02672nas a2200337   4500008004100000245008000041210006900121300001200190490000700202520177200209653001301981653001201994653001702006653001702023653001502040653001302055653002002068653002102088653001602109653000902125653001602134653001402150653001602164653001502180653002002195653001302215653002002228653001902248100002302267856004402290       1941                        eng d00aEncyrtidae of the Marquesas and Society Islands (Hymenoptera, Chalcidoidea)0 aEncyrtidae of the Marquesas and Society Islands Hymenoptera Chal  a215-2300 v163 aThe encyrtid fauna of the Marquesas and Society Islands has not been considered previously, so far as I know. The material for the present report was collected mainly by E.P Mumford and A.M. Adamson in the years 1928, 1929, and 1930, and was sent to me for study by Mr. Mumford. The entire collection, including the types of new species, is stored in B.P. Bishop Museum. The number of species recorded here, 12 for the Marquesas and five for the Society Islands, is not great, yet the material studied probably represents a fair sample of the fauna of these islands. More intensive collecting perhaps would do little more than disclose additional species of Anagyrus, which is the dominant endemic genus. Another endemic group is represented by a species of Leptomastix, and it is possible that Eutrichosomella insularis Timberlake and Mesencyrtus insularis Timberlake are also endemic species. The two species of Encyrtus, Pauridia peregrina Timberlake and Tachinaephagus zelandicus Ashmead, are certainly intrusive elements of the fauna, introduced through the agency of man and probably in recent years. The same is also almost certainly true for Ooencyrtus sphingidarum Timberlake, which is parasitic in the eggs of an introduced sphingid. Of the 14 species of Encyrtidae known from the two groups of islands, ten are parasitic in species of Coccidae, one in puparia of various muscoid Diptera, and one in sphingid eggs. The habits of Eutrichosomella and Mesencyrtus are of course quite unknown. The species of Anagyrus and Leptomastix, and Pauridia attack species of mealybugs (Pseudococcus and allies), and the hosts of Anagyrus and Leptomastix must form an endemic element of the fauna. The two species of Encyrtus attack scale insects of the genus Saissetia. 10aAnagyrus10abiology10aCHALCIDOIDEA10adistribution10aEncyrtidae10aEncyrtus10aEutrichosomella10aFrench Polynesia10aHYMENOPTERA10akeys10aLeptomastix10aMarquesas10aMesencyrtus10aOoencyrtus10aPacific Insects10aPauridia10aSociety Islands10aTachinaephagus1 aTimberlake, P., H.  uhttps://pacleps.myspecies.info/node/237