treatment provided by
Netomocera amethysta sp. nov.
Macropterous ( Fig. 23View Figs 23–27). Head yellowish ( Figs 24–25View Figs 23–27). Fore wing ( Fig. 31View Figs 28–31) mainly brownish except for one bare region, swollen and shining violet-blue when examined under some angles of light, and with four hyaline areas covered with white setae: one apically in basal cell, a U-shaped region behind bare region and two subapical spots. Basal half of flagellum yellow, the rest brownish ( Fig. 27View Figs 23–27). Clypeal margin shallowly emarginate ( Fig. 26View Figs 23–27). Upper face and vertex with ten large setae ( Fig. 25View Figs 23–27). Occiput margin blunt ( Fig. 25View Figs 23–27). Mesepimeral sulcus inconspicuous. Propodeum with median area almost without carinae, without a well-defined V-shaped area basally ( Fig. 30View Figs 28–31). Visible part of petiole very short, distinctly transverse, with more or less obliterate sculpture ( Fig. 29View Figs 28–31).
The name of the species (noun in apposition) refers to the characteristic blue-violet colour of the fore wing bare region, similar to the colour of amethyst quartz.
DOMINICAN REPUBLIC • ♀; “ Pedernales, Sierra de Bahoruco, «Las Abejas», 1300m, 17-19.I.1989, L. Masner, cloud forest”; on triangular card, left antenna with fu7 and clava missing; CNC.
Female (habitus: Fig. 23View Figs 23–27)
COLOUR. Head ( Figs 24–26View Figs 23–27) mainly orange-yellow, except vertex and genae below eyes brownish. Mandibles orange, teeth reddish-brown. Antenna ( Fig. 27View Figs 23–27) with scape pale yellow; pedicel dorsally brown, ventrally yellowish; anellus brown; fu1–4 yellow, fu5–7 brown; clava mostly brown, becoming lighter towards yellowish apex. Mesosoma ( Figs 28–30View Figs 28–31) dorsally mainly orange, darker on pronotal collar, axillae and propodeum; laterally orange except darker over lower posterior half of mesopleuron and entire metapleuron. Legs with fore coxa whitish, mid and hind coxae brownish; femora mainly whitish but becoming brownish apically; tibiae and tarsi light brown. Fore wing ( Fig. 31View Figs 28–31) mainly brownish except for one bare region, swollen and shining violet-blue when examined under some angles of light, and four hyaline areas covered with white setae: one apically in basal cell, a U-shaped region behind bare region and two subapical spots; venation brown. Hind wing hyaline. Metasoma ( Fig. 23View Figs 23–27) with petiole dark brown; gaster mainly uniformly brown, with a few lighter spots dorsally. Body setation whitish except for several large, symmetrically arranged dark brown setae.
BODY LENGTH. 1.25 mm.
HEAD. Clypeus almost smooth; apical margin very slightly emarginated ( Fig. 26View Figs 23–27). Lower face with shallow piliferous punctures among reticulation. Upper face, including shallow scrobes and adjacent areas, and vertex becoming densely punctulate-reticulate ( Figs 24–25View Figs 23–27). Occiput reticulate-imbricate; margin abrupt, but not sharply defined ( Fig. 25View Figs 23–27). Toruli with lower margins slightly below lower margins of eyes ( Fig. 24View Figs 23–27). Antenna ( Fig. 27View Figs 23–27) with funicle gradually widening towards clava, with clava very slightly asymmetric. Upper face and vertex with ten large setae. Head in dorsal view with width 3.15 × length (60:19) and in frontal view about 1.2 × height (60:50). POL about 4× OOL (18.0:4.5). Eye height about 1.4× length (34:25), about 2.6× malar space (34:13) and about 1.2 × scape length (34:29). Head width 0.95 × length of pedicel plus flagellum (60:63). Fu1 quadrate (5:5); fu7 width 1.5× length (7.5:5.0); clava length 2.5 × width (20:8).
MESOSOMA. Pronotal collar narrower than mesoscutum, with ten large setae ( Fig. 29View Figs 28–31). Mesonotum moderately setose dorsally ( Fig. 29View Figs 28–31). Mesoscutum and axillae with dense punctulate reticulation ( Fig. 29View Figs 28–31). Scutellar disc densely punctulate-reticulate anteriorly and becoming longitudinally striate-reticulate posteriorly; frenal area coriaceous ( Figs 29–30View Figs 28–31). Upper mesepisternum smooth; lower mesepisternum reticulate. Mesepimeron mainly smooth, becoming shallowly punctulate ventrally and posteriorly; mesepimeral sulcus mostly inconspicuous ( Fig. 28View Figs 28–31). Propodeum mainly smooth to slightly wrinkled, except for straight median carina and incomplete plicae ( Fig. 30View Figs 28–31). Macropterous; fore wing ( Fig. 31View Figs 28–31) with basal cell uniformly setose; bare region reaching about middle of marginal vein; setae on infuscate areas darker, longer and thicker than those on hyaline areas; setae below parastigma forming a large patch of conspicuously thicker and longer setation than that on other areas of wing. Mesosoma length about 1.4× width (68:47) and about 1.5× height (47:46). Pronotal collar 0.2× as long as mesoscutum (4:20) and about 0.8 × as wide as mesoscutum (29:28). Mesoscutum width 2.35 × length (47:20). Scutellum length subequal to width (24:26). Propodeum length about 0.5 × scutellum length (15:29). Fore wing length 2.5× width (120:48); MV 7× SV (35:5) and about 4.7× PV (35.0:7.5).
METASOMA. Petiole ( Fig. 29View Figs 28–31) barely visible, transverse, smooth. Gaster ( Fig. 23View Figs 23–27) ovate, length about 1.5× width (75:51); gt1 longest, width about 1.3 × length (51:40), with posterior margin slightly produced; gt2–5 short; syntergum acutely pointed. Ovipositor sheaths not protruding beyond apex of gaster. Cercal setae surpassing apex of gaster.
This is one of the most remarkable species of the genus due to its unusual coloration and setal pattern of the fore wing ( Fig. 31View Figs 28–31). It is also unusual in having ten large setae on the head ( Fig. 25View Figs 23–27) instead of eight as in most other species and ten large setae on the pronotum rather than six–eight. The propodeum is also unusually without carinae, except for a median carina and plicae ( Fig. 30View Figs 28–31). All of these characters indicate that the new species may belong to a different genus, but at present I prefer to keep it in Netomocera , at least until more Neotropical material is examined.
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