- 5 4- 
in eastern Montana than in the Red River Valley, In the vicinity 
of Aberdeen, S. Dak., it was estimated that 60 per cent of the 
larvae had Emerged from the livestock, 
SoUtH F. C. Bishopp: At Aberdeen, S 6 Dak., W. S. Dove reports the season 
Dakota fairly well advanced and some Eypoderma larvae already mature and 
out of the hosts on April ?• 
Texas F, C, Bishopp: Cattle grubs were rather more abundant in the 
vicinity of Dallas during the past winter than usual. However, 
warble flies were apparently no more abundant than normal. Cattle 
became free of all grubs about the middle of March. At San Angelo, 
however, 0. G. Babcock found a few specimens which would not be 
mature for about two weeks when he examined herds on March 20. 
BLOWFLIES 
Texas F. C. Bishopp (April 20): Phormia regina Meig. have been v ery 
abundant during the past month. They are now sufficiently numerous 
to necessitate trapping and other control measures at the packing 
houses. (May 2k) i The black blowfly is still present in considerable 
numbers, the development of the species favored by the coil spring. 
At the packing houses in the vicinity of Dallas they still outnumber 
C_, mac ell ari a. 
D„ C. Parman (May 21): Cynomyia and Call iphora disappeared. The 
latter part of March the change in species during the last month 
for a crapping period of ^8 hours is as follows: 
Species April 22 May 21 
Chrysorayia maceilaria 2,080 2,0*40 
Hiormia regina 360 17 
Luc ilia s ericata *t,000 1,201 
Luc ilia caesa r 2,^80 U00 
STABLE FLY ( otomoxys c alcitrans L.) 
Texas F, C. Bishopp (April): During warm periods in April stable flies 
have been quite annoying to dairy cattle in the vicinity of Dallas. 
(May 24-): The stable fly has caused some annoyance to dairy 
stock and work animals in the vicinity Off Dallas throughout this 
month. They are apparently no more numerous than usual. 
HORSE-FLIES ( 
Texas D. C« Parman (May 23): The canyon horse-fly, Tabanus r ubescens 
Bellardi, has increased some during the month but is not yet very 
annoying to cattle and horses except in local areas where two 
to five flies are usually on most cattle. The unusual occurrence 
is that the flies are as numerous as far south as Carizso Springs 
as they are in the mountains, and the mountain infestation is 
