Dryinus grimaldii Olmi

Olmi, Massimo & Guglielmino, Adalgisa, 2011, Revision of fossil species of Dryinus belonging to lamellatus group, with description of a new species (Hymenoptera, Dryinidae), ZooKeys 130, pp. 505-514 : 507-509

Dryinus grimaldii Olmi Figs 1-3

Dryinus grimaldii Olmi 1995: 254.

Dryinus grimaldii Olmi: Olmi 2000: 65.

Dryinus grimaldii Olmi: Olmi and Bechly 2001: 45.

Type material.

Holotype, female, Early Miocene amber from the Dominican Republic (16-19 Ma) (AMNH, No. DR-10-1426); same locality label, 1 female paratype (AMNH, No. DR-10-1423).

Additional specimens examined.

same locality, three female specimens (GPJC).

Diagnosis.

Female with enlarged claw not reduced and not spatulate (Figs 1, 2), longer than arolium; enlarged claw with two subapical teeth. Male unknown.

Redescription.

Female: macropterous; length 4.3-6.3 mm. Colour difficult to discern, apparently testaceous, except two dark lateral spots on sides of pronotal disc, scutum, scutellum, propodeum and tegula dark; metasoma with dark transverse band. In paratype, legs with dark spots on coxae and clubs of femora; scutum apparently without dark lateral spots. In one specimen of GPJC labelled H-10-100, apparently scutum without lateral dark spots, scutellum not darkened, posterior surface of propodeum darkened. In two specimens of GPJC labelled H-10-23C, body totally testaceous, except petiole black and two brown spots on sides of scutum. Antenna 10-segmented, long and very slender, filiform, not thickened distally, covered with dense and short hairs; antennal segments of holotype in following proportions: 10:5:44:57:38:21:9:9:9:17; antenna more than nine times as long as head (length of head dorsally measured from occipital carina behind ocelli to distal apex of mandible): 219:22. Head weakly convex, apparently shiny, finely punctate, without apparent sculpture among punctures; clypeus and mandible not distinct; occipital carina apparently complete; occiput deeply excavated; eye normally bulging; POL = 2; OL = 1.5; OOL = 10; OPL = 1.5; TL = 5; greatest breadth of posterior ocellus longer than POL (4:2); frontal line absent. Maxillary palpi not evident, apparently 6-segmented. Labial palpi not distinct. Pronotum apparently shiny, finely punctate, about as long as head, crossed by anterior strong transverse impression between anterior collar and disc; disc humped; posterior collar very short; pronotal tubercle reaching tegula. Scutum apparently shiny, finely punctate, slightly shorter than pronotum (19:22). Notauli complete, posteriorly separated; minimum distance between notauli about as long as greatest breadth of posterior ocelli. In one specimen of GPJC labelled H-10-100, notauli apparently almost complete, not reaching posterior margin of scutum. Scutellum apparently shorter than scutum (10:19), with sculpture not evident. Metanotum shorter than scutellum (6:10), with sculpture not evident. Propodeum longer than scutum (39:19), reticulate rugose, areolae very broad; posterior surface with two complete longitudinal keels; sculpture of median area of posterior surface not evident. In one specimen of GPJC labelled H-10-100, dorsal surface of propodeum with two median longitudinal and almost parallel keels. Shape of pronotum, scutum, scutellum, metanotum and propodeum usual for Dryininae . Forewing hyaline, without dark transverse bands, with usual venation of Dryininae ; pterostigma narrow, much longer than broad (32:4); marginal cell apparently open; distal part of stigmal vein longer than proximal part (16:11); stigmal vein not S-shaped, forming angle between proximal and distal parts; forewing with usual three basal cells clearly enclosed by pigmented veins (costal, median and submedian cells). Hindwing hyaline, without dark transverse bands. Foreleg segments in following proportions: 55 (coxa): 53 (trochanter): 61 (femur): 60 (tibia): 18 (tarsal segment 1): 5 (tarsal segment 2): 8 (tarsal segment 3): 55 (tarsal segment 4): 78 (tarsal segment 5); foreleg chelate; enlarged claw much shorter than segment 5 of protarsus (42:78); protrochanter more than four times as long as broad (53:5)(greatest breadth measured on distal club), with long and slender proximal stalk, broadened after half-way; segments 2 and 3 of protarsus produced into hooks; rudimentary claw present; arolium much shorter than enlarged claw (8:42); enlarged claw with two strong subapical teeth and 1 row of 8 lamellae; subapical teeth of enlarged claw very strong, such as in Plesiodryinus ; distal apex of enlarged claw not spatulate. Segment 5 of protarsus with 2 rows of approximately 50 lamellae; distal apex with group of at least 20 lamellae (number of lamellae not evident). Midleg segments in following proportions: 22 (coxa): 7 (trochanter): 41 (femur): 60 (tibia): 17 (tarsal segment 1): 15 (tarsal segment 2): 15 (tarsal segment 3): 14 (tarsal segment 4); segment 5 of mesotarsus not distinct. Hindleg segments in following proportions: 27 (coxa): 11 (trochanter): 48 (femur): 80 (tibia); segments of metatarsus not distinct in holotype; segments of metatarsus of paratype in following proportions: 37 (tarsal segment 1): 19 (tarsal segment 2): 13 (tarsal segment 3): 10 (tarsal segment 4): 11 (tarsal segment 5). Metasoma without distinct and slender petiole. Shape and length of petiole usual for Dryininae . Shape, length and breadth of wings usual for Dryininae . Shape of body usual for Dryininae . Tibial spurs of holotype hardly visible, apparently 1/1/1; in one specimen of GPJC labelled H-10-100, tibial spurs distinctly 1/1/2.

Male: unknown.

Hosts.

Unknown.