Genyocerus puer (Schedl)

Beaver, R. A. & L. - Y, 2007, A review of the genus Genyocerus Motschulsky (Coleoptera: Curculionidae: Platypodinae), with new synonyms and keys to species, Zootaxa 1576 (1), pp. 25-56 : 39

Genyocerus puer (Schedl)

( Figs 23–25 )

Diapus puer Schedl, 1970: 223 .

Genyocerus puer (Schedl) . Wood & Bright, 1992: 1095.

Diacavus trispinatus Schedl, 1974: 471 . Synonymy: Roberts, 1993: 28.

Genyocerus puer trispinatus ( Browne, 1985: 197 nec Schedl, 1974). Given subspecific status by Roberts, 1993: 29.

Taxonomy: Somewhat confusingly, Roberts (1993) divided this species into two subspecies, G. puer puer (Schedl) , with the male of Diacavus trispinatus Schedl as synonym, and G. puer trispinatus (Browne) based on females described by Browne (1985) as Genyocerus trispinatus Schedl. Roberts (1993) described for the first time the female of G. puer puer and the male of G. puer trispinatus . Genyocerus puer fergussonus Roberts ( Wood & Bright 1992) is a nomen nudum based on specimens labelled by Roberts as Genyocerus fergussonus Roberts but later included by him ( Roberts 1993) under the name G. puer trispinatus . We have examined a male paratype of G. puer (NMW) and two females from the series described by Roberts (1993) as G. puer puer (BPBM) , the female lectotype of G. puer trispinatus (BMNH) and two males and two females of ' G. fergussonus' (BPBM). Given the extent of variation found in other species of Genyocerus , we believe that only a single species is represented and that recognition of G. puer trispinatus as a subspecies is not valid. The species is unique in the genus in that the male has many more mycangial pores than the female. The male has 30–40 large pores on each side of the midline; some females have 8–10 pores but others have none.

Distribution: Papua New Guinea only.

Biology: Specimens have been collected from sticky traps placed on felled trees of Anisoptera sp. and Hopea sp. (Dipterocarpaceae) ( Roberts 1993).

Figures

PLATE 7. FIGURE 23. Genyocerus puer (Schedl) dorsal view of male. FIGURE 24. Genyocerus puer (Schedl) dorsal view of female. FIGURE 25. Genyocerus puer (Schedl) lateral view of head of female.