This paper provides faunistic data for 27 species of Cryptinae in Iran, of which 12 species and three genera, Buathra Cameron, Myrmeleonostenus Uchida and Glyphicnemis Foerster, are newly recorded from Iran. Previously recorded species with related references are also included. Distributional map is given for all species of Cryptinae. This study increases the number of known species of Iranian Cryptinae to 55.

The present study provides information about the Cryptinae and Ichneumoninae (Hymenoptera: Ichneumonidae) species collected from Kerman province, during 2013. A total of 12 species belonging to 10 genera of these two subfamilies were collected and identified. They were Cryptus inculcator (Linnaeus, 1758); Dichrogaster longicaudata (Thomson, 1884); Dichrogaster saharator (Aubert, 1964) and Mesostenus albinotatus Gravenhorst, 1829 (subfamily Cryptinae); Anisobas cingulatellus Horstmann, 1997; Apaeleticus bellicosus Wesmeal, 1845; Barichneumon derogator (Wesmeal, 1845); Ctenichneumon devylderi (Holmgren, 1871); Ctenichneumon edictorius (Linnaeus, 1758); Diadromus collaris (Gravenhorst, 1829); Heterischnus filiformis (Gravenhorst, 1829) and Lysibia nana (Gravenhorst, 1829) (subfamily Ichneumoninae) of which the genus Apaeleticus Wesmael and three species including M. albinotatus, A. bellicosus and B. derogator are new records for the fauna of Iran. All species are new for the fauna of Kerman province.

A checklist of Iranian Cryptinae (Hymenoptera: Ichneumonidae) for all species recorded of Iran is given. The list is based on detailed studies of all available published data and some new collected samples. Until now 123 species in 42 genera belonging to 3 tribes of this subfamily have been known from Iran. Cryptinae is the most species-rich subfamilies of Ichneumonidae, and has a worldwide distribution. Two genera, Goryphus Holmgren, 1868 and Thaumatogelis Schwarz, 1995 were recorded for the first time for the Iranian fauna. Many parts of the country are still studied insufficiently or even not studied at all, so we suppose that the total species richness in Iran is essentially higher.

The parasitoid Gelis caudator of the subfamily Cryptinae (family Ichneumonidae) is here recorded for the first time from Iran. The adult specimens of G. caudator were collected under the bark of host tree, Juniperus excelsa, where the overwintering larvae and pupae of the pest Argyresthis sp. (Lepidoptera, Yponomeutidae) were occurred. Some specimens emerged from the pupae of the host.

Gelis declivis (Hym.: Ichneumonidae, Cryptinae) is newly reported from three provinces of Iran (Guilan, Alborz and Fars). Diagnostic morphological characters and information of the known distribution of G. declivis are provided.

In order to study the fauna of ichneumonid wasps (Hym., Ichneumonidae), a survey was carried out during 2010-2013 in various localities in Khorasan Razavi province. Samples were collected using sweeping net by irregular patterns on the common field crops and in the orchards. 234 specimens, in total were collected and identified. They were consisting 26 species belong 25 genera of 12 subfamilies. Among them, 16 species are new for Khorasan fauna including Anomalon cruentatum (Geoffroy, 1785) and Barylypa propugnator (Geoffroy, 1785) (Anomaloninae); Exetastes syriacus Schmiedeknecht, 1910 and Lissonota pleuralis (Brischke, 1880) (Banchinae); Diadegma semiclausum (Hellén, 1949) and Sinophorus xanthostomus (Gravenhorst, 1829) (Campopleginae); Dichrogaster longicaudata (Thomson, 1884), Dichrogaster saharator (Aubert, 1964) and Trychosis legator (Thunberg, 1822) (Cryptinae); Enizemum ornatum (Gravenhorst, 1829), Homotropus signatus (Gravenhorst, 1829) and Promethes sulcator (Gravenhorst, 1829) (Diplazontinae); Diadromus collaris (Gravenhorst, 1829), Dicaelotus pumilus (Gravenhorst, 1829) and Ichneumon proletarius Wesmael, 1848 (Ichneumoninae); Orthocentrus strigatus Holmgren, 1858 (Orthocentrinae). Three species including Exetastes syriacus, Lissonota pleuralis and Dicaelotus pumilus are new records for the fauna of Iran.

A survey was performed to investigate the fauna of Ichneumonidae in Fars province during 2012 to 2013. Totally, 14 species belonging to 13 genera and six subfamilies were collected and identified including: Exetastes adpressorius (Thunberg, 1822) (Banchinae); Diadegma semiclausum (Hellén, 1949) (Campopleginae); Cryptus inculcator (Linnaeus, 1758); Dichrogaster saharator (Aubert, 1964) (Cryptinae); Diplazon laetatorius (Fabricius, 1781); Enizemum ornatum (Gravenhorst, 1829); Homotropus nigritarsus (Gravenhorst, 1829); Homotropus signatus (Gravenhorst, 1829) (Diplazontinae); Colpognathus celerator (Gravenhorst, 1807); Diadromus collaris (Gravenhorst, 1829); Ichneumon sarcitorius Linnaeus, 1758; Virgichneumon callicerus (Gravenhorst, 1820) (Ichneumoninae); Orthocentrus asper (Gravenhorst, 1829); Picrostigeus setiger (Brischke, 1871) (Orthocentrinae), of which Exetastes adpressorius and Picrostigeus setiger are newly recorded for the fauna of Iran. In addition the male of the latter species is recorded for the first time and described. All species except Dichrogaster saharator are new for Fars province.

In this study, the taxonomy and species diversity of parasitois wasps of Pimpliformes and Ichneumoniformes (Hymenoptera: Ichneumonidae) were investigated in the some areas of Yazd province (Zarkoeih, Manshd, Bahabad, Dehert and Totiabad) in 2015. The specimens were collected using Malaise traps. Two Malaise traps were placed in each locality in a distance of about 50-100 meters from April to September. Specimens were extracted from the Malaise traps once in every two weeks. In the study of species diversity, species Mesoleptus sp. Of Cryptinae (Ichneumoniformes) family with 24 individuals (%13/28) had the highest frequency, and the Manshad region had the greatest diversity. A total, Pimpliformes group 13 species belonged to 9 genera and three subfamilies, and Ichneumoniformes group 16 species belonged to 12 genera and two subfamilies were collected and identified. Of these, all species, except the two species of Diplazon laetatorius (Fabricius, 1781) and Cryptus nr.inculcator (Linnaeus, 1758), in the Yazd province are new.

Species diversity of Ichneumonid wasps (Hymenoptera, Ichneumonoidea, Ichneumonidae) was studied in some regions of Tehran province. In total 17 species within eight subfamilies, Anomaloninae Viereck, 1918, Banchinae Wesmael, 1845, Campopleginae Förster, 1869, Cremastinae Förster, 1869, Cryptinae Kirby, 1837, Ichneumoninae Latreille, 1802, Pimplinae Wesmael, 1845, and Tryphoninae Shuckard, 1840 were collected and identified. All the species are related to 14 genera including, Barylypa Förster, 1869, Lissonota Gravenhorst 1829, Charops Holmgren, 1859, Dusona Cameron 1901, Pristomerus Curtis, 1836, Temelucha Meyrick, 1909, Cryptus Fabricius, 1804, Glyphicnemis Förster, 1869, Ischnus Gravenhorst, 1829, Meringopus (Förster, 1868), Ichneumon Linnaeus, 1758, Virgichneumon Heinrich, 1977, Itoplectis Förster 1869, and Tryphon Fallén, 1813. Three species, Charops cantator (De Geer, 1778), Dusona contumax Förster, 1868 and Temelucha genalis (Szépligeti, 1899) are new records for the fauna of Iran. In this research, seven species of moth (Lepidoptera) related to four families Lasiocampidae, Tortricidae, Noctuidae and Nymphalidae were determined as the hosts of the collected ichneumonids.

The fauna of Ichneumonidae in the upper half of Kerman province was surveyed. Six Malaise traps were installed in three localities, Anar, Shahr-e-Babak and Mahan regions during 2012. The collecting pot of each trap was emptied by an interval of two-four weeks. A total of nine species belonging to four subfamilies, Campopleginae, Cryptinae, Ichneumoninae and Tryphoninae, were identified. Cymodusa rufiventris Dbar, 1985 (Campopleginae) and Netelia (Paropheltes) maculiventris (Kokujev, 1915) (Tryphoninae) are reported for the first time from Iran. Six species are new records for Kerman province. Diagnostic morphological characters of the newly reported species are provided.