NUMBER Of SPECIES OF INSECTS. 53 



north of Mexico has been stated by Mr. J. A. Lintner (1886) 

 to be as follows: 



Species. 



Hymenoptera 4450 



Lepidoptera: Butterflies (Edwards's List, 1884, 614; 



Scudder's estimate, 1887) 500 



Larger Moths (Grote's Check List, 1882), 



3184 additions since making about. . . 3271 

 Tineidse (Chambers's List, 1878, not in- 

 cluded in Grote's List) 7794550 



Diptera (Osten-Sacken's estimate in 1878) 2500 



Coleoptera (Henshaw's List of 1885, 9238; up to '88, 275) 9513 



Hemiptera: Homoptera (Uhler's estimate) 1200 



Heteroptera (Uhler's Check List, 1886). . . . 14482648 



Orthoptera (Scudder's estimate) 450 



All other orders, not estimated; perhaps 1000 



Total. . 25,111 



QSdipoda xanthoptera, 



