Austrostelis zebrata ( Schrottky, 1905 )

Parizotto, Daniele R., Urban, Danúncia & Melo, Gabriel A. R., 2017, Revision of the cleptoparasitic bee genus Austrostelis Michener and Griswold (Hymenoptera: Apidae: Megachilinae), Journal of Natural History (J. Nat. Hist.) 52 (1 - 2), pp. 53-71 : 70

Austrostelis zebrata ( Schrottky, 1905)

( Figures 1 (f), 2(i), 4(f), 5(f), 6(f), 7(f))

Dianthidium zebratum Schrottky, 1905: 7 . Lectotype male, designated by Urban (1999), Paraguay: Itapua (MZUSP, examined).

Dianthidium itapuense Schrottky, 1920: 210 (unnecessary new name for Dianthidium zebratum Schrottky, 1905 ).

Comments and diagnosis

This species shares with A. amapaensis and A. catamarcensis the presence of ferruginous maculae on the head and mesosoma. It is characterized by having the head and mesosoma with yellow maculae merged with ferruginous maculae; scutellum yellowish or with yellowish band; terga with narrow yellow band, which can be complete or interrupted medially, and T2 with deep and sparse punctures on disc.

Variation. Females: The yellow maculae of the terga can vary from complete to incomplete.

Males: The integument of head can be black or ferruginous with yellow and ferruginous maculae. The scutum can be ferruginous merged with yellow reverse U-shaped maculae or almost entire scutum ferruginous merged with yellow. The mesepisternum has a spot or a large ferruginous maculae and the metepisternum can be black or with ferruginous spot. The yellow maculae on T1–T4 can be interrupted medially; T7 black or ferruginous with or without yellow band.

Distribution. Argentina: Misiones; Brazil: Paraná, São Paulo; Paraguay: Cordillera, Itapúa. A record for Cáceres, in Mato Grosso, Brazil, provided by Urban (1999) could not be confirmed, since the specimen has not been located.

Type material examined

Lectotype male of Dianthidium zebratum ‘Encarnacion / Paraguay / II.1905 /C. Schrottky’ ‘102.252’ ‘ Dianthidium / zebratum / ♂ Schrottky’ ‘ Stelis / zebrata /(Schr.)/Det. J. S. Moure 1957’ ‘Lectotypus’ ‘ Austrostelis / zebrata / Urban det.99’.

Additional material examined

Thirty-one specimens were studied and their collecting localities are as follows: BRAZIL: Paraná: Jaguariaiva; São Paulo: Rio Claro ( DZUP 29101 ), São Pedro ( DZUP 29103 ); ARGENTINA: Misiones: ( DZUP 29076–29100 , 29102 ); PARAGUAY: Cordillera: Caacupé .

Figures

Figure 1. Head (female), frontal view: (a) Austrostelis catamarcensis; (b) A. iheringi; (c) A. appendiculata; (d) A. saltensis sp. nov.; (e) A. santaterezae; (f) A. zebrata. Scale = 1.0 mm.