Anteon hubeni Olmi, Contarini, Capradossi, Guglielmino, 2020

Olmi, Massimo, Contarini, Mario, Capradossi, Leonardo & Guglielmino, Adalgisa, 2020, Anteon hubeni a new species from Ecuador (Hymenoptera: Dryinidae), Biodiversity Data Journal 8, pp. 56613-56613 : 56613

Anteon hubeni Olmi, Contarini, Capradossi, Guglielmino, 2020 sp. n.

Materials

Type status: Holotype. Occurrence: catalogNumber: QCAZ3280 ; recordedBy: M. Huben; individualCount: 1; sex: female; Taxon: order: Hymenoptera; family: Dryinidae; genus: Anteon; specificEpithet: hubeni; taxonRank: species; Location: continent: South America; country: Ecuador; locality: between Pifo and Papallacta ; verbatimElevation: 3431 m; verbatimLatitude: 00°15.56'S; verbatimLongitude: 78°14.48'W; Identification: identifiedBy: Massimo Olmi; Mario Contarini; Leonardo Capradossi; Adalgisa Guglielmino; Event: samplingProtocol: Yellow Pan Trap; eventDate: 27 August-9 September 2018; Record Level: type: physical object; institutionID: Museo de Zoologia, Sección Invertebrados, Pontificia Universidad Católica del Ecuador, Quito, Ecuador; collectionCode: QCAZ; basisOfRecord: Preserved specimen

Description

Female. Fully winged (Fig. 1 a, b); length 3.3 mm. Head black, except mandible testaceous; antenna brown, except antennomeres 4-6 and part of 7 testaceous; mesosoma black; metasoma brown; legs testaceous. Antenna clavate; antennal segments in following proportions: 11:7:9:7:6:6:6:6:6:7. Head (Fig. 1 c) shiny, with frons unsculptured; vertex behind ocelli slightly granulate, between ocelli slightly rugose, without two tracks of oblique keels connecting posterior ocelli to occipital carina; frons without two lateral keels around orbits directed towards antennal toruli (Fig. 1 c); frontal line incomplete, only present in posterior half of frons; occipital carina complete; POL = 7; OL = 3; OOL = 7; OPL = 5; TL = 7; greatest breadth of posterior ocelli about as long as OL. Pronotum shiny, with strong transverse impression between anterior and posterior surface; anterior part of posterior surface without raised transverse carina; posterior surface shiny, sculptured by transverse keels and posteriorly punctate, shorter than scutum (5:20); pronotal tubercle reaching tegula. Mesoscutum (Fig. 1 a) shiny, unsculptured, partly very slightly granulate. Notauli incomplete, reaching approximately 0.5 × length of mesoscutum. Mesoscutellum and metanotum shiny, smooth, slightly punctate, unsculptured between punctures. Metapectal-propodeal complex reticulate rugose, with strong transverse keel between disc and propodeal declivity; propodeal declivity without longitudinal keels (Fig. 1 a). Forewing hyaline, without dark transverse bands; distal part of stigmal vein (2r-rs&Rs) shorter than proximal part (4:9). Protarsomeres in following proportions: 8:2:3:4:12. Protarsomere 5 (Fig. 2 ) with basal part much longer than distal part. Enlarged claw (Fig. 2 ) with proximal prominence bearing one long bristle. Protarsomere 5 (Fig. 2 ) with inner side straight, with two rows composed of approximately 25 lamellae, without interruption to distal apex. Tibial spurs 1/1/2.

Diagnosis

Female of Anteon with frons not provided with lateral keels around orbits directed towards antennal toruli (Fig. 1 c), mesoscutum mostly unsculptured (Fig. 1 a), propodeal declivity not provided with longitudinal keels (Fig. 1 a), protarsomere 1 twice as long as protarsomere 4.

Based on the characters indicated above, A. hubeni sp. n. is close to A. oliveirai Olmi 1984, known from Brazil (female holotype No. 1625 from Minas Gerais, Serra do Caraça, I.1970, F.M. Oliveira leg. (originally in the American Entomological Institute, Gainesville, Florida, now relocated in DBUSU)) (Figs 3 , 4). However, in A. oliveirai , the frons shows two lateral keels around the orbits directed towards the antennal toruli (Fig. 4 d), whereas in A. hubeni , these keels are not present (Fig. 1 c). Following the above description of the new species, the key to the females of the Neotropical Anteon species published by Olmi and Virla (2014) (not reproduced entirely here, because it is composed of 44 couplets) can be modified by replacing the first five couplets as below.

Etymology

The species is named after the collector, Dr. Mike Huben.

Distribution

The new species is known only from the type locality.

Ecology

The new species was collected in a Polylepis forest.

Figures

Figure 2. Chela of holotype of Anteon hubeni, sp. n. Scale bar = 0.1 mm

Figure 3. Chela of holotype of Anteon oliveirai Olmi. Scale bar = 0.2 mm