Apanteles rhomboidalis (Ashmead, 1900)

Fernandez-Triana, Jose L., Whitfield, James B., Rodriguez, Josephine J., Smith, M. Alex, Janzen, Daniel H., Hallwachs, Winnie D., Hajibabaei, Mehrdad, Burns, John M., Solis, M. Alma, Brown, John, Cardinal, Sophie, Goulet, Henri & Hebert, Paul D. N., 2014, Review of Apantelessensu stricto (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservacion Guanacaste, northwestern Costa Rica, with keys to all described species from Mesoamerica, ZooKeys 383, pp. 1-565 : 261-262

Apanteles rhomboidalis (Ashmead, 1900) Fig. 102

Urogaster rhomboidalis Ashmead, 1900: 290.

Apanteles rhomboidalis (Ashmead). Transferred by Szépligeti (1904: 111).

Type locality.

ST. VINCENT, Lesser Antilles.

Holotype.

♀, BMNH (examined).

Description.

Female. Body color: body mostly dark except for some sternites which may be pale. Antenna color: scape, pedicel, and flagellum pale. Coxae color (pro-, meso-, metacoxa): pale, pale, partially pale/partially dark. Femora color (pro-, meso-, metafemur): pale, pale, anteriorly pale/posteriorly dark. Tibiae color (pro-, meso-, metatibia): pale, pale, anteriorly pale/posteriorly dark. Tegula and humeral complex color: both pale. Pterostigma color: mostly dark, with small pale area centrally. Fore wing veins color: mostly dark (a few veins may be unpigmented). Antenna length/body length: antenna about as long as body (head to apex of metasoma); if slightly shorter, at least extending beyond anterior 0.7 metasoma length. Body in lateral view: not distinctly flattened dorso–ventrally. Body length (head to apex of metasoma): 2.1-2.2 mm. Fore wing length: 2.1-2.2 mm. Ocular–ocellar line/posterior ocellus diameter: 1.7-1.9. Interocellar distance/posterior ocellus diameter: 2.0-2.2. Antennal flagellomerus 2 length/width: 2.6-2.8. Antennal flagellomerus 14 length/width: 1.1-1.3. Length of flagellomerus 2/length of flagellomerus 14: 2.3-2.5. Tarsal claws: simple. Metafemur length/width: 3.2-3.3. Metatibia inner spur length/metabasitarsus length: 0.4-0.5. Anteromesoscutum: mostly with shallow, dense punctures (separated by less than 2.0 × its maximum diameter). Mesoscutellar disc: mostly smooth. Number of pits in scutoscutellar sulcus: 11 or 12. Maximum height of mesoscutellum lunules/maximum height of lateral face of mesoscutellum: 0.4-0.5. Propodeum areola: partially defined by carinae on posterior 0.3-0.5 of its length, widely open anteriorly. Propodeum background sculpture: mostly sculptured. Mediotergite 1 length/width at posterior margin: 2.6-2.8. Mediotergite 1 shape: mostly parallel–sided for 0.5-0.7 of its length, then narrowing posteriorly so mediotergite anterior width>1.1 × posterior width. Mediotergite 1 sculpture: mostly sculptured, excavated area centrally with transverse striation inside and/or a polished knob centrally on posterior margin of mediotergite. Mediotergite 2 width at posterior margin/length: 3.6-3.9. Mediotergite 2 sculpture: more or less fully sculptured, with longitudinal striation. Outer margin of hypopygium: with a wide, medially folded, transparent, semi–desclerotized area; usually with 4 or more pleats. Ovipositor thickness: about same width throughout its length. Ovipositor sheaths length/metatibial length: 1.4-1.5. Length of fore wing veins r/2RS: 1.1-1.3. Length of fore wing veins 2RS/2M: 1.4-1.6. Length of fore wing veins 2M/(RS+M)b: 0.9-1.0. Pterostigma length/ width: 2.6-3.0. Point of insertion of vein r in pterostigma: clearly beyond half way point length of pterostigma. Angle of vein r with fore wing anterior margin: more or less perpendicular to fore wing margin. Shape of junction of veins r and 2RS in fore wing: distinctly but not strongly angled.

Molecular data.

No molecular data available for this species.

Biology/ecology.

Unknown.

Distribution.

St. Vincent. There is no suggestion that this species occurs in ACG or even Costa Rica.