Dryinus digo, Olmi & Copeland & Guglielmino & Icipe, 2015

Olmi, Massimo, Copeland, Robert S., Guglielmino, Adalgisa & Icipe, 2015, An updated checklist of Dryinidae, Embolemidae and Sclerogibbidae (Hymenoptera) of Kenya and Burundi, with descriptions of thirteen new species, Acta Entomologica Musei Nationalis Pragae 55 (1), pp. 333-380 : 356-358

51. Dryinus digo sp. nov. *

( Figs 5C )

Type material. HOLOTYPE: ♀, KENYA: COAST: Kaya Kinondo , 4.39382°S 39.54567°E, 10 m, 25.xii.2011 – 8.i.2012, indigenous forest, Malaise trap, coral rag, canopy forest, R. Copeland leg. ( NMKE).

Diagnosis. Female with frontal line absent; head granulated, with some hardly visible irregular keels on face; occipital carina incomplete; head with POL slightly longer than OL; posterior ocelli not touching occipital carina, placed in front of imaginary straight line joining posterior edges of eyes; temple absent; posterior margin of vertex excavated; mesosoma black; posterior collar of pronotum present; scutum granulated and reticulate rugose; dorsal surface of propodeum about as long as posterior surface; forewing with distal part of stigmal vein less than three times as long as proximal part; segment 1 of protarsus slightly longer than segment 4; enlarged claw about as long as segment 5 of protarsus, with big subapical tooth ( Fig. 5C ). Description. Female. Fully winged; length 5.9 mm. Head black, except mandible testaceous, clypeus and gena ferruginous-dark and testaceous striae along orbits; antenna brown, except segments 7–10 and distal region of 6 whitish; mesosoma black; metasoma brown; legs brown, except tarsi testaceous-dark. Antenna clavate; antennal segments in following proportions: 12: 6: 29: 10: 9: 8: 6: 7: 7: 10. Rhinaria present in antennal segments 5–10. Head convex, dull, granulated, with some hardly visible irregular keels on face; frontal line absent; occipital carina incomplete, only present behind and on sides of posterior ocelli, laterally not reaching eyes; posterior ocelli situated in front of virtual straight line joining posterior edges of eyes; posterior margin of vertex weakly excavated; POL = 5; OL = 4; OOL = 8; OPL = 3; temple absent; greatest breadth of posterior ocellus about as long as OPL. Pronotum crossed by strong anterior transverse impression and strong posterior transverse furrow; disc humped; posterior collar very short; pronotum dull, granulated and sculptured by numerous longitudinal keels and striae; pronotal tubercle not reaching tegula. Scutum dull, granulated and reticulate rugose, with areolae very small, larger near posterior margin. Notauli apparently complete and posteriorly separated, hardly visible among areolae situated near posterior margin of scutum; minimum distance between notauli longer than POL (8: 5). Scutellum and metanotum granulated. Propodeum dull, without transverse keels, with dorsal and posterior surface reticulate rugose, not sculptured by longitudinal keels; dorsal surface of propodeum slightly longer than posterior surface (24: 22). Forewing with two dark transverse bands; distal part of stigmal vein longer than proximal part (20: 11). Protarsal segments in following proportions: 21: 3: 6: 18: 26. Enlarged claw ( Fig. 5C ) with one large subdistal tooth and one row of 5 very slender lamellae. Segment 5 of protarsus ( Fig. 5C ) with one row of 21 lamellae; distal apex with about 11 lamellae. Tibial spurs 1/1/2.

Male. Unknown.

Differential diagnosis. Based on the characters summarized in the above diagnosis, in the Afrotropical region the new species is similar to Dryinus shimbanus Olmi , in OLMI & COPELAND (2011). The main differences between these two species regards the frontal line, complete in D. shimbanus , absent in D. digo . In addition, rhinaria are present in antennal segments 5–10 in D. digo , 6–10 in D. shimbanus .

Etymology. This species is named in honor of the Digo people of coastal Kenya, guardians of the type locality, Kaya Kinondo; noun in apposition.

Hosts. Unknown.

Distribution. Only known from the type locality.

Figures

Fig. 5. A, C – chelae:A – Thaumatodryinus tuukkaraski sp. nov. (holotype); C – Dryinus digo sp. nov. (holotype); B – Thaumatodryinus overholti sp. nov., male genitalia (right half removed) (holotype). Scale bar: 0.20 mm for A; 0.13 mm for B; 0.56 mm for C.