GENERA

Zimmerman, Elwood C., 1942, Anthribidae Of Guam, Insects of Guam I, Honolulu, Hawaii: Bernice P. Bishop Museum, pp. 65-72 : 65-66

KEY '£0 TOTHE GENERA

1. Antennae inserted on the front of the head at the inner dorsal corners of the eyes, the first segment much longer than the second........................ Jordanthribus .

Antennae inserted at the sides or front of the base of the rostrum at the lower edge of the eyes, the first segment shorter or not distinctly longer than the second.................................................................................................................. 2

2(1). Interscrobal area as broad or broader than the interocular area; antennae inserted below the middle of the eye and distinctly more on the side of the rostrum than on the front of the rostrum.......................................................... Mauia .

Interscrobal area slightly or conspicuously narrower than the interocular area; the antennae inserted near the inner lower corners of the eyes and more on the front than the side of the rostrum...................................................... 3

3(2). First hind tarsal segment about as long as 2 to 4 inclusive...................... Araecerus . First hind tarsal segment much shorter than the three following segments together, usually not longer than 2 plus 3............................................................... 4

4(3). Body, in the Guam species, bare and shiny above; dorsal prothoracic carina curving forward to the sides and distant from the base at the sides, not angulate at the sides and without a distinct lateral carina................ Notioxenus .

Body pubescent; dorsal prothoracic carina reaching the sides close to the base and there conspicuously angulate and with a distinct lateral carina.... 5

5(4). Less than 2 mm. long; lateral prothoracic carina straight, not reaching the middle, not upturned at the apex; first fore tarsal segment slender, fully twice as long as broad................................................................................ Melanopsacus .

More than 4 mm. long, lateral prothoracic carina reaching the middle and there slightly curved upward; first fore tarsal segment short and broad, as broad as long............................................................................................ Araeocorynus .