Netomocera meridionalis,

Mitroiu, Mircea-Dan, 2019, Revision of Netomocera Bouček (Hymenoptera: Chalcidoidea: Pteromalidae), excluding the Oriental species, European Journal of Taxonomy 568, pp. 1-87: 53-58

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Netomocera meridionalis

sp. nov.

Netomocera meridionalis  sp. nov.

Figs 118–130View Figs 118–122View Figs 123–128View Figs 129–130


Both sexes

Clypeal margin shallowly emarginate ( Fig. 121View Figs 118–122). Upper face and vertex with ten large setae ( Fig. 120View Figs 118–122). Occiput margin blunt ( Fig. 120View Figs 118–122). Scutellum, including frenal area, reticulate, with elongate cells ( Fig. 124View Figs 123–128). Propodeum ( Fig. 125View Figs 123–128) without a well-defined V-shaped area basally, with small smooth areas

among carinae; nucha small, with lateral margins converging posteriorly. Visible part of petiole very short, distinctly transverse, with more or less obliterate sculpture ( Fig. 125View Figs 123–128).


Head yellowish ( Figs 119–120View Figs 118–122). Flagellum mainly brown ( Fig. 122View Figs 118–122). Macropterous ( Fig. 127View Figs 123–128) or brachypterous ( Fig. 118View Figs 118–122); fore wing with two transverse brownish bands, one behind basal part of marginal vein and the second behind stigma ( Figs 126, 128View Figs 123–128). Head width slightly less than combined length of pedicel and flagellum.Antenna ( Fig. 122View Figs 118–122) moderately clavate, fu7 width 1.2–1.4× length; clava length 2.1–2.4 × width. Mesosoma length 1.5–1.6 × height. Mesoscutum strongly reticulate ( Fig. 124View Figs 123–128), width 2.1–2.5 × length. Mesepimeral sulcus mostly inconspicuous ( Fig. 123View Figs 123–128).


Head usually brownish ( Fig. 129View Figs 129–130). Funicle uniform in colour except sometimes fu1 lighter ( Fig. 130View Figs 129–130). Fore wing with at least one brownish band behind basal part of marginal vein ( Fig. 129View Figs 129–130); apical part of basal cell mainly bare (cf. Fig. 128View Figs 123–128). Fu1 length 1.7–2.5 × width. Scutellum uniformly reticulate, cells isodiametric to slightly elongate (cf. Fig. 124View Figs 123–128). MV 5.0–5.5 × SV.


The name of the species (adjective) refers to its southern distribution in North America.

Material examined


UNITED STATES OF AMERICA – Florida • ♀; “FLA: Monroe Co, Big Pine Key, S1, T67S, R29E, 1.VIII.-18.XI.85, S&J Peck, Cactus Hammock, malaise & FIT, forest”; entire, on triangular card; CNC. 


UNITED STATES OF AMERICA – Florida • ♂; same data as for holotype; “ 1.VIII.-17.XI.85 ”; CNC. 

Additional paratypes

UNITED STATES OF AMERICA – Florida • 1 ♀; “FLA: Dade Co , Chekika St. Rec Area, 50 km SW Miami, [?] 2.VIII.85 S&J Peck”; “Grossman Hammock For. malaise-FIT”; “ Netomocera nearctica Yoshim. Det. Z. Bouček 1991  ”; BMNH  2 ♀♀; “FLA: Dade Co., Everglades NP, Long Pine Key , pinelands, 8.VI-26.VIII.86, S&J Peck 3 mal FITs”; CNC  1 ♂; “USA, Florida : Gainesville, 28.8.76. Z. Bouček ”; “ Netomocera nearctica Yoshm.  ♂ ”; BMNH  1 ♀; “USA, Florida : Cedar Key, 29.8.76. Z. Bouček ”; “ Netomocera nearctica Ish.  ”; BMNH  1 ♀; “FL: Highlands Co., Archbold Biol. Stn. , 19.IV.1989, J.R. Vockeroth ”; “PT on shore of Lake Annie ”; “ Netomocera nearctica Yoshim. Det. Z. Bouček 1993  ”; CNC  1 ♀; “FLA. Levy Co., Manatee Sprs. State Park , 3-5. VI.1978, N.F. Johnson ”; “ pan trap in hardwood forest”; CNC  1 ♀; “USA FL: Monroe Co., Sugar Loaf Key , Kitchings NW1/4, SE1/2, S25, R27E, T66S, 3.v-3.viii.85, FIT, S&J Peck hammock for.”; “ Netomocera nearctica Yoshim. Det. Z. Bouček 1993  ”; CNC  6 ♂♂; same data as for preceding; “ 26.II-6. VI.1985, S&J Peck FIT malaise”; CNC  1 ♂; same data as for preceding; “ 14.XI.-85 - 26.II.-86 ”; CNC  1 ♂; same data as for preceding; “ 22.VIII-16.XI.-85 ”; CNC  1 ♂; same data as for preceding; “ 24.II-4. VI.86 ”; CNC  3 ♂♂; same data as for preceding; “ 5.VIII-19.XI.1985 ”; CNC  3 ♀♀, 4 ♂♂; “FLA: Monroe Co., Sugar Loaf Key, SE 1/4 S23, 29.VIII-14.XII.86, S.&J. Peck ”; “ Netomocera Det. Z. Bouček 1989  ”; CNC  2 ♂♂; “FLA: Monroe Co., Big Torch Key, SW1/4, Sec 12, 4.VIII.-19.IX.85, S&J Peck hammock forest, malaise & FIT ”; CNC  2 ♂♂; same data as for preceding; “ 19.XI.85 - 26.II.86 ”; CNC  5 ♂♂; “ Fla Archer , 11. VI.86, S. Peck ”; CNC  3 ♀♀; “FLA: Alachua Co , Archer, 9-11.IV.86, G.A.P. Gibson, P.T.”; CNC  2 ♀♀; “FLA: Monroe Co ; Big Pine Key; S1, T67S, R29E, 1.VIII.-17.XI.85, S&J Peck, Cactus Hammock, malaise & FIT, forest”; CNC  1 ♀; “FLA: Monroe Co , Big Pine Key, Watsons Hammock, S&J Peck, 23.II-3. VI.86, hardwood hammock, malaise FIT ”; CNC  1 ♀; same data as for preceding; “3.V/ 27.VII.86 ”; CNC  1 ♀, 1 ♂; “FLA: Monroe Co., Big Pine Key , Watson’s Hammock ”; “ 31.VIII-9.XII.86, S.&J. Peck ”; “ Netomocera nearctica  , det. C. Desjardins ”; CNC  4 ♀♀, 2 ♂♂; same data as for preceding; “ 28.VIII.86 ”; CNC  1 ♀; “FL, Big Pine Key , Watson’s Hammock, July 1981, S.B. Peck Mal. trap”; CNC. – Georgia  1 ♀, 1 ♂; “USA GA: Mcintosh Co., Sapelo Is., FIT, 9-21. ix.87, coastal savannah, BRD team”; CNC. – Missouri  1 ♀; “USA: MO, Wayne Co., Williamsville , VII.1987, J. Becker MT ”; CNC  2 ♂♂; same data as for preceding; “ VIII.1987 ”; CNC. – Texas  1 ♀; “USA: Texas : Tyler Co., Kirby St. Forest, F.I.T., 30.iii-27.iv.2003 E. Riley ”; “Univ. Calif. Riverside Ent. Res. Museum, UCRC ENT 135892View Materials ”; UCRC 135892View Materials  .

Other material

MEXICO • 1 ♀; “ Mexico, Yucatan, Chichen Itza , 27.VII.84 G. Gordth ”; “Univ. Calif. Riverside, Ent. Res. Museum, UCRC ENT 494314View Materials ”; UCRC 494314View Materials  .


Female (habitus: Figs 118View Figs 118–122, 127View Figs 123–128)

COLOUR. Head ( Figs 119–120View Figs 118–122) yellow to yellowish-brown. Mandibles as head, except teeth reddishbrown. Antenna ( Fig. 122View Figs 118–122) with scape whitish-yellow to yellowish-brown; pedicel yellowish-brown to light brown; flagellum brown to dark brown, basally usually slightly lighter. Mesosoma ( Figs 123–125View Figs 123–128) as head, with one small black spot near each fore wing base. Legs with coxae whitish or rarely middle coxa pale yellow; trochanters and trochantelli whitish; femora, tibiae and tarsi light yellowish-brown, pretarsi dark brown. Fore wing with two brownish bands, one behind basal part of marginal vein and second behind stigma, in macropterous form ( Fig. 128View Figs 123–128) the second band converging towards the first and in brachypterous form ( Fig. 126View Figs 123–128) the two bands joined posteriorly or not; fore wing setation brown. Hind wing hyaline. Metasoma with petiole as mesosoma ( Fig. 125View Figs 123–128). Gaster ( Fig. 118View Figs 118–122) yellow to yellowishbrown, with cercal region, tip of ovipositor sheaths and usually part of several tergites darker. Body setation whitish except for large, symmetrically arranged, black setae.

BODY LENGTH. 1.00– 1.75 mm.

HEAD. Clypeus almost smooth; apical margin slightly emarginated ( Fig. 121View Figs 118–122). Lower face shallowly reticulate. Upper face reticulate, with reticulation becoming denser towards vertex ( Fig. 120View Figs 118–122). Scrobal depression densely reticulate ( Fig. 119View Figs 118–122). Occiput finely reticulate; margin blunt ( Fig. 120View Figs 118–122). Toruli with lower margin below lower margins of eyes ( Fig. 119View Figs 118–122). Antenna moderately clavate, with clava conspicuously asymmetric ( Fig. 122View Figs 118–122). Upper face and vertex with ten large setae ( Fig. 120View Figs 118–122). Head in dorsal view with width 2.10–2.25 × length (57:27) and in frontal view 1.1–1.2 × height (57:50). POL about 2.10–2.45 × OOL (15:7). Eye height about 1.3× length (29:23), 1.8–2.2× malar space (29:14) and 0.9–1.0 × scape length (29:30). Head width 0.85–0.90× length of pedicel plus flagellum (57:64). Fu1 length 1.0–1.5 × width (4:4); fu7 width 1.2–1.4× length (7.5:6.0); clava length 2.1–2.4 × width (19:8).

MESOSOMA. Pronotal collar narrower than mesoscutum, with six or seven large setae ( Fig. 124View Figs 123–128). Mesonotum moderately setose dorsally ( Fig. 124View Figs 123–128). Mesoscutum and axillae densely reticulate, dull ( Fig. 124View Figs 123–128). Scutellum, including frenal area, reticulate, cells isodiametric to elongate ( Fig. 124View Figs 123–128). Mesepisternum reticulate ( Fig. 123View Figs 123–128). Lower mesepimeron smooth, upper mesepimeron transversally striate; mesepimeral sulcus as a rugose area ( Fig. 123View Figs 123–128). Propodeum with a pattern of several strong carinae, interspaces virtually smooth or slightly wrinkled; nucha small, with lateral margins converging posteriorly ( Fig. 125View Figs 123–128). Macropterous or brachypterous. Macropterous form ( Fig. 127View Figs 123–128) with fore wing extensively bare in basal half, but basal cell with a few scattered setae on apical third and with a large bare region behind marginal vein ( Fig. 128View Figs 123–128). Brachypterous form ( Fig. 118View Figs 118–122) with fore and hind wings reduced and represented by stumps; fore wing longer than its maximum width, well surpassing posterior margin of propodeum, usually rounded or acute apically and with complete submarginal vein, reduced marginal vein and very short postmarginal and stigmal veins; basal cell bare; bare region behind marginal vein large ( Fig. 126View Figs 123–128). Mesosoma length 1.45–1.50 × width (65:42) and 1.5–1.6 × height (65:41). Pronotal collar about 0.2× as long as mesoscutum (3.5:20.0) and about 0.8 × as wide as mesoscutum (35:42). Mesoscutum width 2.1–2.5 × length (42:20). Scutellum length about 0.9× width (22:24). Propodeum length about 0.6× scutellum length (13:22). Fore wing length of macropterous form 2.7–3.1 × width; MV 3.8–4.7× SV; PV equal to slightly shorter than SV. Fore wing length of brachypterous form 3.8–4.7 × width (57:15).

METASOMA. Petiole very short, transverse, with a few longitudinal costulae ( Fig. 125View Figs 123–128). Gaster ovate, length 1.7–1.8× width (85:48) ( Fig. 118View Figs 118–122); gt1 longest, width 1.1–1.3 × length (48:37), with hind margin slightly produced; gt2–6 short; syntergum acutely pointed. Ovipositor sheaths protruding beyond apex of gaster. Cercal setae not surpassing apex of gaster.

Male (habitus: Fig. 129View Figs 129–130)

Differs from female mainly as follows. Body length: 0.75–1.60 mm. Head and mesosoma brown, except propodeum lighter ( Fig. 129View Figs 129–130). Flagellum light brown to brown, slightly to conspicuously darker than scape and pedicel ( Fig. 130View Figs 129–130). Fore wing with only first brownish band visible and this usually less distinct ( Fig. 129View Figs 129–130). Gaster yellowish-brown, usually becoming darker towards tip, occasionally only tip dark ( Fig. 129View Figs 129–130). Fu1 length 1.7–2.5 × width; length of pedicel plus flagellum 2.10–2.15 × as long as head width. Fore wing length 2.40–2.85 × width, row of admarginal setae sometimes longer. MV 5.0–5.5 × as long as SV and 5.0–6.2 × PV. Gaster (inflated) length 1.3–1.4 × width, gt1 occupying about one-third of gaster length.


Mexico, USA.


The only specimen from Mexico is not included in the type series because of its darker pedicel and legs, especially the hind tibia, which is dark brown. Females, and especially males, of this species are very similar to those of N. nearctica  (see the key for main differences). Netomocera meridionalis  sp. nov. seems confined to Florida and neighbouring states, except for three specimens collected in Missouri. Its area of distribution seems to be shared to a certain degree with N. nearctica  (mostly Missouri, Georgia and Texas), the records of N. nearctica  in Florida being very rare (see below). As for N. nearctica  , this species has both brachypterous and macropterous females; the ratio of brachypterous versus macropterous females among the analyzed specimens was 28:6, without obvious intermediate forms and thus opposite of the situation found in N. nearctica  , where the macropterous form seems dominant.


Canadian National Collection of Insects, Arachnids, and Nematodes


Mykotektet, National Veterinary Institute


Mus. Tinro, Vladyvostok


University of California, Riverside