Parasitism Rate of Egg Parasitoid Anastatus orientalis (Hymenoptera: Eupelmidae) on Lycorma delicatula (Hemiptera: Fulgoridae) in China

Abstract

Anastatus orientalis Yang et Gibson(Hymenoptera : Eupelmidae) is the egg parasitoid of lantern-fly Lycorma delicatula. The natural parasitism showed that: (1)the highest parasitism rate of egg masses was 68.96% in Yantai Shandong; (2)the highest parasitism rate of eggs was 32.98% in Haidian Beijing; (3)the eggs of parasitoids hatched and emerged earliest in Yangling Shaanxi; emergence time of different populations in Yantai, Guangang Tianjin, Qinhuangdao Hebei and Haidian was similar; (4) the sex ratios were various among the populations ranging from 1.92 to 1.94; (5) parasitism rates of egg masses on Populus sp., Salix sp. and Toona sinensis were not significantly different, the highest parasitism rate of egg masses was 64.3% on T. sinensis, and the lowest rate was 27.4% on Ailanthus altissima; (6)parasitism rates of eggs on Populus sp., Salix sp., T. sinensis and A. altissima were not significantly different, about 30% averagely.

A modified DNA barcode approach to define trophic interactions between native and exotic pentatomids and their parasitoids

“…Several hymenopteran egg parasitoids are known to attack Pentatomidae, including Scelionidae ( Gryon Haliday, Psix Kozlov & Lê, Telenomus Haliday, Trissolcus Ashmead), Eupelmidae ( Anastatus Motschulsky) and Encyrtidae ( Ooencyrtus Ashmead) (Orr, ). The eupelmids and encyrtids associated with pentatomids are generalists and include members that are facultative hyperparasitoids (Choi et al., ; Cusumano, Peri, Amodeo, McNeil, & Colazza, ; Roversi et al., ). In contrast, scelionids in the genus Trissolcus and several species in the genus Telenomus are strictly associated with Pentatomidae, cause high levels of parasitism, and are used as biological control agents for native and invasive pentatomid species (Orr, ; Orr, Russin, Boethel, & Jones, ; Yeargan, ).…”

Occurrence, Seasonal Abundance, and Superparasitism of Ooencyrtus kuvanae (Hymenoptera: Encyrtidae) as an Egg Parasitoid of the Spotted Lanternfly (Lycorma delicatula) in North America

“…The natural enemies of L. delicatula in its native range include Anastatus orientalis Yang and Choi (Hymenoptera: Eupelmidae), a solitary egg parasitoid [46,47]; and Dryinus browni Ashmead (Hymenoptera: Dryinidae), a solitary nymphal ectoparasitoid [48]. Field parasitism in China has ranged from 30.5% to 69.0% (by egg mass) and 33.0% to 40.2% (by egg) for An.…”

“…Field parasitism in China has ranged from 30.5% to 69.0% (by egg mass) and 33.0% to 40.2% (by egg) for An. orientalis [46,47] and from 12.5% to 43.5% for D. browni, respectively [48]. An unidentified Anastatus species, possibly An.…”

Relating antennal sensilla diversity and possible species behaviour in the planthopper pest Lycorma delicatula (Hemiptera: Fulgoromorpha: Fulgoridae)

“…Instars 1 through 3 may feed upon many different plant species but the fourth instar strongly prefers Ailanthus [ 12 ]. Intraspecific competition between nymphs [ 13 ] and also adult females for feeding sites occurs (E. Smyers pers. comm.)…”