TY - JOUR AU - Ringo, John, M. AB - Abstract There are no morphological characters differentiating Drosophila grimshawi Oldenberg and D. pullipes Hardy and Kaneshiro; they can be distinguished by pigmentation, the legs and pleura of pullipes being black, while those of grimshawi are yellow (Hardy and Kaneshiro 1972). A cross between the pullipes type male and virgin females of grimshawi (Stock #G1, Maui) yielded sterile F1 hybrids (see Carson 1971, where pullipes was referred to as “new species no. 1,” and Hardy and Kaneshiro 1972). In this laboratory, pullipes males (Stock #R130, Hawaii, collected by S. L. Montgomery) crossed to grimshawi virgin females (Stock #PK9, Molokai) yielded a weak but partly fertile F1 in which females were in excess (>80% females) and a weak F2, but no further generations. The F1 hybrids were intermediate and uniform in leg pigmentation, whereas the F2 hybrids were continuously variable for leg color, indicating a polygenic basis for the difference. The metaphase karyotype and the polytene chromosome banding sequences are identical in pullipes and grimshawi (Clayton et al. 1972). D. grimshawi is found on all the major Hawaiian Islands except the youngest, Hawaii, while pullipes is found only on the island of Hawaii. D. pullipes presumably evolved from a migrant grimshawi founder, probably within the last 800,000 years (Clayton et al. 1972, Macdonald and Abbott 1970) This content is only available as a PDF. © 1974 Entomological Society of America TI - Behavioral Characters Distinguishing Two Species of Hawaiian Drosophila, Drosophila grimshawi and Drosophila pullipes (Diptera: Drosophilidae) JO - Annals of the Entomological Society of America DO - 10.1093/aesa/67.5.823 DA - 1974-09-15 UR - https://www.deepdyve.com/lp/oxford-university-press/behavioral-characters-distinguishing-two-species-of-hawaiian-kTg00dsvH8 SP - 823 EP - 823 VL - 67 IS - 5 DP - DeepDyve ER -