Odontacolus aldrovandii, 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 : 17-18

Odontacolus aldrovandii sp. n. Figures 53, 77-82; Morphbank 33

Description.

Female. Body length: 1.75 mm (n=1). Antenna color: A1, A5-A7 light yellow, remainder of antenna light honey yellow. Body color: completely dark brown. 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 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, elongate, reaching anterior ocellus. Sculpture on upper frons below anterior ocellus: with sparse, transverse costae mixed with weak, dense granulae. Sculpture of malar space: with weak rugulose sculpture mixed with granulate sculpture. Furrow at lateral portion of antennal scrobe: absent. Shape of medial area of vertexmedial area 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: present, well-defined but small (length less than 0.3 of malar sulcus length). 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 weak, small granulae. 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: largely granulose, ventral 1/4 with broad costae. Netrion: present, smooth, well developed, sub-obovate. 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: sparsely transversely carinate. 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 coriaceous. Sculpture of upper 1/4 of mesopleuron: densely longitudinally costate across entire width. Metapleural sculpture: largely smooth except lower half with longitudinal carinae.

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

Metasoma. Shape of T1 horn: narrow, 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: finely longitudinally costate, granulate laterally. Sculpture of T3: anterior third weakly costate sublaterally, weakly coriaceous mesally, otherwise granulose. Sculpture of S3-S6: S3 weakly coriaceous, S4-S6 mainly smooth with few, sparse, setigerous punctulae sculpture. S2 anterior carina: present, cristate, uninterrupted.

Male. Unknown.

Diagnosis.

This is the only species of Odontacolus known from Nepal so far. It has a small but evident lagrimal as in Odontacolus mot ; however, the lagrimal is not as large as in Odontacolus gentingensis . Odontacolus aldrovandii can be distinguished from Odontacolus mot by its smaller body size and the honey yellow coloration of the metasoma. In Odontacolus mot the metasoma in mainly dark brown except for the light orange T1.

Etymology.

This species is named to honor the Renaissance Italian naturalist Ulisse Aldrovandi. The epithet is used as noun in the genitive case.

Link to distribution map.

34

Material examined.

Holotype female: NEPAL nr. Birganj, Lothar, 450ft. 13-19.ix.1967, Malaise trap No.84, Canadian Nepal Expedition, OSUC 239210 (deposited in CNCI).

Comments.

The holotype is in good condition except that the right hind wing and right antennal clava are missing.