Eadya duncan Ridenbaugh, 2018

Ridenbaugh, Ryan D., Barbeau, Erin & Sharanowski, Barbara J., 2018, Description of four new species of Eadya (Hymenoptera, Braconidae), parasitoids of the Eucalyptus Tortoise Beetle (Paropsis charybdis) and other Eucalyptus defoliating leaf beetles, Journal of Hymenoptera Research 64, pp. 141-175 : 149-151

Eadya duncan Ridenbaugh sp. n. Figs 6A-C , 7A-E

Diagnosis.

Eadya duncan sp. n. can be distinguished from all other members of Eadya by the following combination of characters: Clypeus flanged at ventral margin, with two medial tubercles projecting outward (Fig. 7A ); frons with inter-antennal and lateral carina strongly flanged (Fig. 7B ); occipital carina simple (Fig. 7B ); occiput concave; notaulus narrow and impressed towards anterior margins of mesoscutum, crenulate at apex (Fig. 7C ); scutellar sulcus divided into two distinct foveae with short longitudinal carinae ending before reaching anterior margin (Fig. 7C ); propodeum not rounded in appearance from lateral angle (Fig. 6A ), with transverse carina creating a distinct posterior face when viewed laterally; propodeal spiracle elliptical; head orange except for antenna, apex of mandible, and ocellar triangle black (Fig. 7A, B ); prothorax orange (Figs 6A , 7C ); hindwing infuscate with dark brown veins except for anal, basal, subbasal, and anterior half of discal cells hyaline (Fig. 6C ); legs black except for fore coxa and trochanter orange, fore femur dark orange (Fig. 6A ).

Description.

Male. Body length 6.37mm.

Color. Head orange except for antenna, apex of mandible, and ocellar triangle black (Figs 6A, B ; 7A, B ); prothorax orange (Figs 6A, B ; 7B ); mesothorax orange (Figs 6A, B ; 7B, C ); propodeum black except for medial posterior margin at the insertion of metasomal tergite 1 orange (Figs 6A, B ; 7B ); metapleuron black; forewing infuscate with dark brown veins except for anal, basal, and subbasal cells hyaline (Fig. 6C ); hindwing infuscate with dark brown veins except for anal, basal, subbasal, and anterior half of discal cells hyaline (Fig. 6C ); legs black except for fore coxa and trochanter orange, fore femur dark orange; abdomen black (Fig. 6A, B ).

Head. Clypeus simple, smooth with scattered setae, flanged at ventral margin, with two medial tubercles projecting outward (Fig. 7A ); mandibles overlapping, dorsal tooth longer than ventral (Fig. 7A ); face finely punctate with associated setae (Fig. 7A ); frons rugulose, inter-antennal and lateral carina strongly flanged, starting at the toruli and reaching the ocellar triangle (Fig. 7A, B ); vertex smooth with scattered setae (Fig. 7B ); occipital carina simple, reaching hypostomal carina (Fig. 7B ); hypostomal carina strongly flanged, meeting the mandible and bending around to the mandibular condyle; occiput smooth, normal.

Mesosoma. Pronotum exposed in dorsal view, pronope and subpronope absent, smooth except for a faint crenulate line extending laterally and rugulose sculpturing along the lateral posterior margin (Fig. 7B ); mesoscutum with median mesonotal lobe smooth (Fig. 7C ); notaulus impressed towards anterior margins of mesoscutum, crenulate at apex (Fig. 7C ); scutellar sulcus divided into two distinct foveae with short longitudinal carinae ending before reaching anterior margin (Fig. 7C ); sternaulus crenulate (Fig. 7D ); propodeum rugose and pubescent, not rounded in appearance from lateral angle, with transverse carina creating a distinct posterior face (Fig. 6A ); propodeal spiracle elliptical; coxa, trochanter, trochantellus, and femur covered in setae, tibia and tarsus pubescent (Fig. 6A, B ); tarsal claws simple.

Forewing. r-m curved slightly towards stigma before reaching the junction of 3RSa and 3RSb (Fig. 6C ).

Hindwing. R1a with three hamuli.

Metasoma. Metasomal tergite 1 petiolate, spiracle protruding as a tubercle at about the middle of the segment, dorsal and lateral surface punctate with associated setae (Fig. 7E ); ovipositor straight.

Female. Unknown.

Host.

Unknown.

Distribution.

New South Wales, Victoria (see discussion).

Etymology.

This epithet is named in honor of the senior author’s (BJS) sister in law, Julie Brant nee Duncan, who is an Australian-born beauty. This is a noun in apposition to the generic name in order to retain integrity of the surname Duncan.

Remarks.

The holotype for this species was identified as a species of Eadya by Huddleston in 1977 and deposited at ANIC, but was not listed as material examined in the original description of Eadya . The flange of the inter-antennal carinae is difficult to see in the images (Fig. 7A, B ), but is clear when viewing the specimen, provided the antennae are separated enough.

Type material.

Holotype, Male ( ANIC), "Upper Kangaroo Valley, NSW, 24 Nov 1960, E.F. Riek, A44, Aust. Nat. Ins. Coll.".

Figures

Figure 6. Eadya duncan Ridenbaugh, sp. n. holotype. A Lateral habitus B Dorsal habitus C Fore and hind wing. All scale bars are 1 mm in length.

Figure 7. Eadya duncan Ridenbaugh, sp. n. holotype. A Head, frontal view B Head, dorsal view C Head and mesoscutum, dorsal view D Mesopleuron, lateral view E Propodeum, dorsal view. All scale bars are 1 mm in length.