Dinotrema armillariae (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 : 6-8

Dinotrema armillariae (Fischer, 1969)

( Figs 3 , 4 )

Aspilota armillariae Fischer 1969d: 194 ; Shenefelt 1974: 967; Marsh 1979: 220; Yu et al. 2012. Dinotrema armillariae: Peris-Felipo and Belokobylskij 2016b: 3 .

Material examined. 1 female (paratype), " U.S.А., Great Falls , Va., 25.ix.1913, ex fungus Clitocybla, R.C. Shannon Coll." ( NHMW).

Redescription. Female. Body 1.6 mm; fore wing 2.0 mm; hind wing 1.1 mm.

Head. In dorsal view, 1.8 × as wide as median length, 1.5 × as wide as mesoscutum, smooth. Eye in lateral view 1.4 × as wide as temple medially. POL 1.4 × OD; OOL 2.8 × OD. Face 1.7 × as wide as high. Clypeus 2.7 × as wide as high. Paraclypeal fovea reaching halfway distance between clypeus and eye. Mandible 1.3 × as long as its maximum width, weakly widened towards apex. Upper tooth rather wide, about as longer as lower tooth; middle tooth longer than upper tooth, pointed apically; lower tooth short, wide, subrounded. Аntenna 21-segmented. First flagellar segment 4.0 × as long as its apical width. Second and third flagellar segments 3.0 × as long as their maximum width; fourth to eighth segments 2.7–2.8 times; ninth to 12th segments 2.5 times; 13th and 14th segments 2.2 times; 15th to 17th segments 2.0 times; 18th segment 2.4 times, and 19th (apical) segment 2.8 × as long as wide respectively.

Mesosoma. In lateral view 1.1 × as long as high. Mesoscutum (in dorsal view) 0.9 × as long as its maximum width. Notauli mainly absent on horizontal surface of mesoscutum. Mesoscutal pit absent. Prescutellar depression (scutellar sulcus) with distinct median and without lateral carinae. Precoxal sulcus present, weakly crenulated, not reaching anterior and posterior margins of mesopleuron. Posterior mesopleural furrow smooth. Propodeum completely smooth. Propodeal spiracles very small, its diameter 0.3 × as wide as distance from spiracle to anterior margin of propodeum.

Leg. Hind femur 4.5 × as long as its maximum width.

Wings. Radial (marginal) cell 3.6 × as long as its maximum width. Vein r2 (3-SR) 2.2 × as long as vein cuqu1 (2-SR); vein r3 (SR1) 2.4 × as long as vein r2 (3-SR).

Metasoma. First tergite weakly widened towards apex, 0.8 × as long as its apical width, smooth. Ovipositor 5.0 × as long as first tergite, as long as metasoma, 2.1 × as long as hind femur.

Colour. Head, mesosoma, mandible and pterostigma brown to dark brown. Metasoma light brown. Legs, scape, pedicel and apical flagellar segment yellow. Wings hyaline.

Male. Unknown.

Comparative diagnosis. This species is similar to D. lobidens (Fischer, 1971) , but differs from it in having the first metasomal tergite 0.8 × as long as its apical width (2.0 × in D. lobidens ), eye in lateral view 3.8 × as wide as temple medially (2.0 × in D. lobidens ), mandible 1.3 × as long as its maximum width (almost equal in D. lobidens ), first flagellar segment 4.0 × as long as its maximum width (2.5 × in D. lobidens ), apical flagellar segments paler than middle segments (same colour in D. lobidens ), and hind femur 4.5 × as long as its maximum width (4.0 × in D. lobidens ).

Figures

FIGURE 4. Dinotrema armillariae (Fischer, 1969) (female, paratype). A. Mesonotum, dorsal view. B. Propodeum and first metasomal tergite, dorsal view. C. Hind leg, metasoma and ovipositor, lateral view.D. Fore wing.

FIGURE3. Dinotrema armillariae (Fischer, 1969) (female,paratype).A. Habitus, lateral view.B. Head and mesosoma,lateral view.C. Antenna.D. Mandible.E. Face, frontal view. F. Head, dorsal view.