Madecadryinus relictus Olmi, 2007

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 584-587

5. Madecadryinus relictus Olmi, 2007

( Figs 257D, E , 260 A–D, 261 A–C)

Madecadryinus relictus Olmi 2007c: 26 ; Azevedo et al. 2010: 885.

Description. ♀ ( Figs 257D, E , 260A, B ). Apterous; body length 1.6–2.0 mm. Head black, except clypeus and mandible testaceous; antenna testaceous; mesosoma black, except lateral margin of apparent pronotum testaceous; apparent mesothorax black, except small region near mesocoxa testaceous; metasoma brown, except distal half testaceous; legs testaceous. Antenna ( Figs 257D, E , 260A, B ) clavate, thickened; antennomeres of holotype in following proportions: 7:2:2:2.5:2.5:2.5:2.5:2.5:2.5:7; antennomeres 1 and 10 longer than broad; antennomeres 3–9 broader than long (length/breadth ratio of antennomere 9 in lateral view: 3.5:4.5; in dorsal view: 2:4; antennomere 6 broader than long: 3.5:2.5); antennomere 2 approximately as long as broad; ADOs present in antennomeres 4–10; antennal toruli contiguous with lateral margins of clypeus. Head rectangular in dorsal view ( Figs 257D , 260A ), broader than long (23:18), shiny, covered with short and fine setae, finely punctate, unsculptured among punctures; vertex of head flat; frons very convex ( Figs 257E , 260B ); eye very small, much shorter than head (3: 17 in dorsal view); ocelli absent; occipital carina distinct, complete on dorsal region of head, incomplete on lateral regions of head; frontal line absent; mandible with three teeth; clypeus with ventral margin rounded; temple very long, almost 4 × as long as eye (11:3) ( Fig. 260A ); subocular sulcus absent. Palpal formula 2/2. Propleuron apparently mobile and articulated, hidden under apparent pronotum. Remaining regions of mesosoma ( Figs 257D, E , 260A, B ) completely fused with no sutures separating fused regions; laterally two incomplete sutures visible (suture between apparent pronotum and mesothorax and meso-metapleural suture); above two sutures incomplete and only partly visible on lateral regions of mesosoma (upper third of meso-metapleural suture absent). Mesosoma ( Figs 257D, E , 260A, B ) shiny, covered with fine and short setae, finely punctate, unsculptured among punctures; mesosoma cylindric and divided into two regions (anterior flat dorsal region (corresponding to pronotum, mesonotum, metanotum and metapectal-propodeal disc) and posterior inclined region (corresponding to propodeal declivity)); in anterior dorsal region, no sutures dorsally visible, except suture ( Fig. 261A ) separating dorsal region from lateral regions (suture incomplete, being absent in anterior third of dorsal region (probably corresponding to pronotum) and from propodeal ocelli and lateral corners of keel surrounding posterior inclined region of mesosoma); posterior inclined region completely surrounded by strong keel separating it from anterior dorsal region and from lateral regions of mesosoma; posterior inclined region completely unsculptured, except few transverse striae near apex of posterior region. Protarsomeres in following proportions: 7:2:2:4.5:7.5. Protarsomere 3 produced into hook. Enlarged claw of holotype ( Fig. 261B ) without subapical teeth (tracks of small teeth visible), with three proximal bristles and many setae on outer side; enlarged claw of paratype from Madagascar, 18°10.17’S 47°16.55’E, with long row of 11 bristles and three small teeth. Protarsomere 5 of holotype ( Fig. 261B ) with two rows of 2 + 9 lamellae (in paratype from Madagascar, 18°10.17’S 47°16.55’E, protarsomere 5 with two rows of 3 + 10 lamellae).Apex of protarsomere 5 with five lamellae. Tibial spurs 1/0/1.

♂ ( Figs 260C, D , 261C , 262A ). Fully winged; body length 1.6 mm. Head black, except mandible testaceous (with teeth dark) and clypeus testaceous-dark; antenna testaceous-darkened; mesosoma black; metasoma brown; legs yellow, except metacoxa and club of metafemur brown. Antenna filiform, very slender and long, much longer than body ( Fig. 260C ); antennomeres in following proportions: 5.5:4.5:9:11:10:10.5:10:10:10:10. Head convex ( Fig. 260D ), shiny, unsculpured; occiput very concave, unsculptured; frontal line absent; central area of frons with slight short median longitudinal furrow; occipital carina complete; ocelli small ( Figs 260C , 262A ); POL = 4.5; OL = 2.5; OOL = 3.5; minimum distance from eyes to occipital carina shorter than OL (2:2.5); TL = 4.5; lateral ocelli touching occipital carina; temples very long, shorter than eyes (4.5:7); clypeus with short median longitudinal keel; mandible with four irregular teeth. Palpal formula 6/3. Mesoscutum dull, completely granulate. Notauli complete, posteriorly separated; minimum distance between notauli twice as long as greatest breadth of lateral ocelli (4:2). Mesoscutellum and metanotum shiny, unsculptured. Epicnemium exposed. Metapectal-propodeal disc and propo-deal declivity reticulate rugose, with areolae at least partly as large as tegulae. Forewing with slight dark transverse band; distal part of 2r-rs&Rs vein longer than proximal part (15:10); 2R1 cell open. Hind wing hyaline, without dark transverse band. Paramere ( Fig. 261C ) without inner apical and pointed expansion; basivolsella with apex parallel to distivolsella ( Fig. 261C ). Tibial spurs 1/1/2.

Material examined. Type: ♀ holotype: MADAGASCAR: Toamasina, F.C. Sandranantitra , 18°02.9’S 49°05.5’E, 450 m, sifted litter (leaf mold, rotten wood), rainforest, 18–21.I.1999, H. J. Ratsirarson leg. 101 ( CAS). Paratype: MADAGASCAR: Toamasina, F.C. Sandranantitra , 18°02.9’S 49°05.5’E, 450 m, sifted litter (leaf mold, rotten wood), rainforest, 18–21.I.1999, H. J. Ratsirarson leg., 101 , 1♂ ( CAS). Other material: MADAGASCAR: Fianarantsoa, Manombo Special Reserve camp site, 33 km SSE of Farafangana , 23°01.31’S 47°43.20’E, 36 m, 24.VI–10.VII.2005, MT, lowland rainforest, M. Irwin, R. Harin’Hala leg., MA-28-22 , 1♂ ( MOLC); Toamasina, Betampona Reserve, Camp Rendrirendry, 34.1 km 332° Toamasina, 17°55.26’S 49°11.59’E, 390 m, 28.XI.2005, sifted litter, rainforest, Brian L. Fisher leg., BLF13125 , 2♀♀ ( CAS, MOLC) .

Hosts. Unknown.

Distribution. Madagascar.

Figures

FIGURE 257. Habitus of Madecadryinus species. A: M. humicolus Olmi: ♀ holotype in dorsal view. B: M. opacus Olmi: ♀ holotype in dorsal view. C: M. politus Olmi: ♀ holotype in dorsal view. D, E: M. relictus Olmi: ♀ holotype in dorsal (D) and lateral (E) view.

FIGURE 260. Madecadryinus relictus Olmi: A, B: ♀ holotype in dorsal (A) and lateral (B) view; ♂ paratype in dorsal (C) and lateral (D) view. Scale bar: A: 1.54 mm; B: 1.17 mm; C: 1.74 mm; D: 1.25 mm.

FIGURE 261. A–C: Madecadryinus relictus Olmi: A: head and mesosoma of ♀ holotype in lateral view (A); chela of holotype (B); genitalia of ♂ paratype (C). D, E, G: Madecadryinus semicaecus Olmi: head of ♀ holotype in lateral view (D); head and mesosoma of ♀ holotype in lateral view (E); chela of holotype (G). F: Madecadryinus silvanus Olmi: genitalia of ♂ from Mada- gascar, 16°27.18’S 49°47.15’E. Scale bar: A: 0.77 mm; B: 0.05 mm; C: 0.10 mm; D, F: 0.12 mm; E: 0.43 mm; G: 0.04 mm.

FIGURE 262. Habitus of Madecadryinus species. A: M. relictus Olmi: ♂ from Madagascar, 23°01.31’S 47°43.20’E, in dorsal view. B, C: M. semicaecus Olmi: ♀ holotype in dorsal (B) and lateral (C) view. D: M. silvanus Olmi: ♂ holotype in dorsal view. Scale bar: A: 1.88 mm; D: 2.66 mm.