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The Number of Draeculacephala Species in Hawaii (Homoptera: Cicadellidae)

Authors
Journal
Proceedings of the Hawaiian Entomological Society
0073-134X
Publisher
Smithsonian Institution Biodiversity Heritage Library
Publication Date
Disciplines
  • Biology
  • Ecology
  • Economics
  • Medicine

Abstract

Vol. XXI, No. 2, December, 1972 239 The Number of Draeculacephala Species in Hawaii (Homoptera: Cicadellidae)l Banpot Napompeth and Toshiyuki Nishida university of hawaii, honolulu, hawaii The genus Draeculacephala Ball, 1901, was considered a synonym of Acopsis Amyot & Serville, 1834, by Evans (1947). Zimmerman (1948) and Young (1949) followed Evans in the use of Acopsis. However, Oman (1949) after examining the type specimens of the genotype Acopsis viridicans Amyot & Serville, from Madacasgar affirmed that Draeculacephala is a distinct genus from Acopsis. The distribution of the genus Draeculacephala extends from Arctic North America to Cuba, Mexico and Hawaii. There are at least 21 species of Draeculacephala in the Nearctic region (Young & Davidson, 1959). The species in the genus Draeculacephala have been of interest to ento mologists because they have been of either potential or real economic importance. In the temperate areas certain species of this genus are known to attack cereal and forage crops (Gibson, 1915). In California, D. minerva Ball has been reported to be a vector of Pierce's disease of grapes (Frazier, 1944; Jensen, 1946; Freitag et al.9 1952). Another species, D. mollipes (Say), has been reported to attack sugarcane in continental United States (Muir, 1913). In Cuba D. portola Ball is known to attack rice (Young & Davidson, 1959). In Hawaii, D. mollipes was reported to be a serious pest of water cress (Holdaway, 1946). Recently large numbers of Draeculacephala, presumably D. minerva, were observed on rice and other grasses at Wailua, Kauai. The same species was also observed at Pearl City, Oahu. During the course of recent studies on the biology and ecology of Draeculacephala attacking rice, it became evident that there was confusion in the past as to how many species existed in Hawaii. The first report of the occurrence of Draeculacephala in Hawaii was that of Muir (1913). The specimens were collected by J. Nunes in Honolulu in 1912, and iden tified by Van Duzee as

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