Dasysyrphus Enderlein (Diptera: Syrphidae) has posed taxonomic challenges to researchers in the past, primarily due to their lack of interspecific diagnostic characters. In the present study, DNA data (mitochondrial cytochrome c oxidase sub-unit I—COI) were combined with morphology to help delimit species. This led to two species being resurrected from synonymy (D. laticaudus and D. pacificus) ...

1- Insect Taxonomy Research Department, Iranian Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), Tehran, 19395–1454, Iran. , [email protected] 2- Syrphidae Foundation, Hof der Toekomst 48, 3823 HX Amersfoort, The Netherlands. 3- Canadian National Collection Insects, Arachnids Nematodes, Agriculture Agri-Food Canada, 960 Carling Avenue...

different species of syrphid flies are beneficial insects in nature and are important in agriculture. during a faunistic study on syrphid flies (dip.:syrphidae) on 2011 to 2012 of djolfa region (east azarbaijan province), one merodon (meigen, 1803) species was collected. they were identified as merodon latifemoris radenkovic, based on morphological characters as a new species from iran region. ...

A model was developed to estimate the effect of predation by Episyrphus balteatus larvae on aphid populations in fields of winter wheat. Feeding rate of syrphid larvae was estimated from experiments in field cages using a Holling type-III function. During larval development, syrphids consumed a maximum of 396 aphids, which is only half the potential feeding rate reported from laboratory experim...

during 2010–2011, a faunistic study of the family syrphidae was carried out in torbat heydarie, roshtkhar and khaf (razavi khorasan province), northeastern iran. among the collected specimens, we found two species, paragus gussakovskii bańkowska and platycheirus immarginatus zetterstedt which are new records for the fauna of iran.