Stridulating Species of Aphids of the Genus (Hemiptera: Aphididae) with Descriptions of a New Species from Iran.

In this paper, we present a review of stridulating species of aphids of the Macrosiphini genus (Hemiptera, Aphididae) and include 13 species. The most characteristic feature of the reviewed species is the presence of unusual aphids' peg-like sensilla distributed on the hind tibia, which are rubbed against the surface of the siphunculi. A new aphid species-, living on and (Campanulaceae) in Iran-is described and illustrated based on the apterous and alate viviparous females.

Macrosiphoniella (Asterobium) herczeki sp. nov.a new aphid species from Bulgaria (Hemiptera, Aphididae).

Here we present a description of a new aphid species from the subgenus Asterobium Hille Ris Lambers, 1938 of the genus Macrosiphoniella Del Guercio, 1911 in the tribe Macrosiphini Wilson, 1910 (Aphididae). The new speciesMacrosiphiniella (Asterobium) herczeki sp. nov.

Perianal Structures in Non-Myrmecophilous Aphids (Hemiptera, Aphididae).

Mutualistic relation with ants is one of the leading features of aphid ecology. For some aphid species, it is a crucial association enhancing their survival capability, while the life mode of some others is completely independent of ants. It was broadly accepted that during the evolution of aphids, the ones relying on ants developed special morphological adaptations for this mutualism, the so-called trophobiotic organ.

Comparative Studies of Perianal Structures in Myrmecophilous Aphids (Hemiptera, Aphididae).

There are three types of relationships between aphids and ants: non-myrmecophilous, obligatory and facultatively myrmecophilous. The degree of involvement in this mutualism is believed to be corelated with morphological adaptations of perianal structures. In this manuscript, we analyzed the differences of these structures in obligatorily (18 species) and facultatively (10 species) myrmecophilous aphids.

Microbiome of the Aphid Genus Börner (Hemiptera: Aphidinae) and Its Relation to Ant Attendance.

Among mutualistic relationships of aphids with other organisms, there are two that seem to be of major importance: trophobiosis with ants and endosymbiosis of bacteria. While the former is well studied, the latter is the subject of an increasing amount of research constantly revealing new aspects of this symbiosis. Here, we studied the possible influence of ant attendance on the composition of aphid microbiota on primary and secondary hosts exploited by the aphid genus .

Trophobiotic organ and perianal structures in aphid genus Stomaphis WALKER (Aphididae, Lachninae).

Stomaphis Walker is an obligatorily myrmecophilous, tree-trunk feeding aphid genus, having many peculiar features in its morphology. One poorly studied trait is its perianal anatomy, with suspected existence of trophobiotic organ and intriguing tubercles near abdominal segment VIII. Tubercles on rear end of abdomen in Stomaphis were considered to be marginal tubercles, structure typical of aphids.

Ant-induced evolutionary patterns in aphids.

This review investigates ant-aphid mutualism (trophobiosis), in particular focusing on evolutionary processes in aphids resulting from this interaction. This broad literature review allows us to revise existing views on certain aspects of this mutualism and provide the first timeline of its possible development over a geological timescale. We propose a new classification of ant-aphid mutualism with respect to its ecological characteristics and present new explanations of the development of certain morphological structures of aphids as resulting from adaptation to a trophobiotic relationship with ants.

Teratological cases of the antennae in the family Aradidae (Hemiptera: Heteroptera).

Teratological cases of the antennae in the family Aradidae (Hemiptera: Heteroptera) are widely described for the first time. Four hundred seventy-six specimens of flat bugs were studied, and antennal malformations were found in 14 of them (2.94%) (belonging to eight species and three subfamilies: Aradinae, Aneurinae and Mezirinae).