VOLUME 55, NUMBER 1 
75 
PACIFIC COAST ENTOMOLOGICAL SOCIETY 
J. R. Anderson 
President 
John Doyen 
President-elect 
L. G. Bezark 
Secretary 
P. H. Arnaud, Jr. 
Treasurer 
PROCEEDINGS 
THREE HUNDRED AND EIGHTY-FOURTH MEETING 
The 384th meeting was held 17 February 1978 at 8:00 p.m. in the Morrison Auditorium 
of the California Academy of Sciences, Golden Gate Park, San Francisco, with President 
Anderson presiding, and 40 members and 37 guests present. 
The minutes of the meeting held 16 December 1977 were summarized. The following 
persons were elected to membership in the Society, regular members: Dr. John P. Figg- 
Hoblyn, Antonio Paulo Assis de Moraes, Dr. Charles D. Howell, Dr. Kirby W. Brown, Dr. 
Gene R. Kritsky; student members: Greg Spicer, Arthur L. Chan; regular family member, 
Mr. Robert Buickerood; student family member: Mrs. Lynn Kimsey. 
Dr. E. Smith of the California Academy of Sciences discussed a recent volume on insect 
morphology. Dr. Thomas Eichlin, California Department of Food and Agriculture shared 
information relating to an infestation of sesiid borers in Lewiston, California. The follow¬ 
ing note was presented: The activity of Lepidoptera on Oahu, Hawaii in January. —During 
an eight day visit to the island of Oahu in mid-January, 1978, there were eight species 
of Rhopalocera in flight, out of a possible 14 or so known for the Hawaiian Islands. 
The eight species displayed here are: Hylephila phyleus (Drury); Papilio xuthus Linnaeus; 
Pieris rapae (Linnaeus); Strymon bazochii gundlachianus (Bates); Lampides boeticus (Lin¬ 
naeus); Vaga blackburni (Tuely); Agraulis vanillae incarnata (Riley); and Danaus plexippus 
(Linnaeus). 
The cabbage white, gulf fritillary and monarch appeared to be generally distributed on 
both the windward and leeward sides of Oahu. The remaining five species were found at 
specific locales only on the leeward (or sunny, dry) slopes. Gulf fritillaries were found in 
very large numbers, especially from the Kalihi district to Koko Head. They showed little 
variation, although averaging smaller than in mainland California. Adult monarchs were 
plentiful in many areas, and numerous ova, larvae and pupae were observed. Among the 
breeding populations, a low percentage are albinos. The albinistic form is more prevalent 
in the winter months, and three were observed on 23 January in the greater Honolulu area. 
Additional species of butterflies recorded for the islands include: Erionota thrax 
Linnaeus; Vanessa tameamea Eschscholtz; Vanessa atalanta rubria (Fruhstorfer); Cyn¬ 
thia virginiensis (Drury); Cynthia cardui (Linnaeus); and Tmolus echion (Linnaeus). 
The two endemics (V. blackburni and V. tameamea ) are found only on the various 
islands in the Hawaiian chain. The two hairstreaks ( S. bazochii and T. echion) were 
introduced from Mexico to control the also introduced plant lantana. All of the other 
species listed above appeared on the islands accidentally, some quite recently. The citrus 
swallowtail was first discovered on Oahu in April, 1971—presumably from other Pacific 
islands or southeastern Asia. The pae or bean blue was introduced nearly a century ago and 
has since become quite abundant. It is widely distributed in the Pacific, Philippines, 
Japan, China, etc., to southern Europe. Heterocera found on Oahu in January included: 
Sphingidae —Macroglossum pyrrhostictum (Butler); Noctuidae —Plusia chalcites Esper., 
Melipotis indomita (Walker), and Hypena obsoleta Butler, endemic, type 
locality Oahu; Geometridae —Semiothisa santaremaria (Walker), the Koa haole moth; Pyrali- 
dae —Hymenia recurvalis (Fabricius) and Hedylepta localis (Butler), endemic, type locality 
