40 PEELIMIIS^AEY EEPOKT OX ALFALFA WEEVIL. 
Vertebeates. 
During the season of 1911 tlie Biological Survey, at the suggestion 
of the writer, kindly detailed an assistant, Mr. E. R. Kalmbach, to 
study the bird and other vertebrate enemies of the alfalfa weevil, 
and the follo^^ing is a list of vertebrates found to feed on the alfalfa 
weevil in Utah, as determined by ^Ir. Kalmbach, May 7, 1911, to 
July 25, 1911. 
Wilson's phalarope, Steganopus tricolor; killdeer, Oxyechus vociferus; valley quail, 
Lophortyx californica vallicola; mom-ning dove, Zenaidura macroura carolinensis; red- 
shafted flicker, Cola2')tes cafer coUaris; Arkansas kingbird, Tyrannus verticalis; Say's 
Fig. 26. — Itoplectis masculator, a parasite of the alfalfa weevil: Adult female; lateral view of first abdominal 
segment at right. Much enlarged. (Original.) 
phoebe, Sayornis sayus; Traill's flycatcher, Empidonax trailli; desert horned lark, 
Otocoris alpestris leucolsema; magpie. Pica pica hudsonia; bobolink, Dolichonyx oryzi- 
vorus; cowbird, Molothrus ater; yellow-headed blackbird, Xanthocephalus xantho- 
cephalus; thick-billed red-winged blackbu'd, Agelaius phoeniceusfortis; Western mead- 
owlark, Sturnella neglecta; Bullock's oriole, Icterus bullocJci; Brewer's blackbird, 
Euphagus cyanocephalus; house finch, Carpodacus mexicanus frontalis; English sparrow, 
Passer domesticus; Western vesper sparrow, Pocecetes gramineus conjinis; Western 
savannah sparrow, Passerculus savannarum alaudinus; Western lark sparrow, Chon- 
destes grammacus strigatus; white-throated sparrow, Zonotrichia albicollis; Brewer's 
sparrow, Spizella hreweri; Western chipping sparrow, Spizella socialis arizonse; desert 
song sparrow, Melospiza melodiafallax; green-tailed towhee, Oreospiza chlorura; black- 
