Anthrax macquarti d’Andretta & Carrera, 1952

(Figs. 26–31)

Anthrax leucopygus Macquart, 1855: 96 (76); Marston, 1970: 3, 77. [Preoccupied by Macquart, 1840.]

Anthrax leucopyga; Marston, 1970: 3, 77; Painter, Painter & Hall, 1978: 32; Evenhuis & Greathead, 1999: 307.

Anthrax macquarti d’Andretta & Carrera, 1952: 296; Marston, 1970: 3, 77; Painter, Painter & Hall, 1978: 32; Evenhuis & Greathead, 1999: 307.

Male: Length: 14.6–15.1 mm. Head width: 2.4–2.9 mm. Thorax width: 2.8–3.5 mm. Abdominal width 3.2–3.4 mm tapering to 1.2–1.4 mm on anal segment. Coloration: light brown; cephalic and anal tubercles and abdominal chitinous rods dark brown, darker apically; setae yellowish brown.

Head. Cephalic tubercles armed with three pairs of spines fused basally; first pair same length as second pair and placed above them; third pair ½ length of the others, placed laterally on the tubercle (Figs. 27 and 28). Central pair of spines with two pairs of setae, first pair on dorsal surface, near its base, second placed laterally on basal half of spine (Fig. 28). In ventral view, both anterior and posterior facial tubercles are present and totally fused, the first one with a pair of setae placed laterally, additional pair on the posterior margin (Fig. 29).

Thorax. With four pairs of setae, two pairs on dorsal surface placed close together, two pairs on lateral surface; prothoracic spiracle heavily sclerotized, dark brown, raised above surface and located immediately behind head (Fig. 26).

Abdomen. Segment I with transverse row of long setae, darker on apex and base, interrupted in center; segments II–V with transverse rows of chitinous rods intercalated with long, thin setae, row of setae interrupted in center; segments VI–VII with reduced chitinous rods, resembling small spines, intercalated with thin setae; segment VIII with only reduced chitinous rods; pleura and sternites with rows of strong and long setae (Fig. 26), sternites I–VII with complete rows of strong setae, located in middle of the segments; anal tubercle with three pairs of spines; central pair not fused and with two pairs of projections; first pair on apical third, converging to center, second pair on the middle third and directed downwards; second and third pairs of spines are tiny and located on base of first pair, on dorsal and ventral surfaces respectively; additional single spine on dorsal base of the tubercle (Figs. 30 and 31); abdominal spiracles slightly darker and more sclerotized than surrounding area, raised above surface and placed laterally on segments I–VII.

Female: unknown

Hosts: Hymenoptera: Trypoxylon rogenhoferi Kohl, 1884 (Eumenidae) and Centris analis (Fabricius, 1804) (Apidae) .

Distribution: Neotropical: Brazil (São Paulo, Minas Gerais, Rio de Janeiro), Bolivia, French Guiana, Paraguay, Peru, Suriname, Venezuela.

Examined material: BRAZIL, São Paulo: Patrocínio Paulista (Fazenda Santa Cecília), 09­ X­2000, 1 male, Garófalo, Gazola and Serrano leg. (MNRJ); São Paulo: Patrocínio Paulista (Fazenda Santa Cecília), 13­ XI­2000, 1 male, Garófalo, Gazola and Serrano leg. (MNRJ); São Paulo: Patrocínio Paulista (Fazenda Santa Cecília), 02­ I­2001, 1 male, Garófalo, Gazola and Serrano leg.; São Paulo: Patrocínio Paulista (Fazenda Santa Cecília), 28­ III­2001, 1 male, Garófalo, Gazola and Serrano leg.