Vladimir M. Gnezdilov

Modern classification and distribution of the family Issidae Spinola (Homoptera, Auchenorrhyncha: Fulgoroidea)

The modern classification of the family Issidae s. str. is presented according to which the family consists of 3 tribes: Issini, Hemisphaeriini, and Parahiraciini and comprises a total of 994 species and subspecies in 159 genera. The largest tribe, Issini, is distributed worldwide and comprises 129 genera with 755 species and subspecies. The tribes Hemisphaeriini and Parahiraciini are much smaller and mostly distributed in the Indo-Malayan Realm with some taxa also present in the Eastern Palaearctic and the Oceania. The tribe Hemisphaeriini consists of 15 genera with 187 species and subspecies while Parahiraciini includes 14 genera with 38 species. The Palaearctic and Indo-Malayan Realms have the richest faunas of Issidae. In contrast, Equatorial Africa has a very poor fauna of the family, whereas the Australian fauna is still almost undescribed. Chimetopon camerunensis Schmidt is recorded for the first time from Central African Republic and Gabon, and Sarima erythrocyclos Fennah, from Taveuni Island (Fiji).

A new subfamily of the planthopper family Ricaniidae Amyot et Serville (Homoptera, Fulgoroidea)

Pharsalinae subfam. n. is erected in the family Ricaniidae Amyot et Serville for two monotypical genera Pharsalus Melichar, 1906 and Silvanana Metcalf, 1947 distributed in South America. The members of the new subfamily are characterized by the submacroptery, simple radius and anterior cubitus of the fore wing, the style capitulum bearing a lateral tooth, and the subrectangular (in lateral view) gonoplacs with partly separated third lobes and without marginal teeth. Pharsalus repandus Melichar, 1906 is recorded from Uruguay for the first time.

Review of the Family Issidae (Hemiptera: Fulgoromorpha) in Vietnam with Description of a New Species

Abstract. A list of 18 species of the planthopper family Issidae known from Vietnam is given. Pseudochoutagus rubens sp. nov. is described from Northern Vietnam. New records for Macrodaruma pertinax Fennah, 1978 and Euxaldar jehucal Fennah, 1978 are provided. Convergence in body shape for the issid genera Pseudochoutagus Che, Zhang et Wang, 2011 and Choutagus Zhang, Wang et Che, 2006 and for the genus Philagra Stål, 1863 (Aphrophoridae) is mentioned for the first time.

“Issidisation” of Fulgoroid planthoppers (Homoptera, Fulgoroidea) as a case of parallel adaptive radiation

The term “issidisation” is proposed to describe the formation of the specific box-like body shape (including elytra) in several families of planthoppers (Acanaloniidae, Caliscelidae, Issidae, Nogodinidae, and Tropiduchidae). Parallel radiation resulting from adaptation to semi-arid and arid conditions is considered the cause of issidisation. The possibly rapid rate of evolution of higher Fulgoroidea and especially Issidae is discussed. Pyrogenic renewal of Mediterranean-type communities is hypothesized to be the cause of sympatric speciation in the Mediterranean insects.

New synonyms, combinations, and faunistic records of Western Palaearctic planthoppers of the family Issidae (Homoptera, Fulgoroidea)

Within the frame of the study of the Western Palaearctic Issidae, two generic and four specific synonyms are established: Logvinenkoana Gnezdilov, 2002 is placed as a synonym for Anatolodus Dlabola, 1982; Falcidiopsis Kusnezov, 1930, for Kervillea Bergevin, 1918; Hysteropterum ignavum Dlabola, 1981, for Aeluropsis karabachica Logvinenko, 1975; Hysteropterum alciranum Gnezdilov, 2003, for Hysteropterum alicantium Dlabola, 1986; Hysteropterum tangirum Matsumura, 1910, for Hysteropterum guadarramense Melichar, 1906, and Mycterodus syriacus Gnezdilov, 2008, for Mycterodus bicornutus Dlabola, 1986. Subgenus Corymbius Gnezdilov, 2002 is upgraded to genus. 12 new generic combinations are established: Aeluropsis karabachica Logvinenko, 1975, A. midica Logvinenko, 1975, Hysteropterum pictifrons Melichar, 1906 and H. transcaucasicum Melichar, 1914 are transferred to the genus Anatolodus Dlabola, 1982; Bubastia carinata Logvinenko, 1978 and B. parva Logvinenko, 1977, to the genus Inflatodus Dlabola, 1982; Quadrastylum tubulatum Dlabola, 1989, to the genus Rhissolepus Emeljanov, 1971; Hysteropterum laminatum Horváth, 1911, to the genus Libanissum Dlabola, 1980; Hysteropterum drahamense Linnavuori, 1965, to the genus Bergevinium Gnezdilov, 2003; Conosimus ochaninei Puton, 1890, to the genus Quadriva Ghauri, 1965; Hysteropterum guadarramense Melichar, 1906, to the genus Tingissus Gnezdilov, 2003; Agalmatium corsicum Dlabola, 1982, to the genus Fieberium Dlabola, 1980. New faunistic records are given for 18 species.

Revision of the tribe Colpopterini Gnezdilov, 2003 (Homoptera, Fulgoroidea: Nogodinidae)

The tribe Colpopterini Gnezdilov, 2003 is revised, upgraded to the subfamily Colpopterinae, stat. n., and transferred from the family Issidae Spinola to Nogodinidae Melichar. The tribe Colpopterini is recorded from the Afrotropical Region for the first time—Bumerangum deckerti gen. et sp. n. is described from Southern Africa. The tribe Colpopterini s. str. comprises 6 genera: Bumerangum gen. n., Caudibeccus Gnezdilov et O’Brien, 2008, Colpoptera Burmeister, 1835, Jamaha Gnezdilov et O’Brien, 2008, Neocolpoptera Dozier, 1931, and Ugoa Fennah, 1945. The genera Cheiloceps Uhler, 1895, Tempsa Stål, 1866, Eupilis Walker, 1857, and Gabaloeca Walker, 1870 are transferred to the tribe Issini Spinola of the family Issidae. Issus longulus Lethierry, 1890 is transferred to the genus Colpoptera Burmeister. A key to the genera and a list of the species of the tribe Colpopterini are given. Morphological data confirming independent evolution of similar ovipositor types in the families Issidae and Nogodinidae are provided. The term “styletization” is suggested for describing the transformation of the ovipositor from a rounded to an elongate type.

On the composition and distribution of the family Acanaloniidae Amyot et Serville (Homoptera, Fulgoroidea)

The composition of the family Acanaloniidae Amyot et Serville, 1843 is revised. According to the synapomorphies in the structure of the male and female genitalia, the family Acanaloniidae s. str. comprises 4 New World genera: Acanalonia Spinola, 1839, Batusa Melichar, 1901, Chlorochara Stål, 1869, and Philatis Stål, 1862. Galapagosana Distant, 1909 and Euthiscia Van Duzee, 1923 are placed in synonymy to Philatis Stål, 1862. The taxonomic position of the genera Aylaella Demir et Ozdikmen, 2009 (replacement name pro Perinetia Lallemand et Synave, 1954), Hemithiscia Schmidt, 1912, Paraphilatis Melichar, 1912, Parathiscia Melichar, 1901, Pseudothiscia Schmidt, 1912, Thinea Melichar, 1912, and Thiscia Stål, 1862 is unclear and needs further study.

New and little known planthoppers of the subfamily Ommatidiotinae (Homoptera, Fulgoroidea, Caliscelidae) from Madagascar and South Asia

Cano merinus gen. et sp. n., belonging to the tribe Augilini Baker, is described from Madagascar. Tubilustrium typicum Distant, 1916 is transferred from the tribe Ommatidiotini Fieber to the tribe Augilini. Lasonia kirkaldyi Melichar, 1903 is transferred from the family Issidae to the family Caliscelidae, tribe Adenissini Dlabola. A key to the tribes of the subfamily Ommatidiotinae is provided.

Karyotype stability in the family Issidae (Hemiptera, Auchenorrhyncha) revealed by chromosome techniques and FISH with telomeric (TTAGG)n and 18S rDNA probes

Abstract We report several chromosomal traits in 11 species from 8 genera of the planthopper family Issidae, the tribes Issini, Parahiraciini and Hemisphaeriini. All species present a 2n = 27, X(0) chromosome complement known to be ancestral for the family. The karyotype is conserved in structure and consists of a pair of very large autosomes; the remaining chromosomes gradually decrease in size and the X chromosome is one of the smallest in the complement. For selected species, analyses based on C-, AgNOR- and CMA3-banding techniques were also carried out. By fluorescence in situ hybridization, the (TTAGG)n probe identified telomeres in all species, and the major rDNA loci were detected on the largest pair of autosomes. In most species, ribosomal loci were found in an interstitial position while in two species they were located in telomeric regions suggesting that chromosomal rearrangements involving the rDNA segments occurred in the evolution of the family Issidae. Furthermore, for 8 species the number of testicular follicles is provided for the first time.

Notes on the phylogenetic relationships of planthoppers of the family issidae (Hemiptera, Fulgoroidea) of the Western Palaearctic fauna, with descriptions of two new genera

Seven groups of genera are distinguished in the subtribe Issina Spinola. The new genera Apedalmus gen. n. (the type species Falcidius abruzicus Dlabola, 1983) and Thalassana gen. n. (the type species: Hysteropterum ephialtes Linnavuori, 1971) are erected. The subgenera Acrestia Dlabola, 1980, Montissus Gnezdilov, 2003, and Atticus Gnezdilov, 2003 are upgraded to genera. The subgenus Capititudes Gnezdilov, Drosopoulos et Wilson, 2004 is transferred to the genus Acrestia, and the subgenus Stygiata Emeljanov, 1972 to Celyphoma Emeljanov, 1971. The subtribe Agalmatiina Gnezdilov, 2002 and the subfamily Hysteropterinae Melichar, 1906 are placed in synonymy under Issina Spinola, 1839. Issus reticulatus Herrich-Schäffer, 1835 is designated as the type species of the genus Hysteropterum Amyot et Serville, 1843.