New data on the taxonomy and fauna of Palaearctic species of the genus Thrypticus (Diptera: Dolichopodidae)

A new species, Thrypticus mongoliensis Negrobov, Selivanova et Maslova, sp. n. is described from Mongolia. According to the Palaearctic table of Negrobov, Stackelberg, published in 1971, the new species is close to the Thrypticus atomus Frey, differing in the form and chetotaxy of surstyli. Thrypticus atomus has straight surstyli, with 6 bristles and hairs at apex, while the new species has curved surstyli, more than 40 setae and hairs. On the morphology of the hypopygium, the new species is close to Thrypticus smaragdinus Gerstaecker, 1864, differing in the structure and chetotaxy of the surstyli, including curved and broadened at the base of the surstyli. Three species are listed for the fauna of Mongolia for the first time: Thrypticus intercedens Negrobov, 1967, Thrypticus emiliae Negrobov, 1971 in Negrobov et Stackelberg, 1971 and Thrypticus politus Negrobov, 1967. Thrypticus cuneatus (Becker, 1917) is recorded for the central part of the European part of Russia for the first time. Thrypticus bellus Loew, 1869 are indicated for the faunas of Karelia, Rostov and Lipetsk regions, Kyrgyzstan, Tajikistan and Uzbekistan for the first time. Thrypticus virescens Negrobov 1967 and Thrypticus laetus Verrall, 1912 are new records for Ryazan Regio

A New Species of the Genus Rhaphium (Dolichopodidae, Diptera) from Siberia

Rhaphium sibiricus Negrobov, Barkalov et Selivanova, sp. n. is described from the Altai Mountains. The new species is similar to Rhaphium gruniniani Negrobov, 1979, differing by black legs, simple, not thickened tip of fore basitarsus, length ratio of apical portion of vein CuA1 to crossvein dm-cu and by the shape of gonopodes.С высокогорного Алтая описан Rhaphium sibiricus Negrobov, Barkalov et Selivanova, sp. n. Новый вид близок к Rhaphium gruniniani Negrobov, 1979, от которого отличается черными ногами, простыми неутолщенными вершинами передних базитарзусов, соотношением длины вершинной части CuA1 к длине dm-cu и формой гонопод

Peloropeodinae (Diptera: Dolichopodidae) from Baltic amber

The Baltic amber genus Palaeomedeterus Meunier, 1894 (Diptera: Dolichopodidae) is redescribed and assigned to the subfamily Peloropeodinae. The genus Gheynia Meunier, 1899, syn.  n. is placed in synonymy with Palaeomedeterus. Palaeochrysotus ignavus Meunier, 1907 is designated as the type species of Palaeomedeterus. The previous designation of “Tipula culiciforme Meunier, 1899” (nomen nudum) as the type species of Palaeomedeterus is considered invalid. In addition, the names Dolichopus soccata Meunier, 1899 and Diaphorus fernandi Meuffels et Grootaert, 1999 are also considered nomina nuda. Palaeomedeterus bifurcatus (Meunier, 1907), comb.  n. (from Gheynia), P.  ignavus (Meunier, 1907) and P.  lassatus (Meunier, 1907) are redescribed. The genus Palaeomedeterus is similar to the extant genera of the subfamily Peloropeodinae, but it does not demonstrate any apomorphic character established for the extant genera. A  key for males of seven species of Palaeomedeterus known from Baltic amber (Eocene / Oligocene) is given

A key for determination of females of the Palaearctic species of the genus Dolichopus Latreille, 1796 (Diptera: Dolichopodidae) of the IV group, with description of а female Dolichopus grunini Smirnov, 1948

Complete key to females of Palaearctic species of IV group of the genus Dolichopus (species with mostly yellow femur and black postocullar bristles) is given. A female of Dolichopus grunini Smirnov, 1948 is described

Fauna of the species of the genus Rhaphium Meigen, 1803 (Diptera: Dolichopodidae) Krasnoyarsk region

21 species of the genus Rhaphium are recorded for Krasnoyarsk region, 4 of them are listed for Siberia for the first time

New species Sciapus Zeller, 1842 (Diptera: Dolichopodidae) from Armenia

The new species Sciapus medvedevi Negrobov et Selivanova, sp. n. is described from Armeni

A new species of the genus Achalcus Low, 1857 (Diptera: Dolichopodidae) from Far East region of Russia

Achalcus polleti Negrobov et Selivanova, sp. n. is described from Amur region, Russi

A new species of the genus Hercostomus Loew, 1857 (Diptera: Dolichopodidae) from Tajikistan

Hercostomus pokivajlovi Maslova et Negrobov, sp. n. is described from Pamir (Tajikistan)

The Rhaphium crassipes species group in the Palearctic Region with the description of a new species from Uzbekistan (Diptera: Dolichopodidae)

The Rhaphium crassipes species group in the Palearctic Region is defined and reviewed. It comprises 13 species including one new species. The species group is differentiated from other Rhaphium by the male mid tarsomeres 4 and 5, which are black, dilated and flattened dorsoventrally. New species Rh. samarkandiense Negrobov et Grichanov, sp. n. from Uzbekistan is described. Rh. johnrichardi Negrobov et Grichanov, nom. nov. (new name for Rh. vockerothi Negrobov, 1979 nec Robinson, 1964) is firstly described and illustrated. Rh. viklundi Grichanov, 2004 is placed in synonymy to Systenus bipartitus (Loew, 1850) (syn. n.). A key to the species group is provided, as well as new records for known species