Madecadryinus humicolus Olmi, 2007

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 579-580

1. Madecadryinus humicolus Olmi, 2007

( Figs 257A , 258A, B )

Madecadryinus humicolus Olmi 2007c: 23 ; Azevedo et al. 2010: 885.

Description. ♀ ( Fig. 257A ). Apterous; body length 1.4–2.2 mm. Head black, except clypeus and mandible testa- ceous; antenna testaceous; mesosoma black, except lateral margin of apparent pronotum and distal extremity of propodeal declivity testaceous; metasoma brown, except distal half testaceous; legs brown, except tarsi and meso- and metatibia testaceous. In two paratypes from Madagascar, 18°13.31’S 47°17.13’E and 18°28.24’S 47°57.36’E, legs testaceous, except metacoxa partly brown. Antenna ( Fig. 257A ) clavate, thickened; antennomeres of holotype in following proportions: 10:3.5:1:3:3.5:3.5:3.5:3.5:3.5:5; antennomeres 1 and 10 longer than broad; antennomeres 3– 9 longer than broad (length/breadth ratio of antennomere 9 in lateral view: 3.5:3; antennomere 6 longer than broad: 3.5:2); antennomere 2 longer than broad (3.5:2); ADOs present in antennomeres 4–10; antennal toruli contiguous with lateral margins of clypeus. Head rectangular in dorsal view ( Fig. 257A ), slightly longer than broad (20:19), shiny, covered with short and fine setae, finely punctate, unsculptured among punctures; vertex of head flat; frons very convex ( Fig. 258A ); eye ( Fig. 258A ) very small, much shorter than head (3: 20 in dorsal view); ocelli absent; occipital carina distinct, complete on dorsal region of head, incomplete on lateral regions; frontal line absent; clypeus with ventral margin rounded; temple very long, about 3 × as long as eye (10:3); 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 sutures visible, suture between apparent pronotum and mesothorax and meso-metapleural suture (sutures complete, their upper third or fourth being thiner than rest of sutures). In two paratypes from Madagascar, 18°13.31’S 47°17.13’E and 18°28.24’S 47°57.36’E, and in five paratypes from Madagascar, 13°07.06’S 49°13.48’E, lateral suture between apparent pronotum and mesothorax incomplete, upper third being absent. Mesosoma 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 separating dorsal region from lateral regions (suture incomplete, being absent in anterior third of dorsal region (probably corresponding to pronotum)) ( Fig. 257A ); propodeal declivity completely surrounded by strong keel separating it from metapectal-propodeal disc and from lateral regions of mesosoma; propodeal declivity finely punctate, unsculptured among punctures, with few transverse striae near apex. Protarsomeres in following proportions: 8:2:2:7:9. Protarsomere 3 produced into hook. Enlarged claw ( Fig. 258B ) without subapical teeth (with tracks of three small teeth), with eight very slender lamellae and many setae on outer side. Protarsomere 5 ( Fig. 258B ) with two rows of 4 + 10 lamellae; apex with four lamellae. Tibial spurs 1/0/1.

♂. Unknown.

Material examined. Types: ♀ holotype: MADAGASCAR: Antsiranana, Binara Forest , 9.1 km 233° SW Da- raina, 13°15.48’S 49°36.12’E, 650–800 m, 3.XII.2003, sifted litter (leaf mold, rotten wood), rainforest, B.L. Fisher leg. , code BLF 9656, ( CAS). Paratypes: MADAGASCAR: Antananarivo, Ambohitantely Special Reserve, Ambohitantely Forest , 20.9 km 72° NE of Ankazobe, 18°13.31’S 47°17.13’E, 1410 m, 17–22.IV.2001, sifted litter in montane rainforest, Fisher, Griswold et al. leg., BLF3694 , 1♀ ( CAS); Antananarivo, 3 km 41°NE of Andranomay, 11.5 km 147° SSE of Anjozorobe, 18°28.24’S 47°57.36’E, 1300 m, 5–13.XII.2000, montane rainforest, sifted litter, Fisher, Griswold et al. leg., BLF 2378 , 1♀ ( MOLC); Antsiranana, Andavakoera Forest , 21.4 km 75° ENE Ambilobe, 4.6 km 356° N Betsiaka, 13°07.06’S 49°13.48’E, 425 m, 15.XII.2003, sifted litter (leaf mold, rotten wood), rainforest, B.L. Fisher leg., BLF10260 , 5♀♀ (4 in CAS, 1 in MOLC). Other material: MADAGASCAR: Antsiranana, Binara Forest , 7.5 km 230° SW Daraina, 13°15.18’S 49°37.00’E, 375 m, 1.XII.2003, MT, tropical dry forest, B.L. Fisher leg. , BLF 9556, 1♀ ( CAS); Antsiranana, Sakalava Beach , 12°15.46’S 49°23.51’E, 10 m, 15.II–6.III.2001, dwarf littoral forest, MT, across sandy trail, MA-01-04B-03, M.E. Irwin & R. Harin’Hala leg. , 1♀ ( CAS) .

Hosts. Unknown.

Distribution. Madagascar.

Remarks. The two paratypes of M. humicolus from Antananarivo Province. are very similar to the holotype, though they have legs that are differently coloured.

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 258. A, B: Madecadryinus humicolus Olmi, ♀ holotype: head in lateral view (A); chela (B). C, D: Madecadryinus opacus Olmi, ♀ holotype: head in lateral view (C); chela (D). E, G: Madecadryinus politus Olmi, ♀ holotype: head in lateral view (E); chela (G). F, H: Madecadryinus ranomafanensis Olmi, Copeland & van Noort sp. nov., ♂ holotype: head in dorsal view (F); genitalia (H). Scale bar: A: 0.13 mm; B, D: 0.03 mm; C, H: 0.08 mm; E: 0.15 mm; F: 0.17 mm; G: 0.04 mm.