Discovery of the transantarctic distribution of the genus Metanteon Olmi (Hymenoptera: Dryinidae), with description of a new species from New Caledonia
Author
Speranza, Stefano
Author
Olmi, Massimo
Author
Guglielmino, Adalgisa
Author
Capradossi, Leonardo
Author
Contarini, Mario
text
Zootaxa
2019
2019-11-07
4695
2
189
194
journal article
24940
10.11646/zootaxa.4695.2.9
179c5d36-13f1-4e49-b207-2ab71c406622
1175-5326
3531312
6E6BD867-A4AA-4597-BBD1-380AF2002892
Metanteon poirieri
sp. nov.
(
Figures 1–4
)
Type material
.
Holotype
:
♀
:
NEW CALEDONIA
:
Bopope
,
Katalupaik
, KAT8-MAL-2A,
20.83429S
165.00702E
,
783 m
,
14–29.X.2017
,
E. Poirier
leg., N° 60912–
2001–2017
/JJC,
Expédition La Planète Revisitée
,
MNHN-PNI
,
NC-TR2
2037 (
MNHN
).
Diagnosis
. Fully winged female (
Figs 1, 2
); palpal formula 6/3; 2r-rs&Rs vein of forewing with distal part much longer than proximal part (
Figs 1, 2
); protarsus chelate (
Fig. 2
); chela without rudimentary claw (
Fig. 4
); enlarged claw without subapical tooth, with inner side provided with one row of six small lamellae (
Fig. 4
); tibial spurs 1/1/2.
FIGURES 1–3
.
Metanteon poirieri
, female holotype. 1, 2, habitus in dorsal (1) and lateral (2) view; 3, head in dorsal view. Scale bar 2.2 mm (1, 2), 0.5 mm (3).
FIGURE 4
.
Metanteon poirieri
, female holotype: chela. Scale bar 0.3 mm.
Description of female
holotype
. Fully winged (
Figs 1, 2
); length
3.9 mm
. Head black, except mandible brown; antenna brown, except ventral side of scape whitish; mesosoma black; metasoma brown; legs testaceous, except part of coxae and clubs of femora brown. Antenna slightly clavate, without ADOs; antennomeres in following proportions: 12:4:16:12:10:10:9:9:8:13. Head (
Fig. 3
) shiny, slightly swollen, punctate, unsculptured among punctures, more strongly punctate on frons; frontal line complete, more protruding in anterior third of frons; occipital carina complete, laterally not reaching eyes; POL = 1.6; OL = 1.1; OOL = 3.2; OPL = 3.5; TL = 1.7. Palpal formula 6/3. Pronotum shiny, with disc punctate, unsculptured among punctures; anterior collar rugose; pronotal tubercle reaching tegula. Mesoscutum shiny, punctate, unsculptured among punctures. Notauli incomplete, reaching about 0.8 × length of mesoscutum (
Fig. 1
). Mesoscutellum shiny, slightly punctate, unsculptured among punctures. Metanotum shiny, unsculptured. Metapectal-propodeal complex dull, reticulate rugose, without transverse or longitudinal keels. Mesopleuron dull, partly rugose and partly punctate. Metapleuron dull, reticulate rugose. Forewing hyaline, without dark transverse bands (
Figs 1, 2
); 2R1 cell open; 2r-rs&Rs vein with distal part much longer than proximal part (25:12). Protarsomeres in following proportions: 12:3:4:24:34. Protarsomere 2 produced into hook. Enlarged claw (
Fig. 4
) without subapical teeth, with one row of six small lamellae (shorter than enlarged claw breadth). Protarsomere 5 (
Fig. 4
) with two rows of about 42 lamellae; distal apex with group of 11 lamellae, one of which very long. Rudimentary claw absent. Tibial spurs 1/1/2.
Male
. Unknown.
Hosts
. Unknown, but probably leafhoppers (Hemiptera: Auchenorrhyncha) feeding on
Nothofagus
(see final discussion).
Etymology
. The new species is named after the collector, Mr. Eddy Poirier.