Chrysonotomyia longicaudata Paniagua & Hansson

Paniagua, Miguel, Hansson, Christer & Medianero, Enrique, 2009, Entedoninae (Hymenoptera: Eulophidae) associated with gall-inducing insects (Diptera: Cecidomyiidae) in Panama, Zootaxa 2237, pp. 43-58 : 48-49

Chrysonotomyia longicaudata Paniagua & Hansson sp. n.

Figures 3 , 9, 10 .

Etymology. From the Latin: longus, long, caudatus, tailed, in reference to the elongate apical tergite on female gaster.

Material examined. Holotype female labeled “ Panama: Provincia de Colón, Fuerte Sherman, San Lorenzo, iv.2006, M. Paniagua, Cecidomyiidae galls on Coccoloba parimensis ” ( LUZM). Paratypes: two females, three males with same label data as holotype (in coll. Christer Hansson); 11 females, 18 males with the same label data as holotype ( MEUP); four females, three males with the same label data as holotype (USJ); five females, five males with the same data as holotype ( MNCM).

Diagnosis. Apical tergite of female gaster elongate and parallel-sided ( Fig. 10 ), as long as remaining gaster; frons with pale brown spot in front of anterior ocellus; midlobe of mesoscutum completely and brightly metallic (golden-green); female scutellum without metallic stripe (some specimens with a brownish stripe), male scutellum with a small brownish spot in anterior third; with hind tarsomeres 1–2 brown and 3–4 white; male gaster with first tergite pale brown with weak metallic tinges, tergite 2 yellow, remaining tergites pale brown with metallic purplish tinges; vertex with weak reticulation with transverse meshes.

Description. Length of body female (including last gastral tergite) 1.6–1.8 mm, male 1.1–1.3 mm. Scape with outer surface yellowish inner surface pale brown, pedicel pale brown, flagellum dark brown. Frons yellow. Vertex yellow with pale brown spot in front of anterior ocellus and narrow bluish-purple metallic stripe close to eyes lateral to lateral ocellus. Pronotal collar golden-green, lateral pronotum white. Midlobe of mesoscutum golden-green, sidelobes yellow with area adjacent to notaular depressions golden-green. Scutellum yellowish-brown without metallic stripe (a brown stripe is present in some specimens). Axilla yellowish-brown, anteriorly with a very weak metallic spot. Dorsellum yellowish-brown. Lateral and ventral thorax predominantly yellow; upper mesepimeron with pale brown spot, lower mesepimeron with weak metallic purplish tinges. Propodeum pale brown with metallic golden-green tinges, with two yellowish-brown spots posterolaterally. Fore coxa yellowish-white, mid coxa ventrally pale brown, dorsally white, hind coxa white, anteroventrally infuscate (dark brown); femora pale brown; fore tibia with anterior third yellowishbrown, posterior two thirds yellowish-white; mid tibia yellowish-white; hind tibia with anterior half brown and posterior half yellowish-brown; fore and mid tarsi white, hind tarsus with tarsomeres 1–2 brown and 3–4 white. Female forewing with two infuscate spots, one below middle of marginal vein, one below stigmal vein ( Fig. 3 b); male forewing completely hyaline. Petiole yellowish. Female gaster pale brown, first tergite with golden-green tinges, remaining tergites with weak metallic purple tinges, posterior edges of tergites 2–6 brown, tergite 7 yellowish-white with apical third dark brown; male gaster with first tergite pale brown with weak metallic tinges, tergite 2 yellow, remaining tergites pale brown with metallic purplish tinges.

Antennae as in Fig. 3 c. Frons with weak small meshed reticulation; frontal suture straight. Vertex with weak reticulation, meshes transverse. Occipital margin rounded. Ratios: HE/MS/WM = 4.8/1.0/2.6; POL/ OOL/POO = 1.1/1.0/1.0; WH/WT = 1.3.

Pronotum without transverse carina along posterior margin. Midlobe of mesoscutum with strong and large meshed reticulation, sidelobes with weaker reticulation and smaller meshes. Scutellum with strong reticulation, meshes small and elongate ( Fig. 9 ). Forewing with speculum open below; radial cell bare and with one stigmal hairline; area between infuscate spots hairy. Propodeum with complete median carina, otherwise smooth and shiny. Ratios: LW/LM/HW = 2.1/1.3/1.0; PM/ST = 1.6.

Female gaster elongate with last tergite elongate and parallel-sided, as long as remaining gaster. Ratio of MM/LG = 0.3. Male phallobase and digitus as Fig. 3 a.

Host. From galls of unidentified Cecidomyiidae on Coccoloba parimensis (Polygonaceae) . Biology remarks. C. longicaudata parasitized 80.7% of the collected galls. The other parasitoid species found in the galls of Coccoloba parimensis was an unidentified species of Platygastridae . Distribution. Understorey of San Lorenzo Protected Area, Provincia de Colón, República de Panama. Identification. This species belongs to bimaculata -group (sensu Hansson 2004), and using the key in Hansson (2004) the female runs to couplet 55. To include C. longicaudata the key should be modified as follows:

Couplet 54, second alternative leads to 55a, not 55.

55a. 7th gastral tergite as long as remaining gaster ( Fig. 9 ) ......................... C. longicaudata Paniagua & Hansson sp. n. - 7th gastral tergite much shorter .............................................................................................................................. 55

The male runs to couplet 65 in Hansson (2004), and to include C. longicaudata in the key it should be modified as follows:

Couplet 64, second alternative leads to 65a, not 65.

65a Midlobe of mesoscutum completely metallic (golden-green) ............. C. longicaudata Paniagua & Hansson sp. n. - Midlobe of mesoscutum with at least posterior 0.2 pale yellow non-metallic ...................................................... 65

Figures

FIGURE 3. Chrysonotomyia longicaudata sp. n.: a) male phallobase, b) forewing (female), c) antenna lateral (female).

FIGURE 8 – 11. 8. Ametallon carinatum sp. n., thoracic dorsum (female). 9. Chrysonotomyia longicaudata sp. n., thoracic dorsum (female). 10. Chrysonotomyia longicaudata sp. n., gastral apical tergite (female). 11. Chrysonotomyia machaeriae sp. n., thoracic dorsum (female).