The aphid parasitoid Lysiphlebus fabarum is suspected to form distinct, host-associated lineages and exhibits poorly understood variation in reproductive mode including thelytokous and arrhenotokous populations. As a tool to study these issues, we developed 11 polymorphic microsatellite markers. The observed number of alleles ranged from two to 35, and the observed heterozygosity ranged from 0....

all wasp species in the genus lysiphlebus fã¶rster are solitary endoparasitoids of aphids andconsidered a taxonomically difficult group. in this study a part of coi and its2 was used to distinguishtwo closely related species l. fabarum (marshall) and l. confusus tremblay & eady in iran. thesequencing with a similarity about 99.5% showed coi's inability to separate the species l. fabarum an...

Here we present additional data on the Aphidiinae fauna of Kyrgyzstan. We identified 18 species. One species new to science ( Trioxys depressus sp. nov. ) is described, while 11 are reported for first time: Aphidius avenae Haliday, A. ervi matricariae salicis urticae Ephedrus cerasicola Starý, E. niger Gautier, Bonnamour & Gaumont, Lysiphlebus cardui (Marshall), L. confusus Tremblay Ead...

Host defenses against parasites do not come for free. The evolution of increased resistance can be constrained by constitutive costs associated with possessing defense mechanisms, and by induced costs of deploying them. These two types of costs are typically considered with respect to resistance as a genetically determined trait, but they may also apply to resistance provided by 'helpers' such ...

A review of species of the genus Neopsocopsis Badonnel, 1936 is presented. Four species are redescribed, viz. Neopsocopsis hirticornis (Reuter, 1893), Neopsocopsis quinquedentata (Li & Yang, 1988), Neopsocopsis profunda (Li, 1995), and Neopsocopsis flavida (Li, 1989), as well as the description of one new species, Neopsocopsis convexasp. n. Seven new synonymies are proposed as follows: Pentabla...

Abstract The negative impact of pests on world agriculture is estimated at 1.4 trillion dollars, which 5% the global gross domestic product. In order to save crops lost due agricultural in world, it urgent importance develop effective and fundamentally based control measures against them. this research, main studied were Aphis craccovora Koch; gossypii Glow; Brevicoryne brassicae, Lysiphlebus f...