Madecadryinus Olmi, 2007

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 578-579

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https://doi.org/ 10.11646/zootaxa.4630.1.1

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scientific name

Madecadryinus Olmi, 2007
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21. Genus Madecadryinus Olmi, 2007

Madecadryinus Olmi 2007c: 17 ; Azevedo et al. 2010: 885.

Type species. Madecadryinus relictus Olmi 2007 , by monotypy and original designation.

Diagnosis. ♀: apterous ( Figs 257A View FIGURE 257 , 260A View FIGURE 260 ): palpal formula 2/2; maxillary palpi smaller than labial palpi; an- tenna geniculated; antennomeres 4–10 with ADOs (one per antennomere, except two ADOs in 10 th antennomere); occipital carina incomplete (complete on dorsal side of head and incomplete on temple); ocelli absent; mesosoma ( Figs 257A View FIGURE 257 , 260A View FIGURE 260 ) composed almost completely of fused segment; only propleura mobile and articulated; rest of mesosoma laterally with incomplete suture between pronotum and mesothorax and incomplete meso-metapleural suture; posterior surface of mesosoma (corresponding to propodeal declivity) completely surrounded by strong suture; anterior dorsal region of mesosoma (corresponding to pronotum + mesonotum + metanotum + metapectalpropodeal disc) laterally with incomplete suture (always absent in anterior third and occasionally absent behind propodeal spiracles); apparent pronotum not crossed by transverse impression ( Figs 257A View FIGURE 257 , 260A View FIGURE 260 ); epicnemium concealed; enlarged claw ( Fig. 258B View FIGURE 258 ) with small subapical and medial teeth and few bristles or slender lamellae (occasionally without teeth ( Fig. 261B View FIGURE 261 )); protarsomere 5 ( Figs 258B View FIGURE 258 , 261B View FIGURE 261 ) with rows of lamellae; tibial spurs 1/0/1. ♂ ( Figs 259 View FIGURE 259 , 260C View FIGURE 260 ): fully winged; forewing with C, R and 1Cu cells completely enclosed by pigmented veins; palpal formula 6/3; antenna very long, much longer than body; mandible with four irregular teeth; occipital carina complete; temple very long, much shorter than eye ( Fig. 260C View FIGURE 260 ); occiput deeply excavated ( Fig. 259 View FIGURE 259 ); minimum distance between eyes and occipital carina much shorter than OOL ( Fig. 260C View FIGURE 260 ); epicnemium exposed; notauli complete; paramere without inner slender membranous process ( Fig. 258H View FIGURE 258 ); tibial spurs 1/1/2.

Distribution. Afrotropical region.

Hosts. Unknown.

World species. Seven species are known, all in the Afrotropical region.

Remarks. Based on the presence of an incomplete suture that is only laterally visible between the pronotum and mesothorax in ♀♀, the genus Madecadryinus is very similar to the Neotropical genus Apodryinus Olmi 1984 (in contrast the Australian genus Bocchopsis Olmi 1991 has the suture between pronotum and mesothorax complete and visible not only laterally, but also dorsally). The main differences between Apodryinus and Madecadryinus are in respect of the meso-metapleural suture (completely absent in Apodryinus , laterally partly present in Madecadryinus ), the occipital carina (absent in Apodryinus , almost complete in Madecadryinus ), the shape of the head (spheroidal in Apodryinus , cuboidal in Madecadryinus ), the eye (larger in Apodryinus , smaller in Madecadryinus ), the palpal formula (4/ 3 in Apodryinus , 2/ 2 in Madecadryinus ), the shape of the antennae (slenderer in Apodryinus , more thickened in Madecadryinus ), the ADOs (present in antennomeres 3–10 in Apodryinus , in 4–10 in Madecadryinus ), the enlarged claw (with lamellae and one subapical tooth in Apodryinus , with bristles or very slender lamellae and with small subapical and medial teeth in Madecadryinus ). Based on the absence of an inner slender process of the parameres, the ♂ of Madecadryinus is more similar to the ♂♂ of Apodryinus than those of Bocchopsis .

Key to species of Madecadryinus

♀♀ (unknown in M. ranomafanensis and M. silvanus )

1. Lateral suture of dorsal surface of mesosoma not present from propodeal spiracles to lateral corners of keel surrounding posterior inclined region ( Fig. 261A View FIGURE 261 )............................................................. M. relictus Olmi

- Lateral suture of dorsal surface of mesosoma present from propodeal spiracles to lateral corners of keel surrounding posterior inclined region ( Fig. 261E View FIGURE 261 )............................................................................. 2

2. Eye very small ( Fig. 261D View FIGURE 261 ); head more than eight × as long as eye............................... M. semicaecus Olmi

- Eye larger ( Figs 258A, C View FIGURE 258 ); head less than eight × as long as eye................................................ 3

3. Antenna slender ( Fig. 257A View FIGURE 257 ), with antennomere 6 longer than broad.............................. M. humicolus Olmi

- Antenna thicker ( Figs 257B, C View FIGURE 257 ), with antennomere 6 about as long as broad...................................... 4

4. Head and anterior surface of mesosoma dull, granulate........................................... M. opacus Olmi

- Head and anterior surface of mesosoma shiny, finely punctate and unsculptured among punctures......... M. politus Olmi

♂♂ (unknown in M. humicolus , opacus , politus and semicaecus )

1. Mesoscutum unsculptured or finely punctate and unsculptured among punctures ( Fig. 262D View FIGURE 262 ); ocelli large ( Fig. 262D View FIGURE 262 )............................................................................................ M. silvanus Olmi

- Mesoscutum granulate; ocelli small or large ( Figs 259 View FIGURE 259 , 262A View FIGURE 262 )................................................. 2

2. POL less than twice as long as OOL ( Fig. 260C View FIGURE 260 )................................................ M. relictus Olmi

- POL about 3 × as long as OOL ( Fig. 258F View FIGURE 258 ).................. M. ranomafanensis Olmi, Copeland & van Noort , sp. nov.

Azevedo, C. O., Madl, M. & Olmi, M. (2010) A Catalogue of the Bethylidae, Chrysididae, Dryinidae, Embolemidae, Sclerogibbidae and Scolebythidae (Hymenoptera: Chrysidoidea) of the Malagasy Subregion. Linzer biologische Beitrage, 42, 845 - 918.

Olmi, M. (1984) A revision of the Dryinidae (Hymenoptera). Memoirs of the American Entomological Institute, 37, I-XII + 1 - 1913.

Olmi, M. (1991 [ 1989 ]) Supplement to the revision of the world Dryinidae (Hymenoptera Chrysidoidea). Frustula entomologica, New Series, 12, 109 - 395.

Olmi, M. (2007 c) Apodryininae of Madagascar and South Africa (Hymenoptera: Dryinidae). Frustula entomologica, New Series, 30, 1 - 46.

Gallery Image

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.

Gallery Image

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.

Gallery Image

FIGURE 259. Madecadryinus ranomafanensis Olmi, Copeland & van Noort sp. nov., ♂ holotype: habitus in dorsal (A) and lateral (B) view; head in frontal view (C); forewing (D).

Gallery Image

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.

Gallery Image

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.

Gallery Image

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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

SuperFamily

Chrysidoidea

Family

Dryinidae

SubFamily

Gonatopodinae