Dryinus undulatus (Benoit, 1950)

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619: 351-352

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Dryinus undulatus (Benoit, 1950)


37. Dryinus undulatus (Benoit, 1950)  

( Fig. 141 View FIGURE 141 F View FIGURE 141 )

Lestodryinus undulatus Benoit 1950b: 226   .

Richardsidryinus undulatus (Benoit)   : Olmi 1984: 919.

Dryinus undulatus (Benoit)   : Olmi 2004a: 357; Guglielmino & Olmi 2006: 46; Olmi et al. 2015: 360; 2016: 77.

Description. ♀. Fully winged; body length 6.0– 7.5 mm. Head black, except mandible, clypeus and anterior region of frons (more along orbits) yellow (in specimen from Kenya, 1.00661°N 37.38631°E, clypeus brown-black); antenna testaceous, except antennomeres 3 and 6–8 and dorsal side of scape and pedicel brown (in specimen from Mozambique, 8 km N of Maúa, antenna black, except articulation between flagellomeres 1 and 2, flagellomere 8, distal half of flagellomere 2 and proximal half of flagellomere 3 whitish; in specimen from Uganda, Kampala, antenna brown, except articulation between flagellomeres 1 and 2, distal third of flagellomere 2, flagellomeres 5 and 8 whitish); propleuron black; pronotum black, except margins slightly reddish; rest of mesosoma black; metasoma brown; legs brown-black, except tarsi testaceous. Antenna clavate; antennomeres in following proportions: 6:3.5:32:19:12:6:6:4.5:4:6. Head dull, granulate and with numerous slight longitudinal keels on frons and vertex; occipital carina complete; lateral ocelli not touching occipital carina, situated behind virtual straight line joining posterior edges of eyes; OPL shorter than OL; POL = OL; TL more than twice as long as POL. In specimen from Kenya, 00°04.364’N 36°97.554’E, POL = 4; OL = 3; OOL = 14; OPL = 1; TL = 9; greatest breadth of lateral ocelli shorter than POL (2:4). In specimen from Central African Republic, 04°03’N 17°02’E, POL = 4, TL = 7. Pronotum dull, granulate, with numerous keels around disc; pronotum crossed by slight anterior transverse impression and strong posterior transverse furrow; anterior collar absent; posterior collar long; pronotal tubercle not reaching tegula. Mesoscutum and mesoscutellum dull, granulate, sculptured by numerous slight longitudinal keels. Notauli incomplete, almost reaching posterior margin of the mesoscutum. Metanotum rugose. Metapectal-propodeal disc reticulate rugose; propodeal declivity reticulate rugose, without longitudinal keels. Forewing with two dark transverse bands; distal part of 2r-rs&Rs vein much longer than proximal part (10:4). Protarsomere 1 slightly longer than 4 (15:13); protarsomere 3 produced into hook. Enlarged claw ( Fig. 141F View FIGURE 141 ) with one large subdistal tooth and one row of 9 lamellae (in specimen from Kenya, 00°04.364’N 36°97.554’E, 8 lamellae + 1 seta). Protarsomere 5 ( Fig. 141F View FIGURE 141 ) with two rows of about 39 lamellae; apex with at least 60 lamellae. Tibial spurs 1/1/1.

♂. Unknown.

Material examined. Type: ♀ holotype: DEMOCRATIC REPUBLIC OF THE CONGO: Kivu, Nialopul , 21.III.1929, A. Collart leg. ( MRAC)   . Other material: BURUNDI: Bururi   , 1♀ ( CAS). CENTRAL AFRICAN RE- PUBLIC: 150 km NWW Mbaiki , 04°03’N 17°02’E, 620 m, 14.VI.2009, J. Halada leg. GoogleMaps   , 1♀ ( OLL). KENYA: Rift Valley Prov., Ol Pejeta Conservancy, 00°04.364’N 36°97.554’E, 1825 m, MT, near Pelican Hse , next to Euclea   stand, 13–27.I.2006, R. Copeland leg.   , 1♀ ( NMK); Rift Valley Prov., Matthews Range , 1.00661°N 37.38631°E, 1006 m, 9–23.I.2016, MT, Sarara campsite, shrubland, R. Copeland leg. GoogleMaps   , 1♀ ( NMK). MOZAMBIQUE: Niassa Prov., approximately 8 km N of Maúa, Coração Sagrado de Jesús de Maúa Mission , reared from and adult of Elasmoscelis cimicoides Spinola, C.   11.XI.1999, B. 12.XI.1999, Sf. 1.XII.1999, M. Olmi reared   , 1♀ ( MOLC) ( Olmi 2004a). UGANDA: Kampala, IV.1936, T.H.C. Taylor leg.   , 1♀ ( NHMUK)   .

Hosts. Lophopidae ( Guglielmino et al. 2013)   : in Mozambique: Elasmoscelis cimicoides Spinola.  

Distribution. Burundi, Central African Republic, Democratic Republic of the Congo, Kenya, Mozambique, Uganda.


Musée Royal de l’Afrique Centrale


California Academy of Sciences


National Museums of Kenya


Natural History Museum, London






Dryinus undulatus (Benoit, 1950)

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van 2019

Dryinus undulatus

Guglielmino, A. & Olmi, M. 2006: 46
Olmi, M. 2004: 357

Richardsidryinus undulatus

Olmi, M. 1984: 919

Lestodryinus undulatus

Benoit, P. L. G. 1950: 226