Dryinus lesianus, Olmi & Capradossi & Guglielmino, 2021

Olmi, Massimo, Capradossi, Leonardo & Guglielmino, Adalgisa, 2021, Discovery of a new species of Dryinidae (Hymenoptera: Chrysidoidea) from the Republic of the Congo, Israel Journal of Entomology (Oxford, England) 51, pp. 35-41 : 36-39

Dryinus lesianus n. sp.

( Figs 1–3, 9)

LSID: urn:lsid:zoobank.org:act:E0B8F079-2E0C-45F7-9F47-194F3851A0B1 .

Etymology: The species is named after Lesio-Louna Park, where the type series was collected.

Diagnosis: Female of Dryinus with head and mesosoma almost totally black ( Figs 1, 2); temple absent ( Fig. 3); head with posterior margin of vertex almost straight, very slightly excavated ( Fig. 3); occipital carina incomplete ( Fig. 1); lateral ocelli not touching occipital carina ( Fig. 3); head (dorsally viewed) with lateral ocelli located in front of imaginary straight line joining posterior edges of eyes ( Fig. 3); mesoscutum with lateral regions sculptured by many irregular longitudinal keels and median region punctate, unsculptured among punctures ( Fig. 1); protarsomere 1 less than twice as long as 4; protarsomere 5 with very long apex ( Fig. 9); enlarged claw slightly shorter than protarsomere 5, with one big subapical tooth ( Fig. 9).

Description: Female ( Figs 1, 2). Fully winged; body length 4.6–7.7 mm (holotype 6.2 mm). Head black, except anterior margin of clypeus testaceous; antenna brown, except antennomeres 7–10 whitish and ventral side of scape and pedicel whitish; mesosoma black; metasoma brown; legs brown, except part of coxae and trochanters whitish, proximal extremities of tibiae and part of tarsus whitish. Antenna clavate; antennomeres in following proportions: 13:6:45:26:28:13:10:9:9:12;ADOs present in antennomeres 5–10. Head ( Fig. 3) shiny, punctate, unsculptured among punctures, partly slightly rugose; occipital carina incomplete, present only behind and on sides of lateral ocelli, laterally not reaching eyes, not present on temple and on lateroventral side of head; frontal line complete; clypeus bidentate; occipital carina incomplete, laterally not reaching eyes; lateral ocelli not touching occipital carina; posterior margin of vertex very slightly excavated ( Fig. 3); temple absent; ocellar ratio: POL:OL:OOL:OPL = 3:2:9:1; greatest breadth of lateral ocelli longer than OPL (3:1). Pronotum ( Figs 1, 2) shiny, unsculptured, except many longitudinal keels on dorsal and lateral regions; pronotum crossed by two deep transverse furrows; posterior collar short; pronotal tubercle not reaching tegula. Mesoscutum ( Fig. 1) shiny, with lateral regions sculptured by many irregular longitudinal keels; median region shiny, punctate, unsculptured among punctures. Notauli incomplete, reaching about 0.7× length of mesoscutum. Mesoscutellum and metanotum shiny, punctate, unsculptured among punctures. Metapectal-propodeal disc reticulate rugose, slightly longer than propodeal declivity (25:21); propodeal declivity reticulate rugose, without longitudinal keels. Mesopleuron punctate, unsculptured among punctures. Metapleuron sculptured by many transverse keels. Fore wing with two large dark transverse bands; distal part of stigmal vein (2r-rs&Rs) slightly curvilinear, much longer than proximal part (21:13). Protarsomeres in following proportions: 27:3:8:20:33. Protarsomeres 2 and 3 produced into hook. Enlarged claw ( Fig. 9) with one large subapical tooth and one row of 11 lamellae. Protarsomere 5 ( Fig. 9) with two rows of about 24 lamellae; apex with approximately 20 lamellae. Tibial spurs 1/1/2.

Male. Unknown.

Holotype: ♀ Republic of the Congo: Pool Department , Abio, Lesio-Louna Park, 3°06.020'S 15°31.440'E, 330 m, 23–30.ix.2008, MT, Sharkey & Braet ( DAF).

Paratypes: Republic of the Congo: 2♀ same label data as holotype but 16–23.ix.2008 ; 2♀ Pool Department, Iboubikro , Lesio-Louna Park , 3°16.196'S 15°28.267'E, 330 m, 15–22.ix.2008, Sharkey & Braet ; 6♀ same label data but ix.2008 (2♀), 24.ix–6.x.2008, MT1 (3♀), 1–8.ix.2008, MT1 (1♀) (all DAF) .

Hosts: Unknown.