Perkinsiella thompsoni Muir

Swezey, O. H., 1946, Notes On Some Fulgoroidea Of Guam, Insects of Guam II, Honolulu, Hawaii: Bernice P. Bishop Museum, pp. 149-156 : 150

1. Perkinsiella thompsoni Muir ,

Haw. Ent. Soc., Proc. 2: 240, 1913.

Piti, May 2; Fonte Valley , Aug. 7; Dededo, Aug. 11. All by Swezey.

This sugar cane leafhopper was described from specimens collected in Guam by Fullaway in 1911 . It was later collected more abundantly by Muir in Java, which is more likely its home. Eventually it may be found on intervening islands. We found it scarce in Guam. It was never conspicuous or numerous enough to be injurious to the cane.

Whenever eggs were found, they were heavily parasitized by a mymarid which apparently is the same species which was introduced from Queensland to Hawaii in 1904 ( Paranagrus optabilis Perkins ). At Sinajana , June 8, of 43 eggs examined, 80 percent were parasitized . At Fonte Valley , Aug. 7, the few eggs found were all parasitized . At Dededo, Aug. 11, eggs examined were 78 percent parasitized . At the Agricultural School Farm , Piti , April 30, one exit hole of Ootetrastichus was seen in a cane leaf, but no other evidence of this parasite was found . It is apparent that Paranagrus has sufficient control of this leafhopper to prevent its being a pest.