j6 The West Amei ican Scientist. 



4. Philonthus puberulus Horn. West Cliff and near Ula. 



5. Philonthus ierreipennis. Male and female specimens ol 

 what are probably this species were found at West Cliff", 1889. 



6. Xantholinus obscurus Er. 



7. Xantholinus emmesus Grav. 



8. Psederus littorarius Grav. This pretty beetle is very com- 

 mon, being gregarious under logs, etc. 



9. Stenus colon Say, An example of stenus is doubtfully re- 

 ferred to this species. 



10. Quedius prostrans. 



11. Tachyporus chrysomelinus L. West Cliff and near Ula. 



12. Heterothops fumigatus Lee. West Cliff. 

 13' Falagria dissecta Erichs. West Cliff. 



14. Oxytelus nitidulus Grav. 



15. Oxytelus pennsylvanicus Erichs. West Cliff. 



16. Platystethus americanus Erichs. West Cliff. 



17. Laccophilus decipiens Lee West Cliff. 



18. Gyrinus n. sp.? West Cliff. A specimen is in the collec- 

 tion of Dr. Hamilton. 



19. Hydrobius subcupreus Say. West Cliff. 



20. Agabus morosus Lee. West Cliff. 



21. Agabus lecontei. 



22. Agabus parallelus Lee. 



23. Agabus intersectus Lee. 



24. Agabus Obliteratus Lee. Near Ula. 



25. Rhantus binotatus. 



26. Philhydrus diffusus. West Cliff. 



27. Haliplus ruficollis DeG. West Cliff. 



28. Bidessus affmis. 



29. Laccobius agilis Randall. 



Future installments of Coleoptera will be given at intervals, un- 

 til the list is completed. T. D. A. Cockerell. 



LAND MAMMALS OF SAN DIEGO COUNTY, 



CALIFORNIA. 



1. Cariacus macrotis californicus. California Mule 

 Deer. Generally, but sparingly distributed, in nearly all brush and 

 timbered localities. Not as common as formerly, but not likely 

 to be exterminated for a long time, as plenty of favorable cover 

 is found in the rough foothills and mountains. The Black-tail 

 Deer, C. columbianus, may occur in limited numbers, but I have 

 identified none I have no record of the occurrence of the Elk, 

 Cervus canadensis, in this county. 



2 Antilocapra Americana. American Antelope. Nearly 

 exterminated. A few yet live along the borders of the Colorado 

 Desert. In August, 1877, I saw a Dan d of a dozen or more 

 young of the year near the site of the present town of Perris. At 

 that time Antelope were not rare in that locality, but I believe 

 none are left there now. 



