Melolonthinae Samouelle, 1819

Prokofiev, Artem M., 2016, On the Phytophagous Scarabs of the Subfamilies Dynastinae, Rutelinae, and Melolonthinae from the Schouten Islands (Kepulauan Biak), Indonesian Papua (Coleoptera: Scarabaeidae), Species Diversity 21, pp. 71-77 : 72-73

Subfamily Melolonthinae Samouelle, 1819 Apogonia sp.

Material. 2 females, Indonesia, Papua, Yapen I ., northern coast, Rosbori village , on leaves by day, 13– 14.11.2012, A . M . Prokofiev leg.

Remarks. This is a dark reddish-brown, dorsally glabrous, moderately large (10mm) species with a broadly and conspicuously concave anterior margin of the clypeus, a tridentate protibia, and the thorax and abdomen bearing very short aciculate setae in the punctures alternating with a few moderately long hairs on the sides of the metasternum. The poorly defined species A. papua Lansberge, 1880 can be excluded by indications of “elytris rugosopunctatis” and “pygidio rugoso” in the original description ( Lansberge 1880: 119); my specimens have flat spaces between the elytral punctures and a rugopunctate pygidium. The Papuan representatives of the A. expeditionis complex ( A. expeditionis s.l.) differs from my specimens in having an almost straight anterior margin of the clypeus, a hairy thorax, and longer setae on the abdomen. This is apparently an undescribed species but incomplete knowledge of Indo-Australian Apogonia and the absence of males prevent its formal description here.

Phytophagous scarabs of Schouten Is., Papua 73