Gonatopus julianae, Olmi, M. & Virla, E., 2004

Olmi, M. & Virla, E., 2004, Description of two new species of Dryinidae (Hymenoptera: Chrysidoidea) from Argentina, Zootaxa 709, pp. 1-7 : 4-6

Gonatopus julianae sp. nov. ( Figs. 3 , 4 )

Female. Apterous; length 5.31 mm. Head black; sides of clypeus yellow and distal half of mandibles testaceous; antennae brown; mesosoma black; metasoma brown­black; legs brown, with junctions, tarsi and stalks of femora testaceous. Antennae clavate; antennal segments in the following proportions: 10:6:24:14:11:9:8:7:6:7. Head excavated, dull, strongly granulated; frontal line almost complete, partly missing in the anterior half of the frons, where it is substituted by irregular short striae; occipital carina absent; temples distinct; POL = 2; OL = 2; OOL = 10; maxillary palpi with 6 segments; labial palpi with 3 segments. Pronotum dull, hairy, crossed by a strong transverse impression, strongly granulated. Scutum dull, strongly granulated, with two strong lateral apophyses situated on the sides of the scutellum. Scutellum dull, granulated, inclined. Metanotum dull, not hollow behind the scutellum, inclined, strongly granulated. Metathorax + propodeum dull, hairy, completely strongly granulated, with posterior surface not transversely striate, except for a few transverse striae situated near the posterior extremity. Mesopleura and metapleura dull, strongly granulated, not transversely striate. Meso­metapleural suture obsolete. Fore tarsal segments in the following proportions: 16:3.5:5.5:20:30. Enlarged claw ( Fig. 2 ) sickle shaped, with a very small subdistal tooth and a row of 7 lamellae. Segment 5 of front tarsus ( Fig. 2 ) with two rows of 15 + 5 lamellae; distal apex with a group of at least 32 lamellae. Tibial spurs 1, 0, 1.

Male. Unknown.

Type material. Female holotype: Argentina, Catamarca Province, El Rodeo (28°13’ S. 65°52’ W ­ 1250 m.o.s.l), 27.II.1999, E. Virla coll. (in the collection of Instituto de Entomología y Fundación Miguel Lillo, Universidad Nacional de Tucumán, Argentina).

Etymology. The species is named after Miss Juliana Virla.

Remarks. G. julianae belongs to Gonatopus sensu stricto (orbitalis group). The new species can be included in the key to the females of the Neotropical Gonatopus sensu stricto ( Olmi, 1990) by replacing couplet 41 as follows:

41 Head without sculpture ..........................................................................................41’ ­ Head granulated .................................................................................................. 41’’ 41’ Scutum and metanotum without lateral points ................................santiaganus Olmi ­ Scutum with two lateral points; metanotum with two lateral pointed protrusions ......

............................................................................................................ campbelli Olmi 41’’ Scutum with two lateral points; enlarged claw sickle shaped, with a small subapical

tooth situated very far from the distal apex ( Fig. 1 ) .......................... julianae sp. nov. ­ Scutum without lateral points; enlarged claw not sickle shaped, with a small subapi­

cal tooth situated nearer the distal apex (Figs 1227, 1233 in Olmi, 1984; fig. 82 in

Olmi, 1987) ............................................................................................................. 42 42 Metanotum inclined (Fig. 1226 B in Olmi, 1984) .......................... autumnalis Olmi ­ Metanotum horizontal (Fig. 1226 A in Olmi, 1984) ............................................... 43 43 Species with anterior surface of metathorax + propodeum more inclined (Fig. 83 in

Olmi, 1987); labial palpi 2–3­segmented ........................................... tuxtlanus Olmi ­ Species with anterior surface of metathorax + propodeum less inclined (Fig. 1226 A

in Olmi, 1984); labial palpi 2­segmented ......................................... silvestrii Kieffer

Figures

FIGURE 1. Anteon nicolasi sp. nov.: holotype (scale bar: 1 mm).

FIGURE 2. Anteon nicolasi sp. nov.: male genitalia of the holotype (scale bar: 0.01 mm).

FIGURE 3. Gonatopus julianae sp. nov.: holotype (scale bar: 1 mm).

FIGURE 4. Gonatopus julianae sp. nov.: chela of the holotype (scale bar: 0.1 mm).