I knew I had seen something like it on some website somewhere and just started leafing through Coenagrionidae. Yes, of course, Mortonagrion! But the first logical suspect, with a sort of similar abdominal pattern, M. arthuri, has rather different appendages. But eventually I found it in Lieftinck (1934): Mortonagrion falcatum. Recognizable by its strange, quite distinctive, appendages. Records are scarce, but it is a widely distributed species, occurring in Indonesia, Singapore, Malaysia, Myanmar, Thailand and with a record from Lao PDR. On the IUCN Red List it is hypothesized that it occurs in Cambodia and Vietnam. Well, it does (in Vietnam, but given the location of Phu Quoc it is highly likely it also occurs in Cambodia. See the pictures below of this interesting midget.
|Not a very conspicuous little insect at all, when it perches over brown leaves, but actually rather pretty: Mortonagrion falcatum|
|The distinctive appendages, the superiors broad and up slanting.|