Deinodryinus velteni Guglielmino & Olmi

Guglielmino, Adalgisa & Olmi, Massimo, 2011, Revision of fossil species of Deinodryinus, with description of a new species (Hymenoptera, Dryinidae), ZooKeys 130, pp. 495-504 : 500-502

Deinodryinus velteni Guglielmino & Olmi sp. n. Fig. 3

Etymology.

The species is named after Mr. Jürgen Velten (Idstein, Germany).

Material examined.

Type: Holotype, female, Eocene Baltic amber (40-45 mybp) (SMSN).

Diagnosis.

Female with antenna clavate and compound eye large (Fig. 3); distal part of stigmal vein much longer than proximal part (Fig. 3).

Description.

Female: macropterous; length 4.0 mm. Colour apparently brown-black, except palpi testaceous. Antenna 10-segmented, clavate, short, covered with dense and short hairs, thickened distally; antennal rhinaria absent; antennal segments in following proportions: 5:7:8:13:10:9:8:6:6:9; antenna much shorter than body, approximately three times as long as head (head length dorsally measured from occipital carina behind ocelli to distal apex of mandible): 75:25. Head only partly visible, slightly convex, dull, apparently granulated and hairless; occiput excavated; compound eye normally bulging; ocelli partly visible; ocellar triangle apparently equilater al; temple distinct. Pronotum long, crossed by anterior strong transverse impression, with posterior disc, without posterior collar; pronotum apparently almost glabrous, shiny, slightly shorter than head (22:25); pronotal disc flat posteriorly, much longer than anterior collar; pronotal tubercle reaching tegula. Scutum dull, apparently glabrous, granulated, slightly shorter than pronotum (19:22). Notauli complete, posteriorly separated; minimum distance between notauli approximately as long as antennal segment 2. Scutellum very humped (Fig. 3), much shorter than scutum (8:19). Metanotum very humped (Fig. 3), shorter than scutellum (6:8). Propodeum longer than scutum (29:19), apparently reticulate rugose; sculpture of dorsal and posterior surfaces visible only laterally. Metapleura dull, rugose and partly sculptured by transverse keels. Epicnemium present. Shape of head, scutum, scutellum, metanotum and propodeum usual for Anteoninae . Forewing apparently completely weakly darkened, with usual venation of Anteoninae . Pterostigma long and narrow, much longer than broad (30:6). Pterostigma shape similar to that of extant Deinodryinus . Marginal cell open. Stigmal vein not S-shaped, with distal part much longer than proximal part (20:14); stigmal vein forming an angle between proximal and distal parts. Forewing with usual three basal cells clearly enclosed by pigmented veins (costal, median and submedian cells). Hindwing apparently slightly darkened. Hindwing shape usual for Anteoninae . Foreleg segments in following proportions: 30 (coxa): 7 (trochanter): 43 (femur): 29 (tibia): 7 (tarsomere 1): 3 (tarsomere 2): 5 (tarsomere 3): 11 (tarsomere 4): 24 (tarsomere 5). Foreleg chelate. Enlarged claw slightly shorter than tarsomere 5 (22:24). Protrochanter short, slightly longer than broad (7:5). Protrochanter shape similar to that of Anteoninae . Tarsomeres 2 and 3 of protarsus produced into a hook. Rudimentary claw absent. Arolium much shorter than enlarged claw (8:22). Distal apex of enlarged claw apparently pointed. Tarsomere 5 of protarsus with numerous lamellae on inner margin and distal apex. Midleg segments in following proportions: 12 (coxa): 8 (trochanter): 26 (femur): 24 (tibia): 22 (tarsomere 1): 9 (tarsomere 2): 6 (tarsomere 3): 4 (tarsomere 4): 6 (tarsomere 5). Hindleg segments in following proportions: 19 (coxa): 5 (trochanter): 33 (femur): 32 (tibia): 23 (tarsomere 1): 10 (tarsomere 2): 8 (tarsomere 3): 4 (tarsomere 4): 6 (tarsomere 5). Petiole shape and length usual for Anteoninae . Palpal formula 6/3. Shape, length and breadth of wings usual for Anteoninae . Shape and morphology of body usual for Anteoninae . Tibial spurs 1/1/2.

Male: unknown.

Hosts.

Unknown.

Remarks.

In the holotype the clypeus, mandibular teeth, frontal line, occipital carina, POL, OL, OOL, OPL, TL, and posterior surface of the propodeum are not visible; the sculpture of the pronotum, scutellum, metanotum, and mesopleura is not distinct; the enlarged claw is only partly visible because of a closed chela so that it is not possible to see if there are subapical teeth and lamellae; and tarsomere 5 of the protarsus is only partly visible so that it is impossible to count the lamellae and to see if there are one or two rows of lamellae.