Crawford, D.L.

Proceedings of the Hawaiian Entomological Society

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423Psyllidae of Molokai.BY D. I,. CRAWFORDA small collection of Psyllidae (Chermidae) was submitted byO. H. Swezey as a result of a recent visit to Molokai. As onewould expect, because of the proximity of this island to others,there are no outstandingly distinct species, but there appear tobe some local differentiations because of the isolation, just ason the other islands.Trioza molokaiensis n. sp.This species is very close to T. ohiacola, of which it is perhapsa derivative. It also seems to resemble T. lanaiensis ratherclosely. Jt differs from T. ohiacola chiefly in having longergenal cones, about as long as vertex, while the older species hasshort cones.The average size is a little larger than T. ohiacola and thecolor of body is somewhat lighter, although there are someindividual specimens that are quite as dark as the older species.The wing venation is practically identical with T. ohiacola, butthe costal margin has a fringe of short setae. The venation isdifferent in minor respects from that ol T. lanaiensis.Genitalia of both sexes are essentially like T. ohiacoh.Described from many specimens of both sexes collected byO. H. Swezey at Kamiloloa, Molokai, December 20, 1925. onCoprosma (uncertainty as regards record of host plan:), at anelevation of 3,200 feet above sea level; one specimen at samelocality on Metrosideros. Two specimens by E. H. liryan, atKawela, elevation 3,700 feet, December 23, 1925.Trioza lanaiensis Crawford.This species appears to be present on Molokai, represented inthis collection by several specimens taken by E. II. liryan, atKawela, elevation 3,700 feet, on Metrosideros, December 23, 1925.Proc. Haw. Ent. Soc, VI, No. 3. Oct., 1927.424Kuwayama nigrocapita Crawford.A single specimen of this Hawaii and Lanai species wastaken by E. H. Bryan, at Kawela, Molokai, 3,700 feet, onMetrosideros.Kuwayama gracilis Crawford.This pretty species is well represented by several specimensessentially like the Oahu specimens available for comparison.This species has been previously reported from Molokai. Inthis collection two localities are represented: Kamiloloa, December 20, 1925, on Coprosma (O. H. Swezey) ; and Kawela,December 23, 1925, on Metrosideros (E. H. Bryan).Paurocephala sp.One specimen of this tropical genus was taken by E. H. Bryanat Kamiloloa, December 20, 1925, on pokeweed, but the antennae are lacking and I hesitate to make a new species for this,which probably will be necessary on examination of more specimens. This is the first occurence of this interesting genus inthe Hawaiian Islands.

Psyllidae of Molokai

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Psyllidae of Molokai

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