Odontacolus gallowayi, A. Valerio, Alejandro, Austin, Andrew D., Masner, Lubomir & Johnson, Norman F., 2013

A. Valerio, Alejandro, Austin, Andrew D., Masner, Lubomir & Johnson, Norman F., 2013, Systematics of Old World Odontacolus Kieffer s. l. (Hymenoptera, Platygastridae s. l.): parasitoids of spider eggs, ZooKeys 314, pp. 1-151 : 31-33

Odontacolus gallowayi sp. n. Figures 12, 137-142; Morphbank 51

Description.

Female. Body length: 1.49mm (n=2). Antenna color: completely yellow. Body color: completely yellow. Coxae color: yellow. Leg color (excluding coxae): yellow. Fore wing color: completely hyaline.

Head. Size of compound eye: approximately 1/2 × height of head. Head shape in lateral view: lower head moderately short and strongly narrowed towards mouth, head appearing short and broad. Sculpture of antennal scrobe: smooth throughout. Surface of torular triangle: slightly bulging. Development of central keel on frons: present, elongate, reaching anterior ocellus. Sculpture on upper frons below anterior ocellus: with weak rugulose-aciculate sculpture. Sculpture of malar space: with fan-like striae, striae extending into antennal scrobe. Furrow at lateral portion of antennal scrobe: absent. Mesal surface of vertex: flat to weakly convex. Size of lateral ocelli: small. Distance between lateral ocellus and occipital carina: greater than 1.5 × maximum ocellar diameter. Lagrimal: absent or minute. Length of OOL: less than or equal to 1/3 × width of ocellus. Sculpture of vertex: with abundant areolate sculpture mixed with dense, fine granulae. Sculpture of occipital carina: weakly crenulate throughout. Distance from occipital carina to orbital carina: at least 2 × width of occipital carina. Shape of occipital carina: weakly sinuate medially. Sculpture of occiput: with weakly rugulo aciculate sculpture. Sculpture of gena: with weak rugulose sculpture and granulate background sculpture.

Mesosoma. Dorsal mesosoma in lateral view: convex. Sculpture of pronotal cervical area: with small (at most as large as crenulae on anterior edge of mesoscutum), well-defined foveae. Sculpture of pronotal lateral area: largely covered by longitudinal costae except upper 1/5 foveate. Netrion: absent, obscured by longitudinal sculpture of lateral pronotum. Notaulus: present, with low crenulae that do not extend through depth of furrow. Length of notaulus: approximately less than or equal to 1/3 of length of mesoscutum. Width of notaulus: narrow (notaulus width less than or equal to half the width of tegula). Sculpture of mesoscutum: finely granulose. Sculpture of mesoscutellum: with weak, fine, granulate sculpture. Mesoscutellar profile: elevated, anterior margin higher than posterior. Mesoscutellar shape: flat, not depressed. Lateral propodeal area: sparsely transversely carinate. Shape of propodeal anterior spine: short, broad, apex rounded. Sculpture of propodeum between anterior spines: smooth or largely smooth. Sculpture of ventral half of mesepisternum: smooth or nearly so. Sculpture of upper 1/4 of mesopleuron: sparsely longitudinally costate across entire width. Metapleural sculpture: smooth.

Wings. Stigmal vein: present, short, narrow. Campaniform sensilla at distal area of stigmal vein: present.

Metasoma. Shape of T1 horn: narrow, elongate. Sculpture of upper portion of T1 horn: smooth. Sculpture of posterior portion of T1 horn: longitudinally carinate. Lateral carinae on T2: absent. Sculpture of T2: largely longitudinally costate, meson smooth, weakly granulate laterally. Sculpture of T3: weakly coriaceous. Sculpture of S3-S6: finely, weakly coriaceous. S2 anterior carina: present, rounded, uninterrupted.

Male. Unknown.

Diagnosis.

This is one of two species within a group of taxa that has an obscured netrion, notaular crenulae poorly defined, and the mesoscutum completely sculptured (without smooth areas) and entirely covered by short, abundant setae. Odontacolus australiensis can be separated from Odontacolus gallowayi by the deep impressed notauli that exhibit few sparse crenulae throughout their length in combination with its brown body color; Odontacolus gallowayi has a shallow notauli with dense crenulae throughout its length, and its body color is yellow.

Etymology.

This species is named after the Australian hymenopterist I. D. Galloway. The epithet is a noun in the genitive case

Link to distribution map.

52

Material examined.

Holotype female: AUSTRALIA: QLD, via Julatten, Mount Lewis, 28.III.1976, I. D. Galloway, OSUC 238000 (deposited in QMBA). Paratype: AUSTRALIA: 1 female, OSUC 237999 (QDPC).

Comments.

The holotype is in perfect condition; the paratype has the right hind wing and metasoma detached but glued to a card point.