Gonatopus maritimus, Olmi, 2007

Olmi, Massimo, 2007, New species of Afrotropical Dryinidae (Hymenoptera: Chrysidoidea), with description of a new genus and a new subfamily, African Invertebrates 48 (2), pp. 199-232 : 217-218

Gonatopus maritimus sp. n.

Figs 18, 19 , 20

Etymology: From the Latin adjective maritimus , because the holotype was collected near the sea.

Description:

Female.

Apterous; length 2.12–2.62 mm (holotype 2.12 mm). Head black, with mandibles and borders of clypeus yellow; antennae brown, with ventral side of segment 1 yellow; mesosoma black; gaster brown; legs brown, with tarsi and articulations testaceous. Head excavated, shiny, without sculpture, except vertex and temples slightly granulated; frontal line complete; occipital carina barely present behind and on sides of ocellar triangle; POL = 1; OL = 2; OOL = 7; temples very long, slightly shorter than half of eyes (7:18). Maxillary palpi 5-segmented; labial palpi 2-segmented. Antennae clavate; antennal segments in following proportions: 5:4:11:7:6:5.5:5:5.5:4.5:7. Pronotum crossed by strong transverse impression, shiny, hairy, slightly granulated, with anterior collar partly without sculpture. Scutum dull, granulated, with two strong lateral points ( Fig. 18 ). Scutellum very inclined. Metanotum hollow behind scutellum ( Fig. 19 ). Metathorax + propodeum dull, slightly granulated, with strong median longitudinal furrow ( Fig. 19 ), with anterior surface slightly granulated and posterior surface strongly transversely striate.In a paratype posterior surface of metathorax + propodeum rugose, with transverse striae not distinctly visible. Mesopleura slightly granulated, not transversely striate. Metapleura transversely striate. Meso-metapleural suture distinct and complete. Fore tarsal segments in following proportions: 11:2:3:14:21. Enlarged claw ( Fig. 20 ) with small subapical tooth and 5 or 6 peg-like hairs (in holotype). Segment 5 of front tarsus ( Fig. 20 ) with inner side proximally not serrate and two rows of 3–5 (proximal) + 16– 21 lamellae; distal apex with group of at least 12 lamellae. Tibial spurs 1, 0, 1 .

Male. Unknown.

Holotype: ^“ SOUTH AFRICA: Western Cape, West Coast National Park , about 2 km S Dainepos Rd. Junction, 2.ii.2006, M. Olmi ”; [red] “ Gonatopus maritimus sp. n. M. Olmi det. 2006, ^” (SAMC).

Paratypes: NAMIBIA: 51 km S Grünau, along Rd B1, C – 1.iii.2006, B – 5.iii.2006, E – 5.iv.2006, reared from a female adult of Aconurella compta (Naudé) , M. Olmi, 1^(NNIC); 27.6 km S Omaruru, along Rd C33, C – 8.iii.2006, B – 12.iii.2006, E – 12.iv.2006, reared from a nymph of Austroagallia cuneata (Cogan) , M. Olmi, 1^(MOLC); same locality label, C – 8.iii.2006, B – 13.iii.2006, E – 12.iv.2006, reared from a nymph of A. cuneata, M. Olmi , 1^(NNIC); same locality label, C – 8.iii.2006, B – 11.iii.2006, E – 12.iv.2006, reared from a nymph of A. cuneata, M. Olmi , 1^(MOLC); NAMIBIA: same locality label, C – 10.iii.2006, B – 14.iii.2006, E – 11.iv.2006, reared from an adult of A. compta, M. Olmi , 1^(MOLC); 6.5 km W Aus, along Rd B4, C – 12.iii.2006, B – 14.iii.2006, E – 13.iv.2006, reared from an adult of A. compta, M. Olmi , 1^(MOLC).

Hosts: In Namibia, Austroagallia cuneata and Aconurella compta (Cicadellidae) ; in South Africa, the holotype has been observed attacking adults of Colistra sp. (Cicadellidae) .

Comparison: G. maritimus belongs to G. incognitus group. Its female is similar to that of G. aethiopicus Olmi, 1984 , but the scutum has two strong lateral points ( Fig. 18 ), not present in G. aethiopicus (Olmi 1984, fig. 1124A).

Figures

Figs 16–19. (16, 17) Gonatopus camposensis sp. n., female holotype: (16) head in frontal view, scale bar = 0.33 mm, (17) chela, scale bar = 0.06 mm; (18, 19) G. maritimus sp. n., female holotype: (18) mesothorax and metathorax + propodeum in dorsal view, scale bar = 0.12 mm, (19) mesosoma in lateral view, scale bar = 0.28 mm.

Figs 20–23. (20) Gonatopus maritimus sp. n., female holotype, chela, scale bar = 0.04 mm; (21–23) G. cornutus (Benoit), female from Uitkyk Pass: (21) mesosoma in dorsal view, scale bar = 0.26 mm, (22) mesosoma in lateral view, scale bar = 0.37 mm, (23) chela, scale bar = 0.04 mm.