A list of Cicadellidae (leafhoppers) of Iran is provided based primarily on literature records from 1902 to the present. In total 390 species are recorded from 13 subfamilies. Ninety three of the recorded species are considered to be endemic to Iran. The current accepted name is given for each species together with synonyms and literature citations relating to Iran. Selenocephalus darei is recognized as a published misspelling for Selenocephalus dareicus Dlabola, 1981. There is no evidence that the Nearctic species Empoasca fabae (Harris, 1841) and Erythroneura comes (Say, 1825) have been found in Iran; previous records appear to have been based on misidentifications. A brief distribution of species within Iran is provided.
A list of Hemiptera Fulgoromorpha (planthoppers) of Iran is provided based primarily on literature records from 1902 to the present. In total 15 families and 235 species are recorded, with taxonomic details. Distribution data in Iran are given. Iranissus ephedinus Dlabola, 1980 is transferred from Issidae to Nogodinidae. To resolve nomenclatural difficulty the following new combinations in Issidae are given: Iranodus dumetorus (Dlabola, 1981), Iranodus khatunus (Dlabola, 1981) and Iranodus repandus (Dlabola, 1981). Due to published generic synonomy the following are new combinations: Duilius seticulosus (Lethierry, 1874), D. tamaricis (Puton & Lethierry, 1887), D. tamaricicola (Dubovsky, 1966) D. v-atrum (Dlabola, 1985).
An illustrated dichotomous identification key for a total of 54 Auchenorrhyncha species of Iran is presented. The studied species have been recorded as pests and vectors of diseases to fruit trees. Twenty nine records were contributed to Iranian orchards and 25 of which were from other parts of the world. Hence, the latter group can be considered as potential pests and vectors in Iran. Reviewing the published information on the former group suggests 12 species as pests (4, 2 and 6 species with significant, minor, and unknown recorded economic damage levels, respectively). The pest status of 14 recorded pest species were quite doubtful and 3 of them could not be present in Iran due to the lack of evidence or their limited distribution in other parts of the world. The 4 species which were recognized as well known and significantly important pests belonged to the families: Tropiduchidae (Ommatissus lybicus Bergevin, 1930), Cicadidae (Cicadatra alhageos (Kolenati, 1857)), and Cicadellidae (Hishimonus phycitis (Distant, 1908) and Neoaliturus haematoceps (Mulstant et Rey, 1855)). One species Orosanga japonicus is recording for the first time from Iran and added to the key.
Results of laboratory experiments are reported that tested the effects of five chitin synthesis inhibitors, diflubenzuron, cyromazine, lufenuron, hexaflumuron and triflumuron, on 2nd instars of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Crysomelidae), originally collected from potato fields of Bostanabaad, a town 66 km southeast of Tabriz, Iran. In bioassays, the larvae were fed potato leaves dipped in aqueous solutions containing chitin synthesis inhibitors. The mortalities and abnormalities of the treated larvae were recorded 72 hours after treatments. LC50 values were 58.6, 69.6, 27.3, 0.79 and 81.4 mg ai/L for diflubenzuron, cyromazine, lufenuron, hexaflumuron and triflumuron, respectively. Compared with phosalone, which is one of the common insecticides used for controlling this pest in Iran, lufenuron and hexaflumuron seem to be much more potent, and if they perform equally well in the field, they would be suitable candidates to be considered as reduced risk insecticides in management programs for L. decemlineata due to much wider margin of safety for mammals and considerably fewer undesirable environmental side effects.