INDEX TO VOLUME XXI. 



(Notes and articles on geographical distribution are indexed under the names of the 

 States or countries concerned, and not under the species listed then in e* > )>t in thi- case 

 of new or redescribed forms. * indicates new generic or specific n.i 



GENERAL SUBJECTS. 



Abnormal Structures 5 



Academy of Natural Sci- 

 ences of Philadelphia, En- 

 tom. Section of 334, 429 



Adult insects, Length of life 



of 239 



Africa, Entomological re- 

 search in 478 



Agassiz Association I3 1 



American Association of Eco- 

 nomic Entomologists .192, 478 

 American Entomological So- 

 ciety 333, 428 



Arizona, Collecting in 97 



Asolla vs. Mosquitoes 437 



Behr Natural History Sum- 

 mer Laboratory 280 



Birds, Mallophaga from 51, 124, 



459- 



Boston Society of Natural 

 History Museum Expedi- 

 tion of 1910 42i 



Brooklyn Entomological So- 

 ciety T 93, 194 



Causes of sculpture of in- 

 sects ^ 



Congress of Entomology, 

 First International 13, 46, TOO, 

 326, 327, 337, 363, 376, 434 

 and Plate XII. 



Congress of Zoology, Eighth 



Determination of insects, Dif- 

 ficulties of 475 



Economic, Entomology, Value 



of 232, 326, 363 



Editorials 42, 132, 182, 230, 2J 



326, 363, 418, 475 

 Entomological journals .... 278 

 Entomological literature 43, $7. 



136, 187, 233, 280, 3JS. 3^4, ; 



422, 470. 

 Entnnii ill laical Society of 



America ')-', 47^ 



Entomology in Great Britain 



and Ireland, Instruction in 47^ 

 Examination in Ent< 



Questions and answers 



from an 



Feldman Collecting 



144, 146, 238, 239, 33'. 3 



430, 483- 

 Florida, Collecting in 337. 



483- 

 Food and flies 



Fossil insects 



Galls 34i 



Guerin's Iconographie. Pan- 



of publication of 



Hawaiian Entomological 



ciety 28 ' 



Heink Entomological Club 

 Importance of study of 



sects 



International 47, 47^ | n j ;m ,ii,. paralysis .md "i- 



Convention of Entomologists 

 at Decatur, 111. 



Costa Rica, Entomological re- 

 searches in 



Customs duties on insects 

 135, 181, 231, 477- 



cts 

 Japanese translation ol 



som's Entomo! 

 London Ti't's n|1 Entor 

 



