| sympatry in the culicoides variipennis complex (diptera: ceratopogonidae): a taxonomic reassessment. | we report sympatry among larval populations of the culicoides variipennis complex in widespread and diverse aquatic habitats throughout the united states. six sites in california, nevada, new mexico, and texas were co-inhabited by c. v. occidentalis and c. v. sonorensis, whereas 8 sites in florida, georgia, louisiana, maryland, and texas were co-occupied by c. v. sonorensis and c. v. variipennis. no intermediate forms were identified either electrophoretically or morphologically in adults reared ... | 2000 | 15218909 |