Rhynchophion, ENDERLEIN, 1912

Gauld, Ian D. & Janzen, Daniel H., 2004, The systematics and biology of the Costa Rican species of parasitic wasps in the Thyreodon genus-group (Hymenoptera: Ichneumonidae), Zoological Journal of the Linnean Society 141 (3), pp. 297-351 : 300-301

THE GENUS RHYNCHOPHION ENDERLEIN

Rhynchophion Enderlein, 1912: 630 . Type species: Rhynchophion odontandroplax Enderlein , by original designation.

Diagnosis: Large, stout insects, fore wing length 18.0– 29.0 mm, black or red-brown in colour with blackish or mottled wings. Head in anterior view with labiomaxillary complex elongate, projecting ventrally by about 0.5 of length of head; maxillary palpi slender; clypeus with margin out-flared, thin, centrally with an obtuse point; ocelli small, the lateral ones separated from eye by more than their own diameter; occipital carina complete dorsally, ventrally not reaching hypostomal carina. Antenna short and stout, setaceous, the central flagellomeres transverse. Pronotum unspecialized; notauli obsolescent; lateral part of metanotum swollen and carinate; propodeum convex, but not greatly inflated, posteriorly mediodorsally without a median longitudinal furrow. Hind coxa moderately large, its apex projecting beyond hind margin of propodeum. Fore wing with abscissa of 1 m-cu distal to bulla slightly shorter than abscissa of M between 2 mcu and 3 rs-m. Metasoma with tergite II small, very conspicuously shorter than tergite III; male with dorsal margin of clasper notched; aedeagus with a sharp subapical lateral keel; male subgenital plate strongly

KEY TO SPECIES OF THE THYREODON GENUS- GROUP PRESENT IN COSTA RICA

1. Head, in anterior view, with labiomaxillary complex elongate, projecting well below labrum, and with maxillary palpi slender ( Fig. 1 ); propodeum moderately large, in profile not conspicuously larger than metapleuron ( Fig. 32 ); tergite II in profile small, shorter than tergite III ( Fig. 1 )................................... ( Rhynchophion ).......2

– Head, in anterior view, with labiomaxillary complex not exceptionally elongate, but with maxillary palpomere II strongly inflated, subglobose; propodeum in profile exceptionally large, conspicuously larger than and overhanging metapleuron ( Figs 27–31 ); tergite II in profile longer than tergite III ( Fig. 2 ).................... ( Thyreodon )...........3

Figures

Figure 1. Whole insect, lateral. Rhynchophion flammipennis. Illustration reproduced with the kind permission of the American Entomological Institute.

Figure 2. Whole insect, lateral. Thyreodon cyaneus. Illustration reproduced with the kind permission of the American Entomological Institute.

Figures 27–32. SEM photographs of propodeum lateral. 27, Thyreodon darlingi; 28, T. morosus; 29, T. walkerae; 30, T. zitaniae; 31, T. rivinae; 32, Rhynchophion flammipennis.