The Indo-Australian species of the genus Ropalidia (Icaria) (Hymenoptera, Vespidae) (Second Part)

CONTENTS Page Introduction................... 3 Subgenus Anthreneida White (supplement to previous revision in "Treubia", vol. 18, 1941).................. 4 Subgenus Paraicaria Gribodo.............. 37 Subgenus Icarielia Dalla Torre.............. 41 Literature................... 71 Index .................... 72 The present paper is to be regarded as a continuation of a revision of the Indo-Australian species of the genus Ropalidia Guérin (= Icaria Saussure), the first part of which was published in Java (van der Vecht, 1941), a few months before the outbreak of the war in the Pacific. That part dealt with the morphology and the distribution of the species which are distinguished by having a more or less distinct raised carina separating the anterior and the lateral areas of the mesepisternum ("mesopleura"). It was my intention to publish supplementary notes on the bionomics of these species, together with a revision of the remaining species, in a second part, but war conditions made this plan fall through. Owing to various circumstances, the work on this subject was not resumed until recently. In the following pages I have first brought together some additional information on the previously discussed species (subgenus Anthreneida White). Unfortunately this chapter is very fragmentary, mainly because the greater part of my collection of nests together with the accompanying notes was lost during the war. Then follows a discussion of the Oriental