We present an analysis of the calling songs of species Metrioptera bicolor isolated from different locations within Northeast China illustrating the intraspecies calling song divergence. Recording and analysis of the male calling songs of some acoustic characters were performed and five morphological traits of M. bicolor were examined under stereoscope microscope and scanning electron microscope. A cluster analysis was made based on the song properties and the morphology of stridulatory organs. All the song traits, except the pulse number per pulse group, differ distinctly within species collected at different localities, while the pulse number of each pulse group and all the five morphological characters were consistent across locations. The cluster analysis showed that M. bicolor collected from eight sampling sites grouped into two branches and were consistent with geographical distribution.

The dialect phenomenon exists in insects and the divergence of acoustic signals occurs in a small-scale geographical region and may be an early stage of speciation. We inferred that the divergence of intraspecific acoustic signals on a small-scale may result from different habitats. This study provides evidence for insect acoustic signal divergence, speciation, and insect acoustic signal evolution.

A new genus, Hilloxya Kumar & Chandra, gen. nov. (Type species: Hilloxya elongatus Kumar & Chandra, sp. nov.) is described and illustrated from the Indian Himalayan region. The new genus is characterised by its cylindrical body shape and extremely elongated cerci.

Hexacentrus expansusWang & Shi, 2005 and one new species Euconocephalus budaunensis sp. nov. are reported for the first time from India. A description of E. budaunensis and a key to Indian species of genus Euconocephalus and morphometric ranges have also been provided.

Melanoplus punctulatus (Scudder) is a woodland-associated grasshopper that has been mostly recorded from the eastern U.S. and adjacent Canada. Prior to the past decade, the known westernmost occurrence of this species extended into the eastern third of South Dakota, Nebraska, Kansas, Oklahoma, and Texas. In the past decade M. punctulatus has been found at several sites in the Pine Ridge area of northwestern Nebraska. In 2018, a specimen of M. punctulatus was found at Devils Tower in northeastern Wyoming, which extends the known range of this species by 250 km and represents a state record for Wyoming. This range extension supports the idea that this is a species that may be more widespread than is realized, but is often overlooked due to its arboreal habits and cryptic coloration.

The scope of this study is to evaluate the faunistic, ecological and zoogeographical composition of the subfamily Steninae (Coleoptera: Staphylinidae) of the Central Anatolian Region of Turkey. Thirty-eight species, belonging to two genera, were detected by field studies between 2009-2011 in the Central Anatolian Region. It is concluded that among these, 12 species represent a first record for Central Anatolian Region and one species (Stenus distortus Assing, 2006) is endemic for Turkey. In previous studies, five species belonging to Stenus were recorded from Turkey, however, it was not clear that which provinces they were collected from. With this study, detailed localities are provided (Stenus ater Mannerheim, 1830, S. atratulus Erichson, 1839, S. carbonarius Gyllenhal, 1827, S. crassus Stephens, 1833, S. formicetorum Mannerheim, 1843).

The occurrence of Charagmus variegatus in the East Mediterranean and Turkey is confirmed. Six adult individuals were obtained by sweeping several plants including Polygonum equisetiforme Sm. and Ononix sp. at the eastern Mediterranean coast of Turkey. Morphological characters of C. variegatus are studied, including female terminalia segments and genitalia that are illustrated. The bursa copulatrix is an unusual sclerotized structure in this species. Comparative diagnostic and morphological characters for differentiating C. variegatus and C. cachectus are also presented.

Previously 19 species of Chrysotus were reported from Palaearctic China in 2009, 6 new species have been described since then. In this paper, the species from Palaearctic China are reviewed. Two new species are described as new to science: Chrysotus squamae Liu & Yang, sp. nov. and Chrysotus unumprojicienus Liu & Yang, sp. nov. A key to the species of Chrysotus from Palaearctic China is provided.

The New World carpenter ant Camponotus novogranadensis Mayr has a broad, apparently continuous range, extending from subtropical Brazil (29.8°S) to central Mexico (∼23.7°N). In 2012, a non-native population of C. novogranadensis was discovered in southwestern Florida. Here, I examine the ecology and geographic distribution of C. novogranadensis, and report additional records of C. novogranadensis in Florida.

I documented C. novogranadensis at five sites in southwestern Florida from Estero to Fort Myers in Lee County (26.4°—26.5°N) and at nine sites in southeastern Florida ranging Delray Beach to Boynton Beach in Palm Beach County (26.4°—26.5°N). Although I found two well-established populations of C. novogranadensis at the same latitudes in southwestern and southeastern Florida, I did not find this species anywhere in the >150 km between. It is likely that C. novogranadensis will continue to spread in Florida, possibly impacting native ants.

The tribe Mecysolobini Reitter, 1913, the genus Alcidodes G.A.K. Marshall, 1939 and the species Alcidodes karelinii (Boheman, 1844) are new to fauna of Turkey. The species is redescribed based on diagnostic morphological characters which are presented with their digital images. Genital structures with abdominal terminalia segments are studied and depicted for the first time. Geographical data with new locations and a distribution map are provided. The host plant of A. karelinii is Convolvulus arvensis L., confirmed based on rearing samples from seed capsules.

Fleas are ectoparasitic insects of many terrestrial mammals and birds. To date, a limited number of parasitological studies in Turkey have focused on fleas; and therefore, distributions and host associations of many flea species have been still poorly known. In the present study, we collected a small number (n= 678, 409 females, 269 males) of fleas from some wild animals in Sivas province of Turkey. Fleas were identified as Archaeopsylla erinacei erinacei (Boucheé 1835), Ctenocephalides canis (Curtis 1826), Leptopsylla (Leptopsylla) taschenbergi taschenbergi (Wagner 1898), Nosopsyllus (Nosopsyllus) fasciatus (Bosc 1800), Chaetopsylla (Arctopsylla) hyaenae (Kolenati 1846), Chaetopsylla (Chaetopsylla) trichosa Kohaut 1903 and Ischnopsyllus (Ischnopsyllus) simplex Rothschild 1906. Of them, C. (A.) hyaenae and I. (I.) simplex were reported for the first time in Turkey. In the present study, we also reported some new flea-host associations for Turkey.

Two new species of Conocephalus are described from India, namely C. (Anisoptera) hilli sp. nov. and C. (Anisoptera) brevis sp. nov. A new record and redescription of Conocephalus (Chloroxiphidion) laetus (Redtenbacher, 1891) have been provided along with a key to Indian subgenera of Conocephalus. A key to Indian species of Concephalus (Aniosptera) have also been given.