Trichogramma alloeovirilia Querino & Zucchi, 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 : 5-6

Trichogramma alloeovirilia Querino & Zucchi , new species ( Figures 1b , 2b )

Antenna: flagellum relatively long (0.15 0.024); ratio of the length to width of the flagellum (6.20 0.69); flagellum length to hind tibial length (1.03 0.08); flagelliform setae long (0.08 0.006), evenly tapering to apex; longest flagelliform setae length to flagellum width (3.32 0.18); basiconic sensilla with formula 2­2­2­0­1­1 (1­1­2­0­1­ 1 in a unique specimen; in the smallest specimens the number of basiconic sensilla and setae are also reduced); three placoid sensilla, the basal one 0.04 0.004. Forewing: width to length ratio of forewing (0.59 0.09); fringe setae lenght (0.04 0.006); fringe setae length to hind tibial length (0.20 0.12); fringe setae length to forewing width (0.13 0.04); 8­9 setae between the 4 th and 5 th setal tracks. Hind wings: anterior track absent; posterior with 3­5 setae, reaching the mid­point of the middle track. Scutellum: anterior setae dark and relatively long; ratio of anterior to posterior pair (0.23 0.00). Male genitalia: genital capsule longer (0.12 0.005) than wide (0.04 0.004); ratio of the width to length of the genital capsule (0.37 0.03); apical distance to genital capsule lenght (0.25 0.02); apical width to genital capsule width (0.69 0.04); dorsal lamina originating anterior to middle of genital capsule; dorsal lamina without distinct basal notching; dorsal lamina length to dorsal lamina width (1.58 0.17); dorsal lamina length to genital capsule length (0.43 0.01); dorsal aperture length to dorsal lamina length (1.30 0.05); posterior extension of the dorsal lamina length (0.04 0.002), narrowing from base to apex at level of volsellae; posterior extension of the dorsal lamina length to dorsal lamina length (0.76 0.04); dorsal ridge absent; ventral ridge reaching the middle of the genital capsule (0.04 0.002); ventral ridge length to basal distance (0.50 0.01); basal distance to genital capsule length (0.75 0.02); ventral processes swollen and placed at base of intervolsellar process; intervolsellar process short; parameres with internal margin sclerotized. Quantitative data were obtained from five males.

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

DIAGNOSIS ­ Trichogramma alloeovirilia is recognized by the swollen ventral processes, which are far from each other; the dorsal lamina without distinct basal notching and the posterior extension tapering to a narrow apex and reaching the apex of the volsellae. Among the South American species, T. alloeovirilia is most similar to T. bruni by having short intervolsellar process and to Trichogramma tupiense (a species described herein) by the dorsal lamina gradually tapers from base to apex pointed, approaching the volsellae. However, it differs from theses species by the shape of the ventral processes, which are swollen and more distant from each other. In T. bruni and T. tupiense , the ventral processes are closed from each other and not swollen. Ventral processes swollen also occur in T. browningi , a North American species (John D. Pinto, pers. com.). However, T. browningi has dorsal lamina subtriangular with apically rounded apex and a basal notching. T. alloeovirilia is easily separated from this species by the absence of basal notching of the dorsal lamina and its very narrow, acuminate posterior extension.

ETYMOLOGY ­ The scientific name is a Latin adjective alloeo for different and virilia for male genitalia, in reference to the general aspect of the male genitalia.

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).