Key to the Brazilian Amazonian species of Hymenoepimecis

[The males of H. amazonensis sp. n., H. bicolor, H. heteropus, H. kleini sp. n. and H. neotropica are unknown].

1 Female; ovipositor projecting conspicuously beyond apex of metasoma........................................... 2

- Male............................................................................................... 10

2 Face sculptured below the insertion of antennae, with longitudinal carina in the middle part (Fig. 1); head with occipital carina projected, not curved upwards, with a concavity dorsally in the apex (Fig. 3); pronotum with the pocket-like structure reduced longitudinally (Fig. 3); sternite I with a ventral projection, spine-like, posteriorly (Fig. 5)............................. 3

- Face not sculptured below the insertion of antennae, without longitudinal carina in the middle part (Fig. 2); head with occipital carina projected and curved upwards, without a concavity in the apex dorsal (Fig. 4); pronotum with the pocket-like structure not reduced longitudinally (Fig. 4); sternite I with a low, rounded swelling posteriorly (Fig. 6) or with a high, laterally compressed, nasute ventral protuberance (Fig. 7)................................................................ 5

3 Fore wing blackish, with yellowish hyaline band between junction of vein R 1 up to pterostigma until half vein M (Fig. 8); hind

leg black, with base of coxa orange (Fig. 10); tergites I–V uniformly orange, tergites VI+ blacks (Fig. 10); ovipositor 1.1–1.2 × as long as hind tibia..................................................................... H. uberensis sp. n. - Fore wing hyaline (Fig. 9); hind leg with coxa, trochanter and trochantellus orange, with apex of femur, tibia and tarsus brown blackish (Fig. 11); metasoma, with posterior margins of tergites II–V narrowly black, tergites VI+ blacks (Fig. 11); ovipositor 1.3–1.4 × as long as hind tibia............................................................................ 4

4 Tarsal claw with a flat preapical tooth, apex of claw 3.0 × the lenght of the tooth (Fig. 12)................. H. kleini sp. n.

- Tarsal claw with short basal lobe vertically, slightly quadrangular, apex of claw clearly overtaking the lobe (Fig. 13).......................................................................................... H. amazonensis sp. n.

5 Fore wing hyaline (Fig. 9) or hyaline yellowish, with black apex (Fig. 14)........................................ 6

- Fore wing hyaline yellowish, with two blackish bands (Fig. 15) or black with yellowish hyaline band between junction of vein R 1 up to pterostigma until half vein M (Fig. 8)............................................................... 7

6 Fore wing hyaline yellowish, with black apex (Fig. 14); hind leg, with base of coxa orange (Fig. 10); sternite with a high, laterally compressed, nasute ventral protuberance (Fig. 7)..................................... H. bicolor (Brullé, 1846)

- Fore wing hyaline (Fig. 9); hind leg orange, with apex femur, tibia and tarsus blacks (Fig. 11); sternite I with a low, rounded swelling posteriorly (Fig. 6).............................................................. H. manauara sp. n.

7 Ovipositor <1.3 × as long as hind tibia.................................................................... 8

- Ovipositor> 1.4 × as long as hind tibia.................................................................... 9

8 Metasoma black, except tergite I orange (Fig. 18); ovipositor 0.9 × as long as hind tibia.... heteropus (Kriechbaumer, 1890)

- Metasoma with tergites I–V oranges, tergites VI+ blacks (Fig. 10); ovipositor 1.2–1.3 × as long as hind tibia H. ribeiroi sp. n.

9 Pronotum black (Fig. 16); tarsal claw narrow elongated vertically, with apex slightly overtaking the lobe (Fig. 20)............................................................................................... H. duckensis sp. n.

- Pronotum orange, with black anterior part (Fig. 19); tarsal claw with preapical tooth (Fig. 21)............................................................................................ H. neotropica (Brues & Richardson, 1913)

10 Face sculptured below the insertion of antennae, with a longitudinal carina in the middle part (Fig. 1); head with occipital carina projected, not curved upwards, with a concavity dorsally in the apex (Fig. 3); pronotum with the opening pocket-like structure reduced longitudinally (Fig. 3); fore wing black with yellowish hyaline band between junction of vein R 1 up to pterostigma until half vein M (Fig. 8)....................................................... H. uberensis sp. n.

- Face not sculptured below the insertion of antennae, without longitudinal carina in the middle part (Fig. 2); head with occipital carina projected and curved upwards without a concavity in the apex dorsal (Fig. 4); pronotum with the pocket-like structure not reduced longitudinally (Fig. 4); fore wing hyaline (Fig. 9) or hyaline yellowish, with two blackish bands (Fig. 15).... 11

11 Fore wing hyaline (Fig. 9); hind leg orange, with apex of femur, tibia and tarsus blacks (Fig. 11)....... H. manauara sp. n.

- Fore wing hyaline yellowish with two blackish bands (Fig. 15) or black with yellowish hyaline band between junction of vein R 1 up to pterostigma until half vein M (Fig. 8).............................................................. 12

12 Pronotum black (Fig. 16); hind leg black, with base of coxa orange (Fig. 10)........................ H. duckensis sp. n.

- Pronotum orange; hind leg orange, with tibia and tarsus blacks (Fig. 17)............................. H. ribeiroi sp. n.