Gonatopus sandovalae, Guglielmino & Olmi & Speranza, 2016

Guglielmino, Adalgisa, Olmi, Massimo & Speranza, Stefano, 2016, Description of Gonatopus sandovalae (Hymenoptera: Dryinidae), a new species from Ecuador, Florida Entomologist 99 (3), pp. 437-439 : 438-439

Gonatopus sandovalae sp. nov. ( Figs. 1–5 )

DESCRIPTION

Holotype female. Apterous ( Fig. 1 ). Length 3.4 mm. Body testa- ceous-ferruginous, except petiole black; antenna brown, except segments 1 and 2 testaceous and segment 10 whitish. Antenna clavate; antennal segments in following proportions: 8:6:14:9:7:6:6:6:5:10. Head very excavated, glossy, unsculptured; frontal line complete; occipital carina absent; temple absent; POL = 1; OL = 1; OOL = 6. Palpal formula 5/2. Pronotum glossy, unsculptured, crossed by strong transverse impression. Scutum glossy, unsculptured, with 2 lateral pointed apophyses ( Figs. 1 and 3 ). Scutellum inclined. Metanotum inclined, unsculptured, not transversely striate, not hollow behind scutellum ( Figs. 2 and 4 ). Meso- and metapleuron transversely striate. Metathorax + propodeum glossy, with anterior surface unsculptured; posterior surface transversely striate. Meso-metapleural suture obsolete. Protarsal segments in following proportions: 14:3:4:14:22. Enlarged claw ( Fig. 5 ) with 1 large subapical tooth and 1 row of 5 lamellae. Segment 5 of protarsus ( Fig. 5 ) with 2 rows of 4+11 lamellae; distal apex with at least 15 lamellae. Tibial spurs 1/0/1.

Male: Unknown.

TYPE MATERIAL

HOLOTYPE female, ECUADOR: Los Rios Province, Centro Científico Rio Palenque , 180 m, Col. MAB-UNESCO, 10-I-1981, col. S. Sandoval ( QCAZ).

ETYMOLOGY

The species is named afer the collector, Ms. Sonia Sandoval.

REMARKS

The characters distinguishing the new species are as follows: female apterous ( Figs. 1 and 2 ); palpal formula 5/2; pronotum crossed by strong transverse impression ( Figs. 2 and 4 ); scutum with 2 lateral pointed apophyses ( Figs.1 and 3 ); metanotum not hollow behind scutellum ( Figs. 2 and 4 ); meso-metapleural suture obsolete; posterior surface of propodeum strongly transversely striate ( Figs. 1, 3, 4 ); enlarged claw with lamellae and 1 large subapical tooth ( Fig. 5 ). Because of the above characters, G. sandovalae belongs to Gonatopus group 10 (see Introduction of this paper). Gonatopus sandovalae is close to G. canadensis ( Olmi 1984) and G. malkini ( Olmi 1991) . The main differences among these 3 species regard the sculpture of the scutum: with 2 lateral pointed apophyses in G. sandovalae ( Figs. 1 and 3 ); without lateral apophyses in G. canadensis and G. malkini (Plate 154D in Olmi & Virla 2014).Following the description of G. sandovalae , the key to the females of the Neotropical species of Gonatopus group 10 published by Olmi & Virla (2014) can be modified by replacing couplet 4 as follows:

4.— Scutum with 2 lateral pointed apophyses ( Figs. 1 and 3 )............................................... G. sandovalae sp. nov. 4’.— Scutum without lateral pointed apophyses (Plate 154D in Olmi & Virla 2014)............................................... 4*

4*.— Metathorax + propodeum with anterior region granulated and disc with strong track of median longitudinal furrow. G. canadensis (Olmi)

4*’.— Metathorax + propodeum with anterior region alutaceous and disc without strong track of median longitudinal furrow..............

................................................................................................. G. malkini (Olmi)

Figures

Figs. 1–5. Female holotype of Gonatopus sandovalae sp. nov.: habitus in dorsal (1) and lateral (2) view;scutum, scutellum and metathorax + propodeum in dorsal view (3); mesosoma in lateral view (4); chela (5). Scale bar 1.28 mm for 1 and 2, 0.53 mm for 3, 0.58 mm for 4, and 0.14 mm for 5.