Netomocera cyanocephala,

Mitroiu, Mircea-Dan, 2019, Revision of Netomocera Bouček (Hymenoptera: Chalcidoidea: Pteromalidae), excluding the Oriental species, European Journal of Taxonomy 568, pp. 1-87: 26-30

publication ID

https://doi.org/10.5852/ejt.2019.568

publication LSID

lsid:zoobank.org:pub:D49AB26D-7276-48A5-BE5A-958E30B81F17

persistent identifier

http://treatment.plazi.org/id/03E6565B-AC57-F57D-FD9E-458308C5FA6F

treatment provided by

Plazi

scientific name

Netomocera cyanocephala
status

sp. nov.

Netomocera cyanocephala  sp. nov.

urn:lsid:zoobank.org:act:2D81D3A2-C148-4606-BA4F-1560395FA013

Figs 41–53View Figs 41–45View Figs 46–51View Figs 52–53

Diagnosis

Both sexes

Head with strong blue-violet reflections ( Figs 42–43View Figs 41–45). Macropterous ( Figs 41View Figs 41–45, 52View Figs 52–53). Clypeal margin very shallowly emarginate, almost straight ( Fig. 44View Figs 41–45). Scrobes shallow and finely reticulate. Upper face and vertex with eight large setae. Pronotal collar not unusually long or wide ( Fig. 47View Figs 46–51). Mesepimeral sulcus conspicuous ( Fig. 46View Figs 46–51). Propodeum without well-defined V-shaped area basally ( Fig. 48View Figs 46–51). Fore wing with basal third extensively setose except for narrow bare region ( Figs 49–51View Figs 46–51). Visible part of petiole very short, distinctly transverse, with more or less obliterate sculpture ( Fig. 48View Figs 46–51).

Female

Fore wing usually with two brownish regions ( Figs 49–50View Figs 46–51), sometimes hyaline ( Fig. 51View Figs 46–51). Occiput margin sharply defined ( Fig. 43View Figs 41–45). Eye height 2.6–2.7× malar space. POL 2.90–3.75 × OOL. Mesoscutum, scutellum and axillae with shallow reticulation ( Fig. 47View Figs 46–51); scutoscutellar sutures deep, distinct; frenal area distinct, i.e., sculpture at least slightly different than on rest of scutellum ( Fig. 47View Figs 46–51). Setation of mesonotum not unusually dense and conspicuous ( Fig. 47View Figs 46–51). MV 4–5 × SV.

Male

Mesosoma uniformly dark brown to black ( Fig. 52View Figs 52–53).

Etymology

The name of the species (adjective) refers to the distinct bluish colouration of the head.

Material examined

Holotype

PAPUA NEW GUINEA • ♀; “ PAPUA N. GUINEA, Mt. Hagen 1600 m, 17.XII.82. Bouček”; entire, on rectangular card; BMNH. 

Allotype

PAPUA NEW GUINEA • ♂; same data as for holotype; BMNH. 

Additional paratypes

PAPUA NEW GUINEA • 1 ♀; same data as for holotype; “ Netomocera  ”; BMNH  4 ♂♂; same data as for holotype; BMNH  2 ♂♂; same data as for holotype; “ 15.XII.82 ”; BMNH  1 ♀; “ PAPUA N.  GUINEA, Lae , 16.xii.82. Bouček ”; BMNH  .

Description

Female (habitus: Fig. 41View Figs 41–45)

COLOUR. Head ( Figs 42–43View Figs 41–45) black, with conspicuous blue-violet reflections on upper face and vertex. Mandibles brown. Antenna ( Fig. 45View Figs 41–45) with scape whitish except brownish apically; pedicel and flagellum brown. Mesosoma ( Figs 46–48View Figs 46–51) blackish except for dark reddish-brown pronotal panels and neck. Legs with fore coxa usually reddish-brown, mid and hind coxae darker, occasionally all coxae dark brown; femora and tibiae yellowish to brown, occasionally hind femur lighter that fore or mid femora; tarsi pale yellow to dark yellow, pretarsi brown. Fore wing ( Figs 49–51View Figs 46–51) hyaline or with two large brownish regions, one behind marginal vein, the other behind stigma, of variable intensity; venation brown; setation brown. Hind wing hyaline. Metasoma ( Fig. 41View Figs 41–45) with petiole black; gaster mainly dark brown. Body setation light brown except for several large, symmetrically arranged dark brown setae.

BODY LENGTH. 1.80–2.25 mm.

HEAD. Clypeus virtually smooth; apical margin very slightly emarginate, almost straight ( Fig. 44View Figs 41–45). Lower face coriaceous to shallowly reticulate, with piliferous punctures more or less distinct. Upper face reticulate and vertex shallowly reticulate to coriaceous ( Fig. 43View Figs 41–45); scrobes shallow, reticulate; parascrobal region with elongate cells ( Fig. 42View Figs 41–45). Occiput alutaceous; margin sharply defined ( Fig. 43View Figs 41–45). Toruli with lower margins from about level with to slightly above lower margins of eyes ( Fig. 42View Figs 41–45). Antenna ( Fig. 45View Figs 41–45) with funicle strongly widening towards clava, with clava conspicuously asymmetric. Upper face and vertex with eight large setae. Head in dorsal view with width about 2.3 × length (47.5:20.5) and in frontal view 1.20–1.25 × height (47.5:40.0). POL 2.90–3.75 × OOL (15:4). Eye height about 1.4× length (26:18), 2.6–2.7× malar space (26:10) and about 1.1× scape length (26:23). Head width 0.9–1.0 × length of pedicel plus flagellum (47.5:47.0). Fu1 length about 1.4–2.0 × width (5.0:3.5); fu7 width 1.2–1.4 × length (6:5); clava length about 2.3–2.7 × width (19:8).

MESOSOMA. Pronotal collar narrower than mesoscutum, with six large setae ( Fig. 47View Figs 46–51). Mesonotum moderately setose dorsally ( Fig. 47View Figs 46–51). Pronotal collar dorsally, mesoscutum and axillae shiny, shallowly reticulate, with origins of setae sometimes visible as small punctures ( Fig. 47View Figs 46–51). Scutellum reticulate, except for coriaceous and more or less longitudinally striate frenal area ( Fig. 47View Figs 46–51). Upper mesepisternum mainly smooth; lower mesepisternum mainly punctulate-reticulate, occasionally transversally striate ( Fig. 46View Figs 46–51). Mesepimeron mainly smooth; mesepimeral sulcus conspicuous ( Fig. 46View Figs 46–51). Propodeum with intricate pattern of carinae, interspaces mainly smooth ( Fig. 48View Figs 46–51). Macropterous; fore wing uniformly and densely setose except for small, elongate bare region ( Figs 49–51View Figs 46–51). Mesosoma length 1.25–1.30 × width (50:40) and 1.35–1.50 × height (50:37). Pronotal collar 0.3–0.4× as long as mesoscutum (5:13) and about 0.8× as wide as mesoscutum (31:40). Mesoscutum width 2.95–3.10 × length (40:13). Scutellum length about 0.9–1.0 × width (22:24). Propodeum length about 0.6× scutellum length (13:22). Fore wing length about 2.4× width (112:47); MV about 4–5 × SV (33:7) and about 2.0–2.6 × PV (33:15).

METASOMA. Petiole barely visible, transverse, smooth except for a few superficial longitudinal striae ( Fig. 48View Figs 46–51). Gaster ovate, length about 1.8–2.0 × width (55:30); gt1 longest, width 0.85–0.90× length (30:35), with hind margin produced; gt2–5 almost not visible, retracted; gt6 broadly triangular; syntergum acutely pointed. Ovipositor sheaths slightly protruding beyond apex of gaster ( Fig. 41View Figs 41–45). Cercal setae surpassing apex of gaster.

Male (habitus: Fig. 52View Figs 52–53)

Differs from female mainly as follows. Body length: 1.0– 1.8 mm. Head sometimes with weak to indistinct bluish reflections. Mesosoma and part of gaster in very small specimens orange-brown. Scape reddish-brown to brown. Fore wing always without brown spots ( Fig. 52View Figs 52–53). Toruli with lower margins above lower margins of eyes. Antenna ( Fig. 53View Figs 52–53) with fu1 length about 2.0–3.1× width; combined length of pedicel plus flagellum about 2.3–2.6× head width. Gaster, when not inflated, much shorter than mesosoma, with only gt1 visible ( Fig. 52View Figs 52–53).

Distribution

Papua New Guinea.

Remarks

The variability of the fore wing colouration of females is remarkable ( Figs 49–51View Figs 46–51) and seems to be correlated with leg pigmentation because females with brownish spots on the wings also have darker legs, whereas females with hyaline wings have lighter legs. Due to the following reasons I decided to treat the two different forms of females as a single species, although future molecular studies may prove differently: (1) no additional characters were found to separate them; (2) there is a variation in the colour intensity of the brownish spots; (3) they seem to be sympatric; (4) their respective males are indistinguishable. Netomocera cyanocephala  sp. nov. seems closest to N. ramakrishnai  , at least the females being separated mainly by body colour and antennal structure.