Prionocyphon serratus, n. sp.

(Figs 75, 76, Table 2)

Type material. ♂ Holotype: Mitchell River Settlement, Qld. 30.iv.70, A.L.Dyce \ from large open cavity 3' above ground level in mango tree \ larva in spirit collection (ANIC).

Habitus. Oval, with wide head. BL 2.6 mm, BL/BW ~1.55. HCW equals ~64% of BW. Antennae filiform, not serrate. Head and pronotum bright reddish brown, elytra a little darker brown.

Male. Segments 8 and 9 as in congeners (Table 2). Genitalia similar to P. bidentatus but differ by more slender, basally less wide parameres with only shallow furrow for genital hook whose bend is more rounded, less angular (Fig. 75) than in P. bidentatus . Prosthemes more slender and finely serrate along outer edge. Parameroid strong and longer than prosthemes and phallic lobes, base concealed. Crown of fine plicae at base of phallic lobes (Fig. 76) more exposed than in P. bidentatus . Basal connection between two lobes bearing a few delicate triangular teeth. Membranous surface of lobes themselves showing only a few short longitudinal lines.

Female. Unknown.

Note. I have not seen the larva mentioned on the type label.

Etymology. The Latin adjective serratus describes the serrate outer edge of the prosthemes.