Madecadryinus semicaecus Olmi, 2007

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 587-588

6. Madecadryinus semicaecus Olmi, 2007

( Figs 261D, E, G , 262B, C )

Madecadryinus semicaecus Olmi 2007c: 29 ; Azevedo et al. 2010: 885.

Description. ♀ ( Figs 262B, C ). Apterous; body length 1.7–2.1 mm. Head black, except clypeus and mandible testaceous; antenna testaceous; mesosoma black, except lateral margin of apparent pronotum and distal extremity of propodeal declivity testaceous; metasoma brown, except distal half testaceous; legs testaceous. Antenna ( Figs 262B, C ) clavate, thickened; antennomeres of holotype in following proportions: 10:3.5:2:2.5:2.5:2.5:2.5:2:2:6; antennomeres 1 and 10 longer than broad; antennomeres 3–9 broader than long (length/breadth ratio of antennomere 9 in lateral view: 3.5:2; antennomere 6 broader than long: 3:2.5); antennomere 2 slightly longer than broad; ADOs present in antennomeres 4–10; antennal toruli contiguous with lateral margins of clypeus. Head rectangular in dorsal view, broader than long (25:20), shiny, covered with short and fine setae, finely punctate, unsculptured among punctures; vertex of head flat; frons very convex ( Figs 261D , 262C ); eye very small, much shorter than head (2: 20 in dorsal view); ocelli absent; occipital carina distinct, complete on dorsal region of head, incomplete on lateral regions of head; frontal line absent; clypeus with ventral margin rounded; temple very long, almost six × as long as eyes (13:2) ( Fig. 261D ); subocular sulcus absent. Palpal formula 2/2. Propleuron apparently mobile and articulated, hidden under apparent pronotum. Remaining regions of mesosoma 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. Mesosoma ( Figs 262B, C ) 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 declivity) and posterior inclined region (corresponding to propodeal declivity); in anterior dorsal region no sutures dorsally visible, except suture separating dorsal region from lateral regions (suture incomplete, being absent in anterior third of dorsal region (probably corresponding to pronotum)) ( Fig. 261E ); posterior inclined region completely surrounded by strong keel separating it from anterior dorsal region and from lateral regions of mesosoma; anterior dorsal regions and posterior inclined region completely unsculptured, except few transverse striae near apex of posterior region. Protarsomeres in following proportions: 7:2:2:5:9. Protarsomere 3 produced into hook. Enlarged claw ( Fig. 261G ) without subapical teeth (only with tracks of three small teeth), with 11 bristles and many setae on outer side. Protarsomere 5 ( Fig. 261G ) with two rows of 3 + 10 lamellae; apex with five lamellae. Tibial spurs 1/0/1.

♂. Unknown.

Material examined. Type: ♀ holotype: MADAGASCAR: Antananarivo, Ambohitantely Special Reserve, Ambohitantely Forest , 24.1 km 59° NE of Ankazobe, 18°10.17’S 47°16.55’E, 1620 m, 17–22.IV.2001, in botanical garden, sifted litter in montane rainforest, Fisher, Griswold et al. leg., BLF3720 ( CAS). Paratypes: MADA- GASCAR: same locality label as holotype , 2♀♀ ( CAS, MOLC); Toamasina, Analamay, 18°48.22’S 48°20.13’E, 1068 m, 21.III.2004, sifted litter (leaf mold, rotten wood), montane rainforest, Malagasy ant team, BLF 10502 , 2♀♀ ( CAS). Other material: MADAGASCAR: Fianarantsoa, Vevembe Forest, 66.6 km 293° WNW Farafangana, 22°47.28’S 47°10.55’E, 600 m, 23.IV.2006, maxi Winkler litter extraction, rainforest transitioning to montane forest, BLF14120, B.L. Fisher et al. leg ., 2♀♀ ( CAS, MOLC) .

Hosts. Unknown.

Distribution. Madagascar.

Figures

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.