Delphacodes guamensis, Metcalf, 1946

Metcalf, Z. P., 1946, Homoptera, Fulgoroidea and Jassoidea of Guam, Insects of Guam II, Honolulu, Hawaii: Bernice P. Bishop Museum Bulletin 189, pp. 105-148 : 118-119

2. Tam.binia guamensis , new species (fig. 9, a-e).

Crown about one third longer than the width between the eyes; the lateral margin narrowed around the apex; median carina percurrent; posterior border sinuate with a definite notch on the median line. Face slightly longer than its greatest width; the dorsal margin narrow, broadly rounded, expanded to about the level of the compound eyes, then sinuate to just about the level of the antennae then narrowed to the clypeus; median carina percurrent, indistinct in the central depressed area. Pronotum about eight times as wide as its median length; anterior margin nearly straight; posterior margin deeply incised; the intermediate and median carinae conspicuous; the intermediate carinae merging with the median carinae at the anterior border; all three carinae percurrent. Mesonotum tricarinate; metanotum distinct. Tegmina with characteristic venation; costal and apical borders with a single row of small tubercles; the tubercles in costal and radial cells small but distinct.

General color of venter ochraceous yellow including legs; dorsal area of head and thorax ochraceous green; dorsal area of abdomen green; tegmina with a greenish cast.

Length: to apex of abdomen, 4.3 mm.; to apex of tegmina, 6 mm.

Holotype male, allotype female, Agat, May 31, on Hernandia sp. , Swezey; paratypes, one male, one female, Agat , May 31, on Hernandia, Swezey ; one male, Talofofo , June 17, Swezey ; one female, Upi Trail , May 5, Usinger ; one male, Machanao , June 4, on Piper guahamense, Swezey ; one male, Machanao , June 2, Swezey ; two females, Mt. Alifan, May 21, Swezey.

This species resembles boninensis and crini in having the face impressed in the median area. It differs, however, from these species in coloration, genitalia and other, minor, characters; therefore, I believe it best to describe it as new.