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MAN AND ANIMALS 



SCREWWORM ( Cochliomyia hominivorax ) - Total of 9 cases reported in U.S. August 

 1-7 as follows: TEXAS - Bowie 4, Kinney 1; ARKANSAS - Little Rock 3; ARIZONA - 

 Cochise 1. (Anira. Health Div.). 



FACE FLY ( Musca autumnalis ) - MISSISSIPPI - Ranged up to 25 per face on cows in 

 Monroe County. (Robinson) . KENTUCKY - Heavy (15 or more per head) on livestock in 

 Russell, Wayne, Clinton, and Franklin Counties. (Barnett) . WISCONSIN - Light to 

 moderate on cattle in most areas. Pinkeye problem in young cattle, apparently 

 associated with this insect, reported near Verona in Dane County. (Wis. Ins. 

 Sur.). IOWA - Ranged 5-20 (average 9.9) per face on untreated cow herd on pasture 

 in Dallas County. (Iowa Ins. Sur.). NEBRASKA - Ranged 20-25 per face on Lincoln 

 County range herds. (Campbell). UTAH - Continued to increase in several Box 

 Elder, Cache, and Weber County localities; much annoyance to horses and cattle 

 reported. (Knowlton, Boyer) . 



HOUSE FLY ( Musca domestica ) - NEBRASKA - Averaged 25-30 per Scudder grid in 

 feedlots examined near North Platte, Lincoln County. (Campbell). 



MOSQUITOES - OHIO - Females averaged 38.4 per trap per night in 5 traps operated 

 nights of July 26 and 27 in Franklin County; ranged 15-203 per trap. (Dept. 

 Health). MINNESOTA - Cool nights restricted movement, resulting in decrease in 

 trap and evening bite collections. Trap collections for week ending July 31 

 totaled 6,061 females compared with 16,000+ previous week. Aedes vexans still 

 81 percent of total. Coquillettidia per turbans , well past peak numbers, comprised 

 7 percent of specimens. A. vexans dominant in daytime and evening bite collec- 

 tions. A. f itchii , A. stimulans , and A. excrucians still taken in bite collec- 

 tions! TMinn. Pest Rpt . ) . ARKANSAS - Averaged about 500 per light trap per night 

 in Lonoke County; about half Psorophora conf innis and remainder Anopheles spp. 

 (Boyer) . 



Venezuelan Equine Encephalomyelitis Situation - Federal quarantines had been 

 invoked in Texas, Arkansas, Louisiana, Oklahoma, New Mexico, and Mississippi as 

 of August 3. In south Texas, confirmed cases of this disease have been reported 

 in 11 coastal counties. In the quarantined States, a total of 1,100,000 horses 

 have been vaccinated. In the Cameron County area of Texas, the virus has been 

 isolated from 12 species of mosquitoes. (Anim. Health Div.). Aerial spray 

 applications in Texas and Louisiana expected to be completed by August 13, with 

 over 12,000,000 aggregate acres treated. (PPD) . 



HORN FLY ( Haematobia irritans ) - IOWA - Ranged 0-200 (average 43) per side on 

 untreated cow herd on pasture in Dallas County. (Iowa Ins. Sur.). NEBRASKA - 

 Ranged 700-800 per head on cattle along Platte River and in canyon pastures in 

 Lincoln County. (Campbell). OKLAHOMA - Heavy on cattle in Cotton County, moderate 

 in Garfield, Osage, and Carter Counties. (Okla. Coop. Sur,). TEXAS - Averaged 87 

 per animal on beef cattle in Mills County during period July 17 to August 3. 

 Populations increasing after recent rains. (Morrison, Smith). UTAH - Numerous on 

 unsprayed cattle in Box Elder, Davis, and Weber Counties. (Knowlton, Boyer). 



STABLE FLY ( Stomoxys calcitrans ) - IOWA - Ranged 1-6 (average 3.1) per leg on 

 untreated cow herd on pasture in Dallas County. (Iowa Ins. Sur.). NEBRASKA - 

 Ranged 25-30 per leg of cattle in feedlots examined near North Platte, Lincoln 

 County. (Campbell) . 



HOUSEHOLDS AND STRUCTURES 



OLDHOUSE BORER ( Hylotrupes bajulus ) - TENNESSEE - Specimen collected from stacked 

 lumber in Sevier County. C^ontrols applied. This is a new county record. (Williams 

 July 30) . 



