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The Bishop Museum Collection of Psyllidae 
(Homoptera). 
BY D, L.. CRAWFORD. 
(Presented at the meeting of June 7, 1923.) 
Several hundred specimens of Hawaiian Psyllidae in the 
Bishop Museum were recently assembled by E. H. Bryan and 
examined by the writer. Twelve species were found to be 
represented in this collection, as follows: 
Trioza tolan Kirkaldy. 
Trioza ohiacola Crawford. 
Trioza hawaiiensis Crawford. 
Hevaheva perkinsi Wirkaldy. 
Hevaheva gifiardi Crawford. 
Hevaheva silvestris Kirkaldy. 
Hevaheva monticola Wirkaldy. 
Kuwayama minuta Crawford 
Kuwayama nigricapita Crawford. 
Kuwayama gracilis Crawford. 
Cerotrioza bivittata Crawford. 
Megatrioza palmicola Crawford. 
The following observations may be of interest. Maui and 
Kauai are both represented in this collection, whereas in pub- 
lished records of Psyllidae neither of these islands has figured 
much. 
Trioza iolani occurs on Maui, judging from the presence 
of one specimen of this species from Iao Valley, on Ohia 
lehua. 
Trioza ohiacola is a more widely distributed species, occur- 
ring on most if not all the islands and forming galls on leaves of 
Ohia lehua, as does Trioza iolani also. This is a variable species 
and seems to merge into T. iolani. Specimens, some very typi- 
cal of the species and some not very typical, appear in the 
collection as from Kilauea, Glenwood, Kaiwiki and South 
Kona (all on Island of Hawaii); Iao Valley, Maui; and a 
number of upland points on Oahu. 
Proce. Haw. Ent. Soe., V, No. 3, December, 1924. 
