| arbovirus surveillance in six states during 1972. | a virus surveillance project was established and maintained during 1972 along 10 major river drainages in six states. mosquitoes, biting flies, and blood specimens from sentinel equines were collected during 83 field trip visits to 141 arthropod collecting sites and 22 sentinel locations from april into december 1972. there were 173,074 mosquitoes tested and 303 arboviruses isolated from 11 of 41 species. from 13,388 biting flies tested, 8 arbovirus isolations were obtained in 1 of 5 species. th ... | 1976 | 7148 |
| tree hole culicoides (diptera: ceratopogonidae) of the central plains in the united states. | three-hundred eleven tree holes were sampled for culicoides at 27 localities in colorado, kansas, nebraska, oklahoma and south dakota. of the 311 samples taken, 170 produced specimens, and 2,899 culicoides were collected including 12 species. the 5 most common species (number collected) were c. guttipennis (1,468), c. arboricola (355), c. paraensis (292), c. elemae (186) and c. footei (159). other species collected were c. villosipennis, c. nanus, c. hinmani, c. oklahomensis, c. snowi, c. lahill ... | 1991 | 1787409 |