Odontacolus mayri, 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 : 53-54

Odontacolus mayri sp. n. Figures 221-226; Morphbank 79

Description.

Female. Body length: 1.40 - 1.90 mm (n=14). Antenna color: completely yellow except distal half of clava slightly darker than remainder of antenna. Body color: mainly yellow, T5-T7 slightly darker. Coxae color: yellow. Leg color (excluding coxae): 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: largely smooth ventrally, dorsally with sinuate, transverse ridges.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 sparse, transverse costae mixed with weak, dense granulae. Sculpture of malar space: weakly rugulose 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: large. 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: weakly crenulate throughout. 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 weakly rugulo aciculate sculpture. Sculpture of gena: granulose.

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: upper 1/3 granulose, lower 1/3 with transverse foveae, otherwise smooth. Netrion: present, smooth, well-developed, not looking 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 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: 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: smooth or nearly so. Sculpture of upper 1/4 of mesopleuron: densely longitudinally costate across half width. Metapleural sculpture: mainly smooth, lower third sparsely longitudinally carinate.

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, well-defined. Sculpture of T2: largely longitudinally costate, meson smooth, weakly granulate laterally. Sculpture of T3: anterior third weakly costate sublaterally, weakly coriaceous mesally, otherwise granulose. Sculpture of S3-S6: finely, weakly coriaceous. S2 anterior carina: present, cristate, uninterrupted.

Male. Unknown.

Diagnosis.

Thisspecies belongs to a group that has short, smooth notauli, a well-defined netrion, central keel present, and sculptured antennal scrobe always with transverse costae in the background. Within this group Odontacolus mayri can be separated from Odontacolus kiau and Odontacolus whitfieldi by its completely yellow body and the weakly granulose sculpture of the mesoscutum.

Etymology. This species is named after the German biologist Ernst Walter Mayr. The epithet is a noun in the genitive case.

Link to distribution map.

80

Material examined.

Holotype female: THAILAND: Prachuap Khiri Khan Prov., Laem Sala Beach, T3012, Khao Sam Roi Yot National Park, 12°12.234'N, 100°00.767'E, 6. VII– 13.VII.2008, Malaise trap, Amnad & Yai, OSUC 321876 (deposited in QSBG). Paratypes: (13 females) INDONESIA: 1 female, OSUC 321895 (BMNH). THAILAND: 12 females, OSUC 339596, 339599 (CNCI); OSUC 268733, 321872, 321874, 374179 (OSUC); OSUC 250611, 250857-250858, 250860, 266235(QSBG); OSUC 339595 (WINC).

Comments.

The holotype is in perfect condition.