Despite a proliferation of regional faunistic treatments throughout North America in recent years, knowledge of the Odonata fauna of Missouri has lagged behind that of other midwestern states. Samples of larval Odonata were collected from 105 ponds in the Prairie Region of Missouri over three sampling periods: Fall 1998, Spring 1999, and Summer 1999. Some ponds were sampled during more than one sampling period, resulting in a total of 117 unique pond and sampling period combinations. Sites were selected from Missouri Department of Conservation owned lands and the University of Missouri owned Baskett Wildlife Area. Within each pond, sampling was conducted separately in each distinct vegetational mesohabitat. Supplemental rearing of difficult or uncommon taxa was carried out in in the laboratory.

More than 30,000 specimens, representing 51 species, 22 genera, and 6 families of larval Odonata were collected from ponds in the Prairie Region of Missouri. Overall, the ponds of the Prairie Region supported a generalized Odonata community, with a relatively small number of species being found in a large number of ponds. Presented here is a faunistic inventory of the larval Odonata of ponds in the Prairie Region of Missouri, with mesohabitat associations and a taxonomic key to suborders, families, genera, and species known or expected to occur there.

The 224 types of species of Tenebrionidae and Perimylopidae (Coleoptera) housed in the collection of the Entomology Department of Museo de La Plata up until December 2008 were examined and listed; 96 names are recorded, 39 of them (41 percent) are represented by name bearing types (“primary” types). These 224 types belong to 85 species and 9 subespecies of Tenebrionidae assigned to the following subfamilies: Diaperinae (3 species, 3 types), Lagriinae (4 species, 9 types), Pimeliinae (53 species, 1 subspecies, 128 types), Stenochiinae (7 species, 10 types) and Tenebrioninae (18 species, 8 subspecies, 72 types), and 2 types belonging to 2 species of Perimylopidae. Species and subespecies herein treated were described by Berg (23), Burmeister (1), Bruch (1), Fairmaire (8), Flores & Carrara (1), Flores & Roig-Juñent (1), Flores & Vidal (2), Freude (2), Kulzer (27), Molinari (7), Müller (2), Peña (14), Peña & Barría (2), Pic (3), Steinheil (1) and Viana (1). Complete information is given for each type, including reference to original description, and label data. Two lists were added in order to support future research: one for specimens labelled as types but not found in the bibliography and seemingly not published and another for specimens labelled as types but not included in the original series.

A rich and interesting material collected from Turkey and the neighbouring countries including the Middle East has been evaluated. The material consists of the historical and unidentified specimens mainly in the Naturhistorisches Musem Wien, the Natural History Museum London and the specimens recently collected and preserved in the Abant Izzet Baysal Üniversitesi Entomoloji Müzesi. Eight genera and 106 species and subspecies are listed The Isophya species are included into 7, the Poecilimon species are included into 16 species groups. The relationships of the species and the species groups are proposed as phylogenetic trees in writing format. Three distinct clades of the species groups of Poecilimon are separated and discussed their taxonomic positions. The genus Poecilimonella Uvarov, 1921 is included to the genus Poecilimon Fischer, 1853 and the species Poecilimon richteri Ramme, 1933 is synonymized with Poecilimon similis Retowski, 1899. Twelve new species and subspecies, Isophya hitit, I. sureyai amazonae, I. artvin, Poecilimon inopinatus, P. ferwillemsei, P. solus, P. obtusicercus kasnak, P. iucundus aequocercus, P. longicercus, P. similis proximus, P. diversus, P. Istanbul, are described. The females of 3 taxa, Poecilimon obtusicercus obtusicercus Heller et al., Poecilimon xenocercus Karabag and Poecilimon concinnus Brunner are described for the first time. Poecilimon concinnus Brunner, 1878 has been rediscovered since its description. The following 12 taxa are proposed in subspecies level: Isophya sureyai sureyai Ramme, I. stenocauda stenocauda Ramme, I. stenocauda obenbergeri Maran, I. anatolica anatolica Ramme, I. anatolica pentheri Ramme; Poecilimon obtusicercus obtusicercus Heller et al., P. adentatus adentatus Ramme, P. adentatus uvarovi Ramme, P. celebi celebi Karabag, P. celebi azdavayi Ünal, P. celebi tevfikarabagi Ünal and P. iucundus iucundus Ünal. The lectotypes for 8 species, Isophya amplipennis Brunner, I. savignyi Brunner, I. major Brunner, I. rectipennis Brunner, Poecilimon pergamicus Brunner, P. hamatus Brunner, P. unispinosus Brunner, P. zonatus I. Bolivar, are designated. Poecilimon cognatus (Fieber, 1853) is proposed as nomen novum. The determined congeneric partners of the species and subspecies are given. Five speciation stages which determine the taxonomic position for the taxa of Isophya and Poecilimon are designated. In addition 147 figures and a distributional map for the new taxa are provided.

A new species of flat-headed mayflies (Heptageniidae) is described as Maccaffertium wudigeum McCafferty and Lenat, n. sp. The species is based on larvae taken from western North Carolina. It is morphologically most similar to some M. mediopunctatum (McDunnough) larvae, but does not possess any of the distinguishing markings associated with the latter and also differs from it in habitat.

One new species of the planthopper genus Epora Walker (Hemiptera: Fulgoromorpha: Tropiduchidae), E. bilemisca sp. nov. (southern China: Hainan) is described and illustrated. A key to the known species of the genus from China is also provided. The types are deposited in the Entomological Museum, Northwest A & F University, Yangling, Shaanxi Province, China (NWAFU).

The genus Martintella Artigas, 1996, is recorded from the islands of Tobago and Trinidad for the first time. M. elliptica sp. nov from Tobago and Trinidad is described and illustrated. M. elliptica is compared to M. lestes (Williston).