236 NORTH AMERICAN FAUNA. [No. 7. 



and until tlie undescribed species and genera are all worked up deduc- 

 tions from the list as to the bearings of the fauna on geographical dis- 

 tribution, must be more or less imperfect and unsatisfactory. Never- 

 theless, a few suggestions as they occur may not be out of place. 



Taking first the Coleoptera, which represent by far the larger part 

 of the collectings, they have for the most part been carefully compared 

 with the national collection, and I have had the assistance, in the veri- 

 fications, of Mr. M. L. Linell and Mr. E. A. Schwarz, both well acquainted 

 with our North American Coleoptera. Mr. Schwarz has also materially 

 aided in the analysis of the collection. As the chief localities from 

 which the beetles were obtained do not exceed seven, the list has been 

 arranged in tabular series to prevent repetition of localities. This ar- 

 rangement at once shows that the collection comprises some 258 spe- 

 cies, representing 170 genera in 39 families. Of the total number of 

 species arranged according to localities, twenty-eight (a) are of general 

 distribution in North America, i. e., they cross the whole continent, 

 and among these are six cosmopolitan species (a b), while only a single 

 species (Bradycellus cognatus), found in the Argus Mountains, belongs 

 to the circumpolar fauna. About fifty of the species (c) are widely 

 distributed throughout the more arid regions of the West, and about 

 twenty species (d) belong more properly to the fauna of maritime or 

 upper California. The bulk of these species, as will be noted, were col- 

 lected in San Bernardino County. Deducting the three sets of species 

 and a few others, e. g., the genera Homalota, Scopseus, Scymnus, and 

 Cryptophagus, of the distribution of which very little can be definitely 

 said, there remain about 140 species (those unlettered) which are more 

 or less characteristic of the lower Sonoran fauna. 



Some nineteen species are undoubtedly new, but only a small num- 

 ber of these belong to families that have been worked up and that can 

 be satisfactorily described. They have not been sent away to special- 

 ists, as probably no one would care to describe them at once. They 

 will, I hope, be worked up by Mr. Schwarz or Mr. Linell, but not in 

 time for this report. I may mention that the Coleopterous fauna of 

 this general region has been collected and studied by several compe- 

 tent observers. Dr. J. L. LeConte early visited the Colorado Desert 

 and adjacent parts of Arizona; Dr. George H. Horn has also explored 

 the fauna of Owens Yalley; Mr. G. E. Crotch collected in a trip across 

 the Mohave Desert; Dr. Edward Palmer collected in southern Utah, 

 while Mr. W. G-. Wright has recently made collections in San Ber- 

 nardino County, and Mr. H. E. Wickham along the line of the Atlan- 

 tic and Pacific Railroad in northwestern Arizona. Thus Mr. Koebele's 

 small collection adds very little to our knowledge of the species already 

 worked up. 



Among the more interesting species Mr. Schwarz has indicated, may 

 be mentioned Pseudopsis n. sp., Mecomycter n. sp., Elasmocerus n. sp., Grc- 

 mastochilus westivoodii, Alaudes singularis, Tanarthrus n. sp., Colo- 



