Thoron rex, JOHNSON & MASNER, 2004

JOHNSON, NORMAN F. & MASNER, LUBOMIR, 2004, The Genus Thoron Haliday (Hymenoptera: Scelionidae), Egg-Parasitoids of Waterscorpions (Hemiptera: Nepidae), with Key to World Species, American Museum Novitates 3452, pp. 1-16 : 13-14

Thoron rex , new species

Figure 18

DESCRIPTION: Length 2.0 mm. Female A4 subequal to or shorter than A3; clava robust, 2.9 times longer than wide; apex of A1 distinctly extending above top of head (lateral view with A 1 in flexed position); female A2 brown, A3–A4 bright yellow, ocelli moderately large, lateral ocellus separated from inner orbit by approximately one diameter of posterior ocellus; contrasting with dark brown A5–A7; central portion of mesoscutum and scutellum at most with minute setigerous punctures (fig. 18); notaulus very short, not extending anteriorly to level of posterior margin of tegula, simple, without crenulae; mesoscutum with only long semierect bristles and no micropilosity; metapleuron sparsely setose anteriorly, posterior portion of metapleuron and lateral face of propodeum nearly glabrous; marginalis not thickened, as wide as submarginal or basal portion of stigmal vein; postmarginal vein clearly developed, longer than stigmal vein; dorsellum unarmed medially; dorsal surface of propodeum excavate medially; all coxae yellow; hindfemur almost entirely honey­yellow to yellow, concolorous with apex of coxa; T1 without hump, longitudinally costate throughout; costae on T2 reaching at least to posterior third of tergite; T2 distinctly shorter than T3; T3 wider than long.

Male unknown.

ETYMOLOGY: From the Latin, rex , meaning king, emphasizing its similarity with T. dux .

MATERIAL EXAMINED: Holotype female: BO­ LIVIA: Santa Cruz, Andres Ibañez, Potrerillo , 17 ° 40 ̍ S, 63 ° 27 ̍ W, 438 m, 13–16.v.1997, L. Masner, yellow pan traps, OSUC 77432 ( CNC type no. 22865). Paratypes: 1♀ with same data as holotype, OSUC 77433. Santa Cruz, Andres Ibañez, El Hondo, pools, 17 ° 40 ̍ S, 63 ° 27 ̍ W, 375 m, 13– 16.v.1997, L. Masner, yellow pan traps, 1♀ ( OSUC 77434 ) ; 13 with same locality data, collected 15.v.1997 ( OSUC 146632 ) . Santa Cruz, Ichilo, ‘‘ El Chore’ ’ pools, 17 ° 01 ̍ S, 64 ° 11 ̍ W, 253 m, 9–11.v.1997, L. Masner, yellow pan traps, 1♀ ( OSUC 77435 ) .

Figures

Figs. 15–20. 15, Thoron dayi, n.sp., mesosoma, dorsal view; 16, T. longicornis Masner and Huggert, head and mesosoma, dorsal view; 17, T. dux, n.sp., head and mesosoma, dorsal view; 18, T. rex, n.sp., head and mesosoma, dorsal view; 19, T. lautus (Masner), posterior mesosoma, dorsal view; 20, T. lautus (Masner), metapleuron, propodeum, and T1 horn, lateral view. Scale bar in millimeters.