Paridris gongylos Talamas & Masner

Talamas, Elijah J., Masner, Lubomir & Johnson, Norman F., 2012, Paridris Kieffer of the New World (Hymenoptera, Platygastroidea, Platygastridae), ZooKeys 233, pp. 31-90 : 51-53

Paridris gongylos Talamas & Masner sp. n. Figures 34-37 Morphbank25

Description.

Male body length: 1.17-1.47 mm (n=20).

Color of head: black. Distal margin of clypeus: serrate. Width of clypeus: wider than interantennal process. Lateral corner of clypeus: projecting into acute angle. Development of interantennal process ventrally: not reaching clypeus. Number of mandibular teeth: three. Length of mediofacial striae: not extending above midpoint of eye. Shape of gena in dorsal view: not receding or slightly bulging directly behind compound eye. Striae on gena: weakly indicated. Length of striae on gena: terminating below ventral margin of eye. Form of microsculpture on head: reticulate microfissures. Distribution of microsculpture on head: present throughout dorsal head. Length of OOL: greater than 2 ocellar diameters. Occipital carina above foramen magnum: present. Anterior margin of occipital carina: crenulate. Setation of postgena: dense. Ventral extent of occipital carina: absent below midpoint of foramen magnum.

Color of mesosoma: reddish brown. Dorsal half of pronotal cervical sulcus: present as line of small to minute cells. Ventral half of pronotal cervical sulcus: present as line of large cells. Transverse pronotal carina: absent. Shape of pronotal shoulder in dorsal view: narrow and striplike. Form of pronotal suprahumeral sulcus: punctate rugulose. Macrosculpture of anterior medial mesoscutum: absent. Density of punctation on anterior medial mesoscutum: sparse. Reticulate microfissures on anterior half of medial mesoscutum: present throughout. Pustulate microsculpture on anterior mesoscutum: absent. Density of punctation on posterior medial mesoscutum: absent. Notaulus: percurrent, reaching suprahumeral sulcus as a smooth furrow; abbreviate, not reaching mesoscutal suprahumeral sulcus. Orientation of notauli: converging posteriorly. Shape of notaulus at posterior apex: ovoid. Macrosculpture of mesoscutellum: absent; rugulose laterally, smooth medially. Postacetabular sulcus: crenulate. Mesopleural carina: absent. Punctures on posterodorsal mesepimeral area: absent. Sculpture of mesopleuron anteroventral to femoral depression: areolate to punctate rugose throughout. Sculpture of posterior mesepimeral area: rugulose. Form of metascutellum in male: transverse lamella, posterior margin convex. Paracoxal and metapleural sulci: fused. Posterior margin of metapleuron below propodeal spiracle: with blunt angle near intersection with metapleural sulcus. Setation between metapleural triangle and metapleural sulcus: absent. Sculpture between metapleural triangle and metapleural sulcus: punctate rugose. Sculpture of metapleural triangle: punctate rugose. Setation of metapleural triangle: dense. Anterior propodeal projection: absent. Setation of metasomal depression: absent. Lateral propodeal area: undifferentiated from plical area. Plical carina: absent.

Color of metasoma: yellow anteriorly, brown posteriorly. Macrosculpture of T1: longitudinally strigose. Interstitial sculpture of T1: finely rugulose. Macrosculpture of T2 in male: longitudinally striate throughout. Microsculpture on T2: absent. Setal patch of lateral T2: present in thin line along lateral edge. Posterior margin of transverse sulcus on T2: weakly convex. Carina along posterior margin of transverse sulcus on T2 in male: absent. Microsculpture on T3: absent. Macrosculpture of T3 medially in male: absent. Macrosculpture of T3 laterally in male: absent. Microsculpture on T4: absent. Macrosculpture of T4 in male: absent. Setation of S1: present throughout, moderately dense. Form of S2 felt field: line of dense setae along longitudinal ridge. Macrosculpture of S2 medially: longitudinally striate. Macrosculpture of S3: absent.

Wing development: macropterous. Basal vein in hind wing: spectral. Setation of hind wing: reduced anad of submarginal vein. Length of postmarginalis: punctiform. RS+M in fore wing: spectral.

Diagnosis.

Paridris gongylos is closest morphologically with Paridris pallipes with which it shares the presence of very fine reticulate fissures throughout the dorsal head and mesosoma. The males, from which this species is known, have a crenulate occipital rim that distinguishes them from males of Paridris pallipes .

Etymology.

The Greek word gongylos, meaning “rounded”, is given to this species for the shape of its head and the curves of its metasoma. The epithet is treated as a noun in apposition.

Link to distribution map.

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Material examined.

Holotype, male: UNITED STATES: TN, Blount Co., Top of the World, old growth pine, Great Smoky Mountains National Park, 35°38'N, 83°55'W, 670m, 30. VII– 13.VIII.1998, Malaise trap, H. Alley, OSUC 334015 (deposited in CNCI). Paratypes: UNITED STATES: 22 males, OSUC 181281-181282, 334016, 334018, 334020-334028, 334268-334272 (CNCI); OSUC 181280, 334017, 334019, 334273 (OSUC).