert icoia Csy., ibid., 193. 



12. pundulata Csy., ibid., 194. 



13. ventral is Csy., ibid., 194. 



14. florida7ia Csy., ibid., 195. 



15. bockiana Csy., ibid., 195. 



16. manitobce Csy., ibid., 196. 



17. brevicornis Csy., ibid., 196. 



18. incrassata Csy., ibid., 198, 



19. leviventris Q^y.^Wyvdi., 198. 



20. oregona Csy., ibid, 199. 



21. impressiceps Csy., ibid., 199. 



22. airtipentiis Csy., ibid., 201. 



23. abducens Csy., ibid., 201. 



24. shastana Csy., ibid,, 202. 



April, 1912 



