Dinotrema sylvaticae (Fischer, 1969)

Peris-Felipo, Frаncisco Jаvier & Belokobylskij, Sergey А., 2018, Revision of the New World species of the genus Dinotrema (Hymenoptera: Braconidae: Alysiinae), Zootaxa 4382 (1), pp. 1-55 : 47-49

Dinotrema sylvaticae (Fischer, 1969)

( Figs 42 , 43 )

Aspilota sylvaticae Fischer 1969b: 256 ; Shenefelt 1974: 981; Marsh 1979: 222; Yu et al. 2012.

Dinotrema sylvaticae: Peris-Felipo and Belokobylskij 2016b: 3 .

Material examined. 2 females (paratypes), " U.S.А., Iowa, Ledges States Park, Boone Country , 8.viii.1948, reared from Psalliota sylvatica, Jean Laffoon, F 44" ( NHMW).

Redescription. Female. Body 2.8 mm; fore wing 2.4 mm; hind wing 1.6 mm.

Head. In dorsal view, 1.8 × as wide as median length, 1.4 × as wide as mesoscutum, smooth. Eye in lateral view 1.3 × as wide as temple medially. POL 1.7 × OD; OOL 3.8 × OD. Face 1.8 × as wide as high. Clypeus 2.6 × as wide as high. Paraclypeal fovea reaching halfway distance between clypeus and eye. Mandible 1.2 × as long as its maximum width, weakly widened towards apex. Upper tooth as long as lower tooth; middle tooth long, pointed apically; lower tooth subrounded. Аntenna 26-segmented. First flagellar segment 4.0 × as long as its apical width.

Second segment 2.6 × as long as its maximum width; third segment 2.4 times; fourth to 17th 2.2 times; 18th to 23rd 2.0 times, 24th (apical) 2.5 × as long as their maximum width respectively.

Mesosoma. In lateral view 1.2 × as long as high. Mesoscutum (in dorsal view) 1.1 × as long as its maximum width. Notauli mainly absent on horizontal surface of mesoscutum. Mesoscutal pit present, elongate. Prescutellar depression (scutellar sulcus) with distinct median and lateral carinae. Precoxal sulcus present, crenulated, not reaching anterior and posterior margins of mesopleuron. Posterior mesopleural furrow crenulated. Propodeum completely sculptured with median longitudinal carinae. Propodeal spiracles small, its diameter 0.2 × as wide as distance from spiracle to anterior margin of propodeum.

Leg. Hind femur 3.6 × as long as its maximum width.

Wings. Radial (marginal) cell 3.8 × as long as its maximum width. Vein r2 (3-SR) 2.0 × as long as vein cuqu1 (2-SR); vein r3 (SR1) 2.2 × as long as vein r2 (3-SR).

Metasoma. First tergite widened towards apex, 2.0 × as long as its apical width, weakly striated in apical half. Ovipositor 0.8 × as long as first tergite, shorter than metasoma, 0.6 × as long as hind femur.

Colour. Body and antenna dark brown. Legs and first metasomal tergite yellowish brown. Wings hyaline.

Male. Unknown.

Comparative diagnosis. This species is similar to D. multiareolatum Peris-Felipo 2016 ; differences between both species are shown after the redescription of the latter species.

Figures

FIGURE 43. Dinotrema sylvaticae (Fischer, 1969) (female, paratype). A. Propodeum, dorsal view.B. First metasomal tergite, dorsal view.C. Hind leg, metasoma and ovipositor, lateral view.D. Fore and hind wings.

FIGURE42. Dinotrema sylvaticae (Fischer, 1969) (female,paratype).A. Habitus, lateral view.B. Head and mesosoma,lateral view.C. Mandible. D. Antenna. E. Face, frontal view. F. Head and mesonotum, dorsal view.