Gonatopus jaliscanus, Speranza, Stefano, Olmi, Massimo, Guglielmino, Adalgisa & Contarini, Mario, 2019

Speranza, Stefano, Olmi, Massimo, Guglielmino, Adalgisa & Contarini, Mario, 2019, Gonatopusjaliscanus sp. n., a new Pincer wasp from Jalisco, Mexico (Hymenoptera, Dryinidae), ZooKeys 818, pp. 35-42 : 36-38

Gonatopus jaliscanus sp. n. Figs 1, 2

Diagnosis.

Female apterous, with mesosoma black, except prothorax, mesoscutum and mesoscutellum yellow; palpal formula 6/3; pronotum crossed by strong transverse furrow (Fig. 1B); stalk between pronotum and metapectal-propodeal complex about as long as disc of pronotum; mesoscutum laterally with two pointed apophyses (Fig. 1A); meso-metapleural suture obsolete; mesopleuron and metapleuron granulated, not transversely striate; metapostnotum granulated; first abdominal tergum transversely striate; protarsomere 1 shorter than 4; enlarged claw with one small subapical tooth (Fig. 2).

Description.

Female. Apterous (Fig. 1). Length 3.4 mm. Head, prothorax, mesoscutum, mesoscutellum, metasoma and legs testaceous. Antenna testaceous, except antennomeres 8-10 brown. Metanotum, metapectal-propodeal complex, mesopleuron, metapleuron and petiole black. Antenna clavate. Antennomeres in following proportions: 8:6:21:12:10:8:7:5:5:6. Head excavated, shiny, very weakly granulated. Frontal line complete. Occipital carina absent. POL = 2; OL = 2; OOL = 8. Greatest breadth of lateral ocelli shorter than POL (1:2). Palpal formula 6/3. Pronotum shiny, unsculptured, crossed by strong transverse furrow (Fig. 1B). Mesoscutum laterally with two pointed apophyses (Fig. 1A). Metanotum inclined, not transversely striate, not hollow behind mesoscutellum (Fig. 1B). Metapectal-propodeal complex with metapostnotum dull, granulated. First abdominal tergum granulated and transversely striated. Mesopleuron and metapleuron dull, granulated, not transversely striated. Meso-metapleural suture obsolete. Protarsomeres in following proportions: 13:3:5:20:30. Protarsomeres 2 and 3 produced into hooks. Enlarged claw (Fig. 2) with one small subapical tooth and eleven peg-like hairs, in addition to one bristle. Protarsomere 5 (Fig. 2) with two rows of 16 + 5 lamellae extending beyond 0.5 length of protarsomere and distal apex provided with about 17 lamellae. Tibial spurs 1/0/1.

Male. Unknown.

Material examined.

Holotype: female, MEXICO: Jalisco, 8.3 mi. S Autlan, Hwy 80, 5000', 8/vii/1984, on Oaks, Oak Forest, JB Woolley (TAMU (to be deposited in USNM)).

Hosts.

Unknown.

Distribution.

Mexico (Jalisco).

Etymology.

The species is named after the state of Jalisco, where the holotype was collected.

Remarks.

The female of the new species is apterous, with pronotum crossed by a strong transverse furrow (Fig. 1B), the enlarged claw provided of one small subapical tooth (Fig. 2) and the palpal formula 6/3. Because of these characters, G. jaliscanus belongs to group 7 of Gonatopus , according to the systematics proposed by Olmi and Virla (2014). In this species, the head is excavated, the labial palpus is 3-segmented, the mesoscutum has two lateral pointed apophyses situated in the stalk between pronotum and metapectal-propodeal complex (Fig. 1A), the metanotum is sloping anteriorly (Fig. 1B), the meso-metapleural suture is obsolete, the first abdominal tergum is completely transversely striate, the protarsomere 1 is shorter than protarsomere 4 (Fig. 1A). In the Nearctic region, there is only one species of Gonatopus group 7 with the above characters: G. curriei Krombein, 1962. The new species can be included in the key to the females of the Nearctic species of Gonatopus group 7 presented by Olmi (1984) by replacing couplet 30 as follows:

In the Neotropical region, G. jaliscanus is similar to G. forestalis Olmi, 1998. The new species can be included in the key to the females of the Neotropical species of Gonatopus group 7 presented by Olmi and Virla (2014) by replacing couplet 51 as follows: