Trichogramma zucchii Querino, 2003

Querino, R. B. & Zucchi, R. A., 2003, Six new species of Trichogramma Westwood (Hymenoptera: Trichogrammatidae) from a Brazilian forest reserve, Zootaxa 134 (1), pp. 1-11 : 9-10

Trichogramma zucchii Querino , new species ( Figures 1f , 2f )

Antenna: flagellum long (0.21 0.004); ratio of the length to width of the flagellum (9.02 0.52); flagellum length to hind tibial length (1.01 0.01); flagelliform setae long (0.10 0.005), evenly tapering to apex; longest flagelliform setae length to flagellum width (4.45 0.37); several unsocketed setae in the first sections of the flagellum; basiconic sensilla with formula 2­2­2­0­1­1; three placoid sensilla, the basal one 0.06 0.002. Forewing: width to length ratio of the forewing (0.71 0.16); fringe setae short (0.02 0.004); fringe setae length to hind tibial length (0.12 0.02); fringe setae length to forewing width (0.07 0.01); 11­14 setae between the 4 th and 5 th setal tracks. Hind wings: anterior track absent; posterior track with 4 setae. Scutellum: anterior setae relatively long and dark. Male genitalia: genital capsule dark, long (0.15 0.002) and wide (0.06 0.001); ratio of the width to length of the genital capsule (0.41 0.00); apical distance to genital capsule length (0.27 0.01); apical width to genital capsule width (0.60 0.01); dorsal lamina without noticeable basal notching, narrowing abruptly posteriorly to form a linguiform, elongate, and relatively narrow posterior extension (0.04 0.002), which extends beyond the volsellae; dorsal lamina length to dorsal lamina width (2.34 0.20); dorsal lamina length to genital capsule length (0.42 0.01); posterior extension of the dorsal lamina length to dorsal lamina length (0.60 0.01); dorsal aperture elongate tapering posteriorly; dorsal aperture length to dorsal lamina length (1.60 0.06); dorsal ridge absent; ventral ridge extending beyond the middle of the genital capsule (0.06 0.002); ventral ridge length to basal distance (0.53 0.01); basal distance to genital capsule length (0.73 0.01); ventral processes placed near the base of the intervosellar process, which is relatively short (0.01 0.001) and slightly less than half the length of the volsellae. Quantitative data were based on three males.

TYPE MATERIAL ­ Holotype male. BRASIL. SÃO PAULO: Piracicaba, Tupi (forest reserve), suction trap, R. B. Querino collr. ( ESALQ). One paratype (male) ( ESALQ) and one paratype (male) ( UCR), with same data as holotype.

DIAGNOSIS ­ Trichogramma zucchii is very distinct. It is easily recognized from other South American species by the abruptly narrowed linguiform posterior extension of the dorsal lamina, which extends beyond the volsellae, dorsal aperture elongate tapering posteriorly, several unsocketed setae in the first section of the flagellum and anterior setae of the scutellum relatively long and dark.

ETYMOLOGY ­ This species is named by the first author for Prof. Roberto A. Zucchi, in recognition of his contribution to Trichogramma systematics.

Figures

FIGURE 1. Male genital capsule: a­Trichogramma acuminatum n. sp.; b­Trichogramma alloeovirilia n. sp.; c­Trichogramma parrai n. sp.; d­Trichogramma pusillum n. sp.; e­Trichogramma tupiense n. sp.; f­Trichogramma zucchii n. sp. (1­ventral; 2­ dorsal; scale 20 m).

FIGURE 2. Male genital capsule: a­Trichogramma acuminatum n. sp.; b­Trichogramma alloeovirilia n. sp.; c­Trichogramma parrai n. sp.; d­Trichogramma pusillum n. sp.; e­Trichogramma tupiense; n. sp. f­Trichogramma zucchii n. sp. (1­ventral; 2­ dorsal; scale 10 m).