Hylaeus kauaiensisIslands: Kauai
Locations: Kauai - (Alakai Swamp Trail, Kahuamaa Flat, Kokee Rd., Mohihi Trail, Mt. Kahili, Na Pali-Kona FR)
Habitats: Montane wet and mesic forest
Plants: Metrosideros, Scaevola, Styphelia
Xerces: No info.
Insects of Hawaii: Medium-sized bees with clear to smoky wings, propodeum with wellseparated, lineate rugae in basal half or less, otherwise smooth to brow. Male with broad whitishyellow mark partly divided by epistomal sulci; arched frontoclypeal suture; unusual wide supraclypeal area, W/L ratios 1.6-1.9; shiny paraocular depression; process of S8 without flexure. Female marked with yellow in lower paraocular areas and at sides of pronotal collar, pronotallobes unmarked; closely resembling H. mutatus, but with longer hairon scutum and always lacking marks on pronotallobes.
Fullaway (1918:394) pointed out the possible synonymy of H. kauaiensis with H. unicus and H. binominatus, known then as N. laticeps. However, the process of S8 is without a flexure and the gonoforceps are slightly shorter than the penis valves in H. kauaiensis, whereas the other two taxa, synonymized below under H. unicus, have the process of S8 with a flexure and the gonoforceps subequal to the penis valves. The apex of the metasoma of female H. kauaiensis has conspicuous dense, erect hair as in H. haleakalae.
Insects of Hawaii Volume 17
Hylaeus near military lands