Gonatopus minutus 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 : 519-520

97. Gonatopus minutus Olmi, Copeland & van Noort , sp. nov.

( Figs 221 , 228B , 233C )

Diagnosis. Apterous ♀ of Gonatopus with body small (1.9 mm), totally yellow-testaceous, except petiole black ( Fig. 228B ); palpal formula 5/3; pronotum crossed by strong transverse furrow; mesoscutum less than 3 × as long as broad, with two lateral pointed prominences; meso-metapleural suture obsolete; protarsomere 1 as long as 4; enlarged claw ( Fig. 233C ) with one small subapical tooth; protarsomere 5 ( Fig. 233C ) with two rows of lamellae situated in distal half.

Description. ♀ ( Figs 221 , 228B ). Apterous; body length 1.9 mm. Totally yellow-testaceous, except petiole black and antenna brown, except scape and pedicel testaceous and flagellomeres 7–8 whitish. Antenna clavate; antennomeres in following proportions: 8:3:7:4:3:3:4:3:2:4. Head ( Fig. 221A, D ) slightly excavated, shiny, unsculptured; frontal line complete; occipital carina absent; POL = 1; OL = 1; OOL = 4.5. Palpal formula 5/3. Pronotum crossed by strong transverse impression, shiny, unsculptured. Mesoscutum shiny, unsculptured, laterally with two small pointed apophyses ( Fig. 228B ). Mesoscutellum shiny, unsculptured, almost flat. Metanotum short, unsculp- tured, about coplanar to mesoscutellum ( Figs 221B ). Metapectal-propodeal disc shiny, unsculptured; propodeal declivity transversely striate. Mesopleuron and metapleuron shiny, unsculptured. Meso-metapleural suture obsolete. Protarsomeres in following proportions: 8:2:3:8:13. Enlarged claw ( Fig. 233C ) with one small subapical tooth and two peg-like setae. Protarsomere 5 ( Fig. 233C ) with two rows of 3 + 11 lamellae situated in distal half; apex with approximately nine lamellae. Tibial spurs 1/0/1.

♂. Unknown.

Material examined. Type: ♀ holotype (CASTYPE19466): MADAGASCAR: Toliara, Lake Ranobe , 23°02.21’S 43°36.42’E, 30 m, 25–28.IV.2003, sifted litter (leaf mold, rotten wood), spiny forest thicket, MGF064 , Frontier Wilderness Project (CAS).

Hosts. Unknown.

Distribution. Madagascar.

Etymology. The name of the species derives from the Latin adjective minutus, meaning very small.

Figures

FIGURE 221. Gonatopus minutus Olmi, Copeland & van Noort sp. nov., ♀ holotype: habitus in dorsal (A) and lateral (B) view; head and mesosoma in dorsal view (C); head in frontal view (D).

FIGURE 228. Habitus of Gonatopus species. A: G. martellii Olmi, ♀ holotype in dorsal view. B: G. minutus Olmi, Copeland & van Noort sp. nov.: ♀ holotype in dorsal (B) view; head and mesosoma sculpture. Scale bar: A: 1.99 mm.

FIGURE 233. Chelae of Gonatopus species holotypes. A: G. masoalensis Olmi. B: G. meridionalis (Benoit). C: G. minutus Olmi, Copeland & van Noort sp. nov. D: G. mirus Olmi & van Harten. E: G. mosseli Olmi. Scale bar: A, B: 0.06 mm; B: 0.05 mm; C, D: 0.07 mm.