- 815 - 
year to Movenber and December, and is now normal or slightly' -above. Dor the 
' firsb time: this area has as many.. £. americana as the Western Escarpment .in these 
months. .The fly did --not overwinter on the Eastern -Escarpment. 
C. americana did not overwinter on the Edwards Plateau and north and ’west 
■of it. - It;;wa.s re infested- slightly later than normal, but the , infestation built 
' .tip rapidly during May, and June- was nearly normal., The July-October population 
was approximately 50 .percent of normal and . the Movenbcr-Decembe.r population was 
normal, but very low, and the fly is still present at the end of the year c . 
The Rio Grande Plain had the - highest population.- of £. americana recorded 
for the period JanUcO.ry-June. The population decreased rapidly to practically 
none in the fall, ant 1 is practically none, or normal, at the end of the year. 
■ The population or. the. Gulf coast has boen low through the entire year, 
except for a few isolated places near Houston and. westward. Apparently only 
the western part of east Texas .became reinfested this year early in -May, and 
. this infestation never built up. to -any considerable extent, Louisiana has not 
been. indicated as-. inf ested during- the year. 
The southeastern, infestation was confined to a very small population in 
central aha -southern. Florida: at. the beginning of the year, developed a con- 
siderable pwiber of cases': in. Georgia,, and Alabama during the year, and is prac- 
tically, nothing a,t the end '.of the year, as has been - indicated by reports, 
liofthwestern Mississippi was infested by a shipment of livestock from Texas 
early in June and by fall the infestation had spread.' over several counties into 
southern Tennessee and- a considerable number of livestock were reported as in- 
fested, in- the sane localities. 
Reports indicate several established inf es.ta.ti.ons of varying degrees of 
intensity in the - Northeastern Stales by. introduction in infested animals. The 
most extensive of these was centered in • southwestern . Indiana, southern Illinois, 
and northern Kentucky. . 
■ Reports indicate that northern Texas, Oklahoma*, .and south-central Kansas 
wore naturally reinfested slightly .later . than normal, and some rather severe 
infestations developed in parts of Oklahoma. Mo reports- have been received 
- • from others, of these States, . — 
Roberts indicate Mew Mexico .to- have been reinfested on both the west and 
east -early in- the- season from Arizona and Texas* and infestations became rather 
severe in -.local areas, especially about Roswell .and Rodeo. Reports and surveys 
indicate Arizona, to have, had an-- unusually severe outbreak during- the entire 
year, and in the Salt and Gila River Valleys infestation was severe until the 
middle of- December, : -a • - - ■ 
: Reports indicate that. C. p an-eric ana did not overwinter in north San Joaquin 
* . or Sacramento Valleys, of California;,:. Infestations are indicated light to norma 
in- southern California during the' : ehPire year. The first infestation of £> 
... americana over recorded in Montand' was reported, but development of the infe-h.-a- 
. tion appears ; to. have*. been .practically' nil. A report indicates .that £. antn i- 
Cana- mr 00 ably infested some animals in southern Utah in, Atw^i&t - - Ean-van, 
-Bureau of entomology and an. t i-na , U* Tb, A„ X 
