Abstract The brown marmorated stink bug Halyomorpha halys is a polyphagous insect, which has devastating impact on agricultural production in many countries. alteration of symbiont vertical transmission, by removing symbionts from eggs (symbiotic control), been recently introduced control programmes against this insect. A major advantage strategy the compatibility with natural enemies, since it...

Hymenoptera parasitoids of Megaloptera, particularly the family Corydalidae, are rarely found. Ooencyrtus Ashmead is a genus that attacks eggs of many orders of Insecta, including Megaloptera. Here, three species, O. longicauda sp. n., O. noyesi sp. n. and O. protohermeasis sp. n. are described. Two of them, O. longicauda and O. protohermesis were reared from eggs of corydalids (Megaloptera: Co...

Spotted Lanternfly, Lycorma delicatula (White) is a recently introduced pest of Tree-of-Heaven, Ailanthus altissima (Mill.) Swingle in North America. Natural enemy surveys for this pest in Pennsylvania in 2016 recovered an encyrtid egg parasitoid from both field collections and laboratory rearing of field-collected L. delicatula egg masses. Both molecular and morphological data confirm that the...

Two new species, Ooencyrtus alrake Hayat, sp. nov. and Syrphophagus wayanadensis Hayat, sp. nov. (Hymenoptera: Chalcidoidea: Encyrtidae), are described from material collected in Kerala State (India) from Trioza jambolanae Crawford (Hemiptera: Psylloidea: Triozidae), a leaf gall-inducer on species of Syzygium (Myrtaceae). Two species, Psyllaephagus garuga S. Singh and P. phacopteron S. Singh, b...

This is the first major contribution to the fauna of the family Encyrtidae (Hymenoptera: Chalcidoidea) of the Kingdom of Saudi Arabia. The following new genus and 15 new species are described: Anagyrus azolus Hayat, sp. nov., A. raidahensis Hayat, sp. nov., Arabencyrtus qahtanii Hayat, gen. et sp. nov., Cerchysiella arabia Hayat, sp. nov., C. azeeza Hayat, sp. nov., Cheiloneurus arabiacus Hayat...

A new genus of Encyrtidae (Hymenoptera: Chalcidoidea), Noyesencyrtus Singh gen. nov. (type species N. brachyoculus Singh sp. nov.), associated with insects inhabiting fruiting bodies of wood-decaying fungi, and two new species, Psyllaephagus kundapurensis Singh sp. nov. and Ooencyrtus hayatii Singh sp. nov., are described from the Western Ghats of Karnataka, India.

Four new brachypterous species of Encyrtidae (Hymenoptera: Chalcidoidea) are described. These are: Astymachus eximius Hayat, sp. nov., Ixodiphagus aethes Hayat, sp. nov., Monstranusia brachyptera Hayat, sp. nov., Ooencyrtus notialis Hayat, sp. nov. Brachyptery in the genera Astymachus Howard and Monstranusia Trjapitzin is reported for the first time.