Dryinus milleri Olmi, Copeland & van Noort, 2019

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 332-333

23. Dryinus milleri Olmi, Copeland & van Noort , sp. nov.

( Figs 135B , 136 )

Diagnosis. ♀ of Dryinus with head mostly black; head completely and strongly reticulate rugose, with region of vertex along occipital carina sculptured by numerous short longitudinal keels; mesosoma black, except prothorax red ( Fig. 136 ); protarsomere 1 almost 3 × as long as 4; enlarged claw ( Fig. 135B ) approximately as long as protarsomere 5, with one row of peg-like setae.

Description. ♀ ( Figs 136 ). Fully winged; body length 5.5 mm. Head black, except mandible, clypeus, malar space and narrow stripe between antennal toruli and between eyes and antennal toruli testaceous-reddish; antenna testaceous, except antennomere 3 slightly darkened; mesosoma black, except prothorax red; metasoma testaceousreddish, except distal third black; proleg testaceous; meso- and metaleg testaceous, except femur, tibia and part of coxa brown. Antenna clavate; antennomeres in following proportions: 15:6:27:14:12:10:10:8:8:10; antennomere 3 about ten × as long as broad (27:2.5). ADOs present on antennomeres 5–10. Head ( Fig. 136C ) dull, slightly convex, granulate and completely reticulate rugose (with region of vertex along occipital carina sculptured by numerous short longitudinal keels); frontal line complete; occipital carina complete; POL = 5; OL = 3; OOL = 10; OPL = 5; TL = 7; greatest breadth of lateral ocelli shorter than POL (4:5). Pronotum shiny, punctate and slightly rugose, crossed by transverse furrow; disc slightly humped; posterior collar very short; pronotal tubercle not reaching tegula. Mesoscutum dull, granulate and reticulate rugose. Notauli incomplete, reaching about 0.7 × length of mesoscutum. Mesoscutellum strongly punctate, unsculptured among punctures. Metanotum granulate and rugose. Metapectal-propodeal disc reticulate rugose, approximately as long as propodeal declivity; propodeal declivity reticulate rugose, with two short incomplete longitudinal keels. Forewing ( Fig. 136D ) with two dark transverse bands; distal part of 2r-rs&Rs vein longer than proximal part (19:12). Protarsomeres in following proportions: 31:3:6:11:19. Enlarged claw ( Fig. 135B ) with one large subdistal tooth and one row of 6 peg-like setae. Protarsomere 5 ( Fig. 135B ) with one row of 15 lamellae; apex with about 6 lamellae. Tibial spurs 1/1/2.

♂. Unknown.

Material examined. Type: ♀ holotype, NMK/INV/T-643: KENYA: Nairobi Prov. , ICIPE Campus, Kasara- ni, 1.22281°S 36.89714°E, 1600 m, 17–25.I.2017, MT, near stream, shaded area under trees, R. Copeland leg. ( NMK) ;

Hosts. Unknown.

Distribution. Kenya.

Etymology. This species is named in honour of Scott Miller, formerly Programme Leader, Biodiversity and Conservation, and Principal Scientist at the International Centre of Insect Physiology and Ecology in Nairobi, on whose campus this striking wasp was collected.

Figures

FIGURE 135. A–C, E: chelae of Dryinus species. A: D. mayogo (Benoit), holotype; B: D. milleri Olmi, Copeland & van Noort sp. nov., holotype. C: D. mobotensis Olmi, Copeland & van Noort sp. nov., holotype. E: D. modestus Olmi, holotype. D: head of Dryinus modestus Olmi, ♀ holotype, in dorsal view. Scale bar: A: 0.2 mm; B: 0.13 mm; C: 0.12 mm; D: 0.26 mm; E: 0.09 mm.

FIGURE 136. Dryinus milleri Olmi, Copeland & van Noort sp. nov., ♀ holotype: habitus in dorsal (A) and lateral (B) view; head in frontal view (C); forewing (D).