Stelis Panzer, 1806

Nalinrachatakan, Pakorn, Ascher, John S., Kasparek, Max, Traiyasut, Prapun, Thanoosing, Chawatat & Warrit, Natapot, 2023, A review of the anthidiine bees (Apoidea, Megachilidae) in Thailand, ZooKeys 1186, pp. 235-284 : 235

Stelis Panzer, 1806

Trachusa Jurine, 1801: 164 (nec Panzer 1804). Type species: Apis aterrima Panzer, 1798, by designation of Morice and Durrant 1915: 426. Suppressed by Commission Opinion 135, 1939 (Direction 4).

Stelis Panzer, 1806: 246. Type species: Apis aterrima Panzer, 1798 (nec Christ 1791) = Apis punctulatissima Kirby, 1802, monobasic.

Gyrodroma Klug in Illiger 1807: 198; Klug 1807: 225. Type species: Apis aterrima Panzer, 1798 (not Christ 1791) = Apis punctulatissima Kirby, 1802, designated by Sandhouse 1943: 555. [Sandhouse incorrectly considered Gyrodroma to be monobasic; two species were listed by Klug in Illiger 1807, which has page priority over Klug 1807].

Gymnus Spinola, 1808: 9. Type species: Apis aterrima Panzer, 1798 (nec Christ 1791) = Apis punctulatissima Kirby, 1802, monobasic.

Ceraplastes Gistel, 1848: x [10], unjustified replacement for Stelis Panzer, 1806. Type species: Apis aterrima Panzer, 1798 (nec Christ 1791) = Apis punctulatissima Kirby, 1802, autobasic.

Chelynia Provancher, 1888: 322. Type species: Chelynia labiata Provancher, 1888, monobasic [see Provancher 1889].

Melanostelis Ashmead, 1898: 283. Type species: Melanostelis betheli Ashmead, 1898 = Stelis rubi Cockerell, 1898, by original designation.

Stelidium Robertson, 1902: 323. Type species: Stelidium trypetinum Robertson, 1902, monobasic [see Michener 1997].

Microstelis Robertson, 1903: 170, 175. Type species: Stelis lateralis Cresson, 1864, by original designation.

Stelis (Pavostelis) Sladen, 1916: 313. Type species: Stelis montana Cresson, 1864, monobasic.

Stelis (Stelidina) Timberlake, 1941: 131. Type species: Stelis hemirhoda Linsley, 1939, by original designation.

Stelis (Stelidiella) Timberlake, 1941: 133. Lapsus for Stelidina Timberlake, 1941.

Stelis (Leucostelis) Noskiewicz, 1961: 126, 132. Type species: Gyrodroma ornatula Klug, 1807, by original designation.

Note.

Most of the cleptoparasitic bees of the Anthidiini are attributed to the genus Stelis due to the very diverse morphs. The recent works by Michener and Griswold (1994), Michener (2000, 2007), and Kasparek (2015) for species in Europe, North Africa, and the Middle East provide comprehensive information for Stelis . Female Stelis notably lack scopa and juxta-antennal carina, while the carinae on prosoma and mesosoma can be absent or weakly present. In males, T7 is round, weakly bilobed, or trilobed. The only subgenus discovered in Thailand is Malanthidium (see Nalinrachatakan 2021b), only known by males and can be recognized by its distinct postero-lateral hook on its axilla.