Odontacolus zborowskii, 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 : 69-71

Odontacolus zborowskii sp. n. Figures 19, 62, 281-286, 293, 297, 309, 329-330; Morphbank 99

Description.

Female. Body length: 1.45 - 1.52 mm (n=6). Antenna color: completely yellow. Body color: mostly yellow, mesopleuron, metapleuron and posterior area of T1-T3 dark brown. Coxae color: yellow. Leg color (excluding coxae): yellow. Fore wing color: largely hyaline, with transverse infumate band below stigma vein.

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: with weak, sinuate, transverse ridges throughout. Surface of torular triangle: slightly bulging. Development of central keel on frons: present, short (less than 1/3 of frons height); present, elongate, reaching anterior ocellus. Sculpture on upper frons below anterior ocellus: covered by sinuate, transverse, fine costae. Sculpture of malar space: with fan-like striae, striae not 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 sinuate, transverse, fine ridges. 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: weakly sinuate medially. Sculpture of occiput: with dense, fine transverse costae across its width. Sculpture of gena: with sinuate dorsoventral costae.

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: transversely costate. 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 equal to or greater than 2/3 of length of mesoscutum. Width of notaulus: distinctly widened (notaulus width greater than half the width of tegula). Sculpture of mesoscutum: weakly rugulose, carinae somewhat broad in shape. Sculpture of mesoscutellum: anterior 1/3 with weak granulae, otherwise with rugulae. Mesoscutellar profile: elevated, anterior margin higher than posterior. Mesoscutellar shape: flat, not depressed. Lateral propodeal area: densely transversely carinate. Shape of propodeal anterior spine: elongate, narrow, apex rounded. Sculpture of propodeum between anterior spines: longitudinally costate. Sculpture of ventral half of mesepisternum: longitudinally costate. Sculpture of upper 1/4 of mesopleuron: densely longitudinally costate across entire width. Metapleural sculpture: midtransverse area smooth, otherwise with cristate, longitudinal carinae.

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

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

Male. Body length: 1.39 - 1.58 mm (n= 3). Body color: antenna light yellow as metasoma and legs, head honey-yellow; mesosoma dark brown; fore wing with a conspicuous dark band just before stigmal vein, remainder of fore wing lightly infuscate. Sculpture of antennal scrobe: lower, mesal area smooth, remainder of scrobe with weak coriaceous sculpture. Shape and size of anterior ocellus: small, very circular in shape. Vertex posterior area sculpture: with dense, setigerous punctulate sculpture. Occipital carina at dorsal area: present, not conspicuously present. Netrion: practically absent by presence of longitudinal carinae on pronotal lateral areas. Sculpture of mesepisternum; absent (smooth). Sculpture of pronotal lateral areas: with dense, fine, sinuate, transverse carinae. Length of fore wing stigmal vein: short. Angle of stigmal vein in relation to anterior margin of fore wing: at an angle of approximately 45° with respect to anterior margin of wings. Sculpture of T2: mainly smooth except lateral areas with few, sparse, weak carinae.

Diagnosis.

This species can be separated from all Odontacolus species with an obscured netrion by the well-defined and wide notauli with clearly defined large crenulae throughout, the broad rugulose sculpture on frons and mesoscutum, and the yellow body color.

Etymology.

This species is named after the Australian entomologist and invertebrate photographer Paul Zborowski. The epithet is a noun in the genitive case.

Link to distribution map.

100

Material examined.

Holotype female: AUSTRALIA: QLD, Heathlands, 11°45'S, 142°35'E, 25. VII– 18.VIII.1992, Malaise trap, P. Zborowski & J. Cardale, OSUC 237939 (deposited in ANIC). Paratypes: AUSTRALIA: 57 females, 3 males, OSUC 237938, 237940-237943, 237945-237948, 237950-237956, 237958-237973, 237976-237998, 238424 (ANIC); OSUC 237949, 237957, 237975 (OSUC); OSUC 237944 (WINC).

Comments.

The holotype is in perfect condition as are the paratypes. In some specimens (e.g. OSUC 237956) the area between the propodeal anterior spines has some dark honey yellow color instead of the typical yellow.