Eretmocerus pallidus Dozier

Delvare, Gérard, Genson, Gwenaelle, Borowiec, Nicolas, Étienne, Jean, Karimé, Anli- Liochouroutu Abdoul & Beaudoin-Ollivier, Laurence, 2008, Description of Eretmocerus cocois sp. n. (Hymenoptera: Chalcidoidea), a parasitoid of Aleurotrachelus atratus (Hemiptera: Aleyrodidae) on the coconut palm, Zootaxa 1723, pp. 47-62 : 56

Eretmocerus pallidus Dozier

( Figs 24–26 )

Eretmocerus pallidus Dozier, 1932: 115 –117. Type locality: HAITI: Damien. Host: Aleurothrixus floccosus .

Material examined (in USNM). Type material. – Lectotype Ψ (here designated, see Fig. 23 for placement on slide). Labelled: Eretmocerus pallidus Dozier /reared from Tetraleurodes minutissima Dozier on Annona squamosa /Port-au-Prince, Haiti / April 11, 1931 /H.L. Dozier. Paralectotypes. 3 ΨΨ (on the same slide) and 4 ΨΨ on another slide.

Diagnosis. Mostly the antennae and appendices are visible as the specimens were slide-mounted without clearing. Radicula 0.37–0.42 times as long as the scape. Scape 3.20–4.60 times as long as wide. Pedicel (1.8) 2.0–2.1 (2.5) times as long as wide and 0.40–0.54 times as long as scape. F1 subtriangular with ventral length much longer than dorsal one. Clava 5.0–6.5 (7.25) times as long as wide, 1.75–1.85 times as long as scape and 3.25–3.90 (4.70) times as long as pedicel. Mid lobe of mesoscutum with 3 pairs of setae. Scutellum with 2 pairs of setae and a pair of placoid sensilla. Forewing 2.8–3.2 times as long as wide. Posterior fringe maximal length 0.40–0.50 times as width of wing. Marginal vein 0.45–0.55 times as long as costal cell. Stigmal vein 0.31–0.41 (0.55) times as long as marginal vein when measured as Graham (1969) or 0.48–0.62 times so when measured as Rose and Zolnerowich (1997). Costal cell with 1–2 apical dorsal hairs. Submarginal and marginal veins bearing each 3 dorsal setae. Fore wing disc bearing 4–6 hairs basad of linea calva, mostly on 1 row. 8–10 microtrichiae visible below linea calva. Length of apical spur of mid tibia 0.48–0.62 times as long as relevant basitarsus. Ovipositor 1.04–1.16 times as long as mid tibia.

This species can be recognized by its unusual small size (0.6 mm), relative proportion of antennal segments, presence of 3 pairs of setae on mid lobe of mesoscutum, relatively narrow fore wing, long marginal fringe, presence of 3 dorsal setae on submarginal vein and ovipositor, slightly longer than mid tibia.

Figures

FIGURES 23 – 26. Type series of Eretmocerus pallidus Dozier. 23. Slide-mountings showing the placement of the selected lectotype. 24. Antenna. 25. Fore wing. 26. Base of forewing.