- 32 “ 
Colorado. F. C. Bishopp et al. ( January 23): About 50 percent of the cattle 
in a herd at Virginia Dale were found- to be infested with H. lineatum , 
ranging from 1 to 25 per head. 
Wyoming. F, C . Bishopp et al. (January 24): Dairy herd of 40 head at Laramie 
found to be lightly infested with grubs. Only 1 animal raised locally. 
The other infested animals were from Casper, Wyo., and Johnstovm, Colo. 
(February 27): Three herds were examined near Buffalo. One had only 4 
animals which -carried 2, 3» l6, 17 grub's-* All extracted were H. lineatun , 
except 1, which was a second- iimtar H, bo vis Deg. The second herd of "34 
head had 2 animals uninfested and the others with from 1 to 63 grubs. All 
but 1 of those extracted were H. lineatum , and the 1 was a second-instar 
H, bovls . - -In the third dairy herd 12 animals "were examined. One had no 
grubs and -the other had from 1 to 27, all H. lineatun . A few. grubs were 
approaching maturity in this locality. A group of about 123 head of calve 
and bulls near Parknan were examined. Most of those old enough to have 
grubs were infested, the number ranging from 1 to about 40. All but 2 of 
these -Were H, lineatum ; these wore second-instar H. bovis . A few were 
nearing maturity, probably beginning to leave the host in about 10 days. 
Four dairy herds were examined near Casper. In 1 of these 38 animals 
were grub-free and 9 were infested with from 1 to 10 grubs, all H. line atm 
In the second herd all were infested with from 1 to 17 grubs, 27 of which, 
were extracted and all were H. lineatum except 1, which was a second— instai 
H. bovis . In the third herd all of the 13 animals examined were infested 
with from 1 to 10 grubs, all H f lineatum . I11 the fourth herd 4 animals 
were examined. Two were full and the other 3 carried 1, 1, and 20 grubs. 
All extracted wore H. lineatun . Only 4 of the grubs x^rere approaching 
maturity. One herd of 15 dairy cattle was examined near Douglas. Seven 
of these were free of K, lineatum grubs, the others carried from 1 to 20 
grubs, only 4 of which were- in the third instar (early). Two herds of 4 
animals each were examined near Wheatland. These carried the following 
numbers of H. lineatum grubs: 0, 15 * 19, 25 and 6, 1, 2,.'21-. Only 1 of 
those extracted was approaching maturity. 
STABLSFLY ( Stonoxys c ale it ran s L. ) 
Texas. F. W. Laake (February 15); Breeding has continued uninterrupted in 
nature all winter in the vicinity of Dallas. As many as 50 flies per 
animal observed feeding at 1 tine on the forelegs of cattle on balmy days 
during January, Considerable annoyance to dairy cows and especially to 
calves in corrals observed on warn days throughout the winter. 
BLACK BLOW • FLY ( Phormi a- re gin a, Meig.) • - ■ 
Wyoming. F, C . Bishopp (February 27): One adult found in a store at Laramie, 
Fairly active specimen taken- -in- room at Sheridan. 
SHORT-HOSED CATTLE LOUSE ( Ha.enat op inus eury s t c r nus Witz.) 
Texas. E, W. Laake (February 20 ): Reported that about 9,000 cattle in Hemphill 
County were dipped during the winter for the control of long-nosed and 
short-nosed cattle lice. Generally, the short— nosed cattle louse is 
apparently less abundant this winter than last year, but reports have been 
