Trichogrammatoidea annulata De Santis 1972
Creators: name: Querino, R. B.
name: Zucchi, R. A.
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Trichogrammatidae
Trichogrammatoidea
Trichogrammatoidea annulata

description: Trichogrammatoidea annulata De Santis, 1972
(Figs.1 –4; Table 1)
Trichogrammatoidea annulata De Santis 1972: 122; Pinto 1997a: 594; De Santis 1981: 31; Hohmann & Lovato 2003: 351; Maceda et al. 2003: 27; Noyes 2004.
DIAGNOSIS — This species is distinguished by the apically divergent volsellae which describe an inverted V. The others species recorded in Brazil, T. bennetti, T. nana and T. robusta are somewhat similar to T. annulata. In T. bennetti the volsellae are far below the apex of the parameres and the genital capsule lacks a broad apex. In T. nana the intervolsellar process is distinct and the apex of the volsellae are far below the apex of the parameres. In T. robusta, the genital capsule is tapered at its base, its apex is broad, and the volsellae are very near the level of parameres.
REDESCRIPTION — Male: Body size — from 0.56 to 0.66 mm. Antenna — the antennal structure consists of one anellus, two funicular segments and three claval segments (Fig. 1 B); all funicular and claval segments are distinct. There are various sensilla on the male antenna: Flagelliform setae (FS) are elongate and distributed on the flagellar segments, length of the longest flagelliform seta/width of the flagellum (2.59 ± 0.14), length of the longest flagelliform seta/hind tibial width (3.93 ± 0.18); a basiconic peg sensilla (BPS) at five positions along the flagellum, a maximum of two sensilla at positions 2– 3; BPS formula 1­2­2­1­1; length to width of flagellum (5.43 ± 0.30); length of the flagellum to the hind tibial width (8.24 ± 0,30); length of the flagellum to the hind tibial length (1.15 ± 0.04). Mesoscutum and Mesoscutellum — an anterior and posterior pair of setae on the midlobe of the mesoscutum and the mesoscutellum; the mesoscutellar setae of similar length; the mesoscutellum with the anterior setae (0.25 ± 0.02) the length of the posterior pair). Forewing — broad (fig. 1C), width to length ratio (0.50 ± 0.01); distinct setal lines stop near stigmal vein; longest marginal setae ca. 0.44 times hind tibial length; length of longest marginal setae to hind tibial width (3.17 ± 0.32); infuscation posterior of marginal vein (fig. 1C). Hind wing — the middle track is complete to the wing apex (fig. 1D); the anterior and posterior tracks entirely absent. Genital capsule — genital capsule longer than wide (figs. 1 F,G; 3); width to length of the genital capsule (0.33 0.02); volsellae divergent, closer to ach other at their base than their apex, forming an inverted V (figs. 3E,G); ventral ridge long xtending beyond the mid­point of the genital capsule (fig. 3D); ventral processes near of the base do intervolsellar process (figs. 3E,G); intervolsellar process minute or absent (figs. 3 D,E,F,G). Apical distance/length of the genital capsule (0.15 ± 0.01); apical width/width of the genital capsule (0.57 ± 0.03); length of ventral ridge/ basal distance (0.31 ± 0.36); basal distance/length of the genital capsule (0.85 ± 0.01); aedeagus length/hind tibial length (0.56 ± 0.02); aedeagus apodemes length/aedeagus length (0.57 ± 0.03). Quantitative data taken from seven males from Londrina (Table 1).
Female: antenna with one distinct anellus (figs. 1 A, 2A), second anellus very small and appressed to first funicular segment (fig. 2A), difficult to see in slide material; two funicular segments and a single claval segment. Four placoid sensilla on claval segment.
TYPE MATERIAL — Holotype female. BRAZIL. SÃO PAULO: Campinas, May/ 1971, ex Alabama argillacea eggs, Rossetto coll. (MUSEO DE LA PLATA) (examined). Allotype, same data of holotype (examined). Paratypes: 5 males and 3 females (MUSEO DE LA PLATA); 1 male and 1 female (ESALQ); same data of holotype (examined).
MATERIAL EXAMINED — BRASIL. Paraná: Cambé, 18­viii­1999, ex Stenoma catenifer eggs, Celso Hohmann col., 3 males (ESALQ); Arapongas, 05­ii­2001, ex Stenoma catenifer eggs, Celso Hohmann col., 5 males (ESALQ); Londrina, xii/2001, ex Hypolaca andremona eggs, Celso Hohmann col., 7 males (ESALQ).
VARIATION — Seven males from Londrina differ from those of Cambé and Arapongas by having a shorter ventral ridge.
GEOGRAPHIC DISTRIBUTION — Argentina (De Santis 1981); Brazil, state of São Paulo (De Santis 1972) and state of Paraná (Hohmann & Lovato 2003).
HOST — Alabama argillacea (De Santis 1972); Stenoma catenifer and Hypolaca andremona (Hohmann & Lovato 2003); Helicoverpa gelotopoeon (De Santis 1981).
description: Published as part of Querino, R. B. & Zucchi, R. A., 2004, Redescription of Trichogrammatoidea annulata De Santis (Hymenoptera: Trichogrammatidae), pp. 1-7 in Zootaxa 677 on pages 2-3, DOI: 10.5281/zenodo.158556