The first record of Corythauma ayyari (Drake, 1933) for Egypt is reported. Information on the known distribution of this invasive species in the Mediterranean Region is summarized and discussed.

This paper is focus on Megalonotus praetextatus (Herrich-Schaeffer, 1835). The new record and distributional data are given from northern Anatolia (Gerede district of Bolu province) for this species.

This study was performed in the period March-September in the years 2013 and 2014 in various freshwater habitats in Edirne of Thrace region in order to determine the aquatic and semi-aquatic Heteroptera fauna of the city. As a result 28 species belonging to 14 families from Gerromorpha and Nepomorpha were identified. Habitat and distribution informations of the species were given.

159 Coreoidea specimens were collected for identification during the expedition which made between June-August 2011-2012 in Yahyali district (Kayseri province). The result of the identification process; 16 genera and 24 species were found belonging to 4 families. Information about the location of the studied area and Heteroptera fauna were reported in the search. Examination materials were arranged for each species with the necessary collecting data. The distribution of species were also considered in Turkey. In the results of the search references, all of 24 species are new record for Coreoidea fauna of Yahyali.

In this paper, new distribution record of the invasive species Zelus renardii (Kolenati, 1857) in Turkey is given after four years of its introduction to Turkey. After the first records of Zelus renardii (Kolenati, 1857) from Izmir and Istanbul provinces in Turkey in 2016 (Çerçi & Koçak, 2016), the species has been recorded from Ankara province (in central anatolia) as a first record in this study. With this new record, the distribution area also shows the eastward enlarging of the species in the Anatolian Peninsula.

Patapius spinosus (Rossi, 1790) is recorded for the first time from Eastern Anatolia (Turkey). This species is widespread from Mediterranean to Central Asia, but in Turkey it was known until now only from the southern of Anatolia. This record is the eastern- and northern most one for Turkey.

We represents Apterola lownii (Saunders, 1876) and Grypocoris melanopygus Horvàth, 1906 two species, found in Mardin, less known in photographic images. Grypocoris melanopygus Horvàth,1906 endemic to Turkey, shows a new color pattern.

This study, in which new records were given from Kosovo, was made on the basis of 28 specimens of 7 species of 7 genera in 4 families in the suborder Heteroptera (Hemiptera) in Kosovo. This seven species given in this study are; Lygaeidae: Spilostethus pandurus (Scopoli, 1763), Gastrodes grossipes (De Geer, 1773) and Scolopostethus grandis (Horvath, 1880); Rhopalidae: Stictopleurus abutilon (Rossi ,1790); Coreidae: Enoplops disciger (Kolenati, 1845); Scutelleridae: Odontotarsus purpureolineatus (Rossi, 1790) and Eurygaster maura (Linnaeus, 1758). The examined material was collected during the field studies in Prizren, Peja, Shtime, Kacanik, Pristina, Dragas, Gjakova and Strpce in Kosovo between 2011-2012. The distribution of these species in Kosovo were shown on the map .

Heteroptera, the majority of which are terrestrial is a worldwide distributed group of insects inhabiting both terrestrial and aquatic habitats and has an important ecological role. The two infraorders, Gerromorpha and Nepomorpha, including the aquatic and semi-aquatic members of the suborder Heteroptera. The members of Hydrometridae family are one of the most distinctive heteropteran groups with their small stick-like insects with an elongate head and exceedingly slender legs. It has been reported 14 taxa from the infraordo Nepomorpha and Gerromorpha in Kastamonu so far. In this study, a new faunistic record is shown for Kastamonu. Also, morphological diagnosis, habitat, distribution in Turkey and Palearctic data of Hydrometra stagnorum (Linnaeus, 1758) (Hemiptera: Heteroptera: Hydrometridae) are given.

In this study, the morphology and histology of the gastric cecum of Centrocoris variegatus were examined with light and scanning electron microscopy (SEM). C. variegatus is a phytophagous species that feeds on the various plants in agricultural areas and harm them. The digestive tract of C. variegatus is divided into three different regions: Foregut, midgut, and hindgut. The gastric caecum is located in the posterior end of the midgut. The gastric caecum of C. variegatus was compared to the other species belonging to Hemiptera order and other insect groups. Obtained similarities and differences in both morphological and histological features were revealed.