Toxophora leucon Séguy, 1930

Lamas, Carlos José Einicker, Cunha, André Mallemont & Couri, Márcia Souto, 2003, Description of the pupae of two Toxophora species from Brazil (Diptera, Bombyliidae, Toxophorinae, Toxophorini), Zootaxa 315, pp. 1-7 : 3

Toxophora leucon Séguy, 1930

Figs. 1–5

Pupa ( Fig. 1 ). Length: 11.5–12.2 mm. Head width: 1.9–2.1 mm. Thorax width: 2.6–2.8 mm. Abdominal width: 3.1–3.2 mm, tapering to 0.7–0.9 mm at width of anal segment. Coloration: light brown; cephalic and anal tubercles and dorsal abdominal chitinous rods dark brown, darker apically; setae yellowish.

Head. Armed with two pairs of cephalic tubercles fused basally to form a concave arch. Anterior spines totally fused, except at apex ( Fig. 2 ), six times longer than the second pair that is situated laterally ( Fig 3 ); both pairs tapering to sharp apex. Anterior spines with three pairs of short and thin setae, the first pair on the dorsal surface, near the base of the spines and the second on the lateral surface, on the basal half of the spine and a third pair appears ventrally, near the base of the second pair of cephalic tubercles; an additional pair of setae is placed ventrolaterally on the head ( Fig. 2 ).

Thorax. With two pairs of dorsal setae ( Fig. 1 ); prothoracic spiracle heavily sclerotized, with a dark brown coloration, raised above the surface and located immediately behind the head.

Abdomen. Segment I with thin and long setae, placed on lateral apices of the tergite ( Fig. 1 ); segments II–VIII present a similar setal pattern; dorsally the chitinous rods are randomly intercalated with long and thin setae; pleura with three or four strong and long setae, arranged in an oblique row and sternites with four setae placed laterally; on the last segment, the anal tubercle has two pairs of similar spines in a quadrilateral pattern and tapering to a sharp apex ( Fig. 4 ); ventral pair curved downwards ( Fig. 5 ). Abdominal spiracles slightly darker and more sclerotized than the surrounding area, raised above the surface and placed laterally on segments I–VII.

Hosts. Hymenoptera – Pachodynerius brevithorax (Saussure), 1852; Pachodynerius praecox Saussure, 1855; Pachodynerius sp. ( Vespidae , Eumeninae ), Trypoxylon sp. ( Sphecidae, Larrinae ); and Centris analis (Fabricius), 1804 ( Anthophoridae , Anthophorinae ).

Examined material. BRAZIL, Mato Grosso do Sul: Corumbá, 16­XI­1994, 1 male and its puparium, Gomes, L. F. leg. (MNRJ); 24­X­1994, 1 female and its puparium, Gomes, L. F. leg. (MNRJ). There are eight other specimens from this series, deposited in the Universidade Federal de Viçosa (MUFV). Minas Gerais: Ituiutaba (Faz. Experimental), 23­V­ 1991, 1 female, José Maria, leg.(FFCLRP); 17­VI­1991, 1 male (MNRJ); 08­II­1992, 1 female (MNRJ); 12­II­1992, 1 male and 1 female (FFCLRP); 13­II­1992, 1 female (FFCLRP); 27­II­1992, 1 female (FFCLRP); São Paulo: Mogi Guaçu (Reserva Biológica), 12­II­1999, 1 female, Camillo, Silva e Serrano leg. (MNRJ); Patrocínio Paulista (Fazenda Santa Cecília), 23­VIII­2000, 1 female, Garófalo, Gazola e Serrano leg. (FFCLRP); Estação Ecológica Paulo de Faria, 25­III­1999, 1 male, Garófalo, Gazola e Serrano leg. (MNRJ); 26­IV­1999, 1 male, Garófalo, Gazola e Serrano leg. (FFCLRP); 05­VI­1999, 1 female, Garófalo, Gazola e Serrano leg. (FFCLRP); 31­X­1999, 1 male and 1 female, Garófalo, Gazola e Serrano leg. (FFCLRP); 08­XI­1999, 1 male, Garófalo, Gazola e Serrano leg. (FFCLRP); 30­XII­1999, 1 male Garófalo, Gazola e Serrano leg. (FFCLRP).

Figures

FIGURES 1 – 5. Toxophora leucon pupae: 1. General lateral view; 2. Cephalic tubercle, dorsal view; 3. Cephalic tubercle, lateral view; 4. Anal tubercle, dorsal view; 5. Anal tubercle, lateral view.