Odontacolus jacksonae, 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 : 43-44

Odontacolus jacksonae sp. n. Figures 1, 35, 65, 185-190; Morphbank 67

Description.

Female. Body length: 1.75 - 1.78 mm (n=2). Antenna color: A1 yellow, otherwise dark brown. Body color: completely dark brown. Coxae color: honey yellow. Leg color (excluding coxae): legs yellow with hind femora honey 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, sparsely granulate ventrally. Surface of torular triangle: slightly bulging. Development of central keel on frons: present, elongate (equal to or greater than 1/3 × height of frons), but not reaching anterior ocellus. Sculpture on upper frons below anterior ocellus: with weak rugulose-aciculate sculpture. Sculpture of malar space: with sparse, short fan-like striae, striae not extending into scrobal area, mixed with weak coriaceous sculpture. Furrow at lateral portion of antennal scrobe: absent. Mesal surface of vertex: flat to weakly convex. Size of lateral ocelli: normal. 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: contiguous or nearly so, subequal to 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: dorsally punctate, 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: finely granulose. Sculpture of mesoscutellum: granulose. Mesoscutellar profile: mainly flat, anterior and posterior edge at same height or nearly so. Mesoscutellar shape: flat, not depressed. Lateral propodeal area: coarsely rugulose. Shape of propodeal anterior spine: elongate, narrow, apex sharply acute. 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: 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, elongate. Sculpture of upper portion of T1 horn: longitudinally carinate. Sculpture of posterior portion of T1 horn: longitudinally carinate. Lateral carinae on T2: present, poorly defined. Sculpture of T2: finely longitudinally costate, granulate laterally. Sculpture of T3: smooth mesally, area flanking mesal smooth area weakly costate in anterior third, otherwise weakly coriaceous. Sculpture of S3-S6: S3 weakly granulose, S4-S6 weakly, finely coriaceous. S2 anterior carina: present, cristate, interrupted medially.

Male. Unknown.

Diagnosis.

Within the group of species with a netrion present, the occipital carina almost touching the orbital carina, and having a sculptured gena, Odontacolus jacksonae can be separated from Odontacolus gentingensis by having a reduced lagrimal; in Odontacolus gentingensis the lagrimal is larger and very conspicuous.

Etymology.

This species is named after Ms Dorothy Jackson, who collected Hymenoptera for the BMNH in Cameroon, including this species. The epithet is a noun in the genitive case.

Link to distribution map.

68

Material examined.

Holotype female: CAMEROON: Nkoemvom, IV-1980-V-1980, D. Jackson, OSUC 238415 (deposited in BMNH). Paratypes: (17 females) CAMEROON: 13 females, OSUC 238414, 238416, 238432-238433, 238440-238441, 238443, 321892-321893, 321896(BMNH); OSUC 321898(WINC); OSUC 238420, 238434 (CNCI). GUINEA: 2 females, OSUC 238417 (BMNH); OSUC 238431 (CNCI). MADAGASCAR: 2 females, CASENT 2079143 (CASC); OSUC 229796 (OSUC).

Comments.

The holotype is in perfect condition as are the paratypes.