Odontacolus baeri, 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 : 22-23

Odontacolus baeri sp. n. Figures 48, 52, 70, 95-100; Morphbank 39

Description.

Female. Body length: 1.44 mm (n=1). Antenna color: completely yellow. Body color: mainly yellow, T1 horn dark brown, anteromesal mesoscutum honey yellow. Coxae color: whitish yellow. Leg color (excluding coxae): whitish yellow. Fore wing color: slightly infuscate throughout.

Head. Size of compound eye: approximately 1/2 × height of head. Head shape in lateral view: lower head elongate and broad at mouth, head appearing elongate and somewhat thin. Sculpture of antennal scrobe: weakly coriaceous throughout. Surface of torular triangle: slightly bulging. Development of central keel on frons: present, short (less than 1/3 of frons height). Sculpture on upper frons below anterior ocellus: granulose throughout. Sculpture of malar space: coriaceous throughout, without fan-like striae. 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: 0.5 –1.2× maximum ocellar diameter. Lagrimal: absent or minute. Length of OOL: less than or equal to 1/3 × width of ocellus. Sculpture of vertex: granulate. Sculpture of occipital carina: largely simple, at most with sparse weak crenulae medially. Distance from occipital carina to orbital carina: at least 2 × width of occipital carina. Shape of occipital carina: simply arcuate medially. Sculpture of occiput: with weak, small granulae. Sculpture of gena: granulose.

Mesosoma. Dorsal mesosoma in lateral view: convex. Sculpture of pronotal cervical area: smooth. Sculpture of pronotal lateral area: upper 1/3 granulose, lower 1/3 with transverse foveae, otherwise smooth. Netrion: present, smooth, linear. Notaulus: present, simple. 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: weakly rugulose mixed with weak granulae. Sculpture of mesoscutellum: granulose. Mesoscutellar profile: elevated, anterior margin higher than posterior. Mesoscutellar shape: flat, not depressed. Lateral propodeal area: densely, finely rugulose. Shape of propodeal anterior spine: elongate, narrow, apex rounded. Sculpture of propodeum between anterior spines: smooth or largely smooth. Sculpture of ventral half of mesepisternum: weakly, finely coriaceous. Sculpture of upper 1/4 of mesopleuron: densely longitudinally costate across entire width. Metapleural sculpture: smooth.

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

Metasoma. Shape of T1 horn: broad, short. Sculpture of upper portion of T1 horn: longitudinally carinate. Sculpture of posterior portion of T1 horn: largely smooth, with sparse longitudinal carinae. Lateral carinae on T2: present, poorly defined. Sculpture of T2: densely, finely, longitudinally costate, weakly coriaceous sublaterally. Sculpture of T3: anterior third weakly costate sublaterally, weakly coriaceous mesally, otherwise granulose. Sculpture of S3-S6: finely, weakly coriaceous. S2 anterior carina: absent.

Male. Unknown.

Diagnosis.

This species is very similar to Odontacolus africanus and Odontacolus anningae but can be separated from them by the absence of the S2 anterior carina. Both Odontacolus africanus and Odontacolus anningae have a clearly divided S2 anterior carina.

Etymology.

This species is named after the amazing German biologist Karl Ernst von Baer. The epithet is a noun in the genitive case.

Link to distribution map.

40

Material examined.

Holotype female: AUSTRALIA: NT, Holmes Jungle, rainforest / litter, Q.M. Berlesate No. 93, Berrimah, 12°25'S, 130°55'E, 7.VII.1979, sieved litter, G. Monteith, OSUC 238430 (deposited in QMBA).

Comments.

The female holotype is in perfect condition.