Paridris tenuis (Nixon)

Talamas, Elijah J., Masner, Lubomir & Johnson, Norman F., 2013, Systematics of Trichoteleia Kieffer and Paridris Kieffer (Hymenoptera, Platygastroidea, Platygastridae), Journal of Hymenoptera Research 34, pp. 1-79: 1

publication ID

http://dx.doi.org/10.3897/JHR.34.4714

publication LSID

lsid:zoobank.org:pub:65D86C7A-5BAC-441E-8493-764EEE334BE0

persistent identifier

http://treatment.plazi.org/id/D14ACC00-9CAF-075A-BE68-A794E8689EA7

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Paridris tenuis (Nixon)
status

 

Paridris tenuis (Nixon)  Figures 14, 25, 47-51; Morphbank 24

Paranteris tenuis  Nixon, 1933: 553, 555, 556 (original description. Keyed); Sundholm 1970: 378 (variation).

Paridris tenuis  (Nixon): Masner 1965: 89 (type information, generic transfer).

Description.

Female body length: 1.47-2.05 mm (n=20). Male body length: 1.47-2.14 mm (n=20).

Number of basiconic sensilla on A8: two. Shape of male flagellomeres: longer than wide by a factor less than 2.

Color of head: brown to black; reddish brown. Distal margin of clypeus: serrate. Shape of distal margin of clypeus in anterior view: concave with median bulge. Width of clypeus: greater than width across toruli. Lateral corner of clypeus: projecting into acute angle. Length of mediofacial striae: not extending above midpoint of compound eye. Anterodorsal node on interantennal process: absent. Central keel: absent. Length of OOL: greater than 2 ocellar diameters. Macrosculpture of frons between median ocellus and inner orbit of eye: absent. Patch of microsculpture posterior to lateral ocellus in male: absent. Patch of microsculpture posterior to lateral ocellus in female: absent. Patch of microsculpture between median and lateral ocelli: absent. Microsculpture on dorsal head: pustulate. Microsculpture of posterior gena: present. Shape of gena: not receding posterior to eye. Macrosculpture of posterior vertex: absent. Patch of microsculpture on temples: absent. Occipital carina above occipital foramen: appressed toward ocelli. Anterior margin of occipital carina above occipital foramen: simple. Ventral extent of occipital carina: absent below occipital foramen. Setation of postgena: dense.

Color of mesosoma: brown to black; reddish brown.

Shape of pronotal shoulder in dorsal view: narrow and striplike. Transverse pronotal carina: absent. Dorsal half of pronotal cervical sulcus: present as line of small cells; present as smooth furrow. Ventral half of pronotal cervical sulcus: present as line of large cells. Sculpture of pronotal setal patch: irregular striae to rugulose; punctate.

Anterior notaulus: absent; reaching mesoscutal suprahumeral sulcus as row of punctures. Orientation of notauli: converging posteriorly. Shape of posterior notaulus: ovoid. Microsculpture on anterior half of medial mesoscutum: pustulate. Macrosculpture of anterior medial mesoscutum: absent. Pattern of punctation density on medial mesoscutum: increasing anteriorly. Scutoscutellar sulcus: comprised of short parallel striae. Median carina on posterior mesoscutellum: absent. Posterior scutellar sulcus: comprised of shallow round cells.

Punctures on dorsal part of posterior mesepimeral area: absent. Mesopleural carina: present. Postacetabular sulcus: crenulate; smoothly furrowed. Striae ventrad of mesopleural carina: absent.

Setae on metascutellum: absent. Posterior margin of metascutellum: straight; emarginate; convex.

Setation of metapleural triangle: sparse. Paracoxal and metapleural sulci: fused. Sculpture of posterodorsal part of ventral metapleural area: rugose. Dorsal metapleural area: smooth defined area; coarsely sculptured. Posterior margin of metapleuron below propodeal spiracle: with triangular point above metapleural sulcus.

Anterior projection of the propodeum: absent. Setation of metasomal depression: absent. Posterior projection of the propodeum: lamellate extension formed from lateral propodeal carina. Plical carina: absent. Lateral propodeal area: undifferentiated from plical area.

Length of postmarginal vein: less than half as long as stigmal vein. Rs in fore wing: spectral. Cu vein in fore wing: spectral. M vein in forewing: spectral. Color of costal cell in female: hyaline. Color of sub-radial area in female: hyaline. Color of costal cell in male: hyaline. Color of cubito-medial area in female: hyaline. Color of anal margin in female: hyaline. Color of cubito-medial area in male: hyaline. Color of anal margin in male: hyaline. RS+M in forewing: spectral. Color of sub-stigmal area in male: hyaline. Basal vein in hind wing: spectral. Setation of hind wing: reduced anad of submarginal vein.

Color of metasoma: yellow; pale brown; brown to black. Longitudinal median carina on horn of T1: absent. Armature on posterior surface of T1 horn: present. Form of armature on posterior surface of T1 horn: posteriorly projecting spine. Interstitial sculpture of T1: finely rugulose. Patch of dense fine setae on anterolateral T1: absent. Form of T2 sulcus: transverse furrow. Posterior margin of transverse sulcus on T2: straight. Carina along posterior margin of transverse sulcus on T2 in female: present. Sublateral tergal carina on T2: absent. Microsculpture on T2: absent. Macrosculpture of T2 in female: longitudinally striate. Macrosculpture of T2 in male: longitudinally striate throughout. Carina along posterior margin of transverse sulcus on T2 in male: present. Microsculpture on T3: absent. Macrosculpture of medial T3 in female: longitudinally striate. Macrosculpture of lateral T3 in female: longitudinally striate. Macrosculpture of medial T3 in male: weakly longitudinally striate. Macrosculpture of lateral T3 in male: weakly longitudinally striate. Macrosculpture of T4 in male: absent. Macrosculpture of female T5: absent. Microscupture on female T6: absent. Constriction of apical T6 in female: absent. Macrosculpture of S1: rugose. Setation of S1: medial tuft. Distribution of longitudinal striae on S2: present throughout. Macrosculpture of S2: longitudinally striate. Form of S2 felt field: line of dense setae along longitudinal ridge. Marginal depression on S3: absent. Marginal depressions on S4: absent. Marginal depression on S5: absent.

Diagnosis.

Paridris tenuis  is the only species of continental Africa that has a punctiform postmarginal vein and T6 without an apical constriction.

Link to distribution map.

25

Associations.

Collected on cotton: [ Malvales  : Malvaceae  ].

Material examined.

Lectotype (by present designation), female: SOUTH AFRICA: Eastern Cape Prov., Somerset East, 27. I– 31.I.1931, R. E. Turner, B.M. TYPE HYM. 9.455 (deposited in BMNH). Paralectotype, male: SOUTH AFRICA: BMNH(E)#790070 (deposited in BMNH). Other material: (96 females, 55 males) BURKINA FASO: 1 female, OSUC 181272 (CNCI). CAMEROON: 8 females, 1 male, OSUC 181271, 453743-453750 (CNCI). GAMBIA: 1 female, OSUC 243651 (MZLU). GHANA: 2 females, OSUC 453528-453529 (CNCI). IVORY COAST: 19 females, 4 males, OSUC 453530, 453532-453534, 453536-453551 (CNCI); OSUC 148134, 58719, 58722 (OSUC). KENYA: 7 females, 5 males, CASENT 2042596 (CASC); OSUC 58706, 58708-58717 (OSUC). NIGERIA: 3 females, 2 males, OSUC 181232, 453552-453553 (CNCI); OSUC 237360-237361 (OSUC). SIERRA LEONE: 1 male, OSUC 405078 (MZLU). SOUTH AFRICA: 8 females, 3 males, OSUC 203131 (AEIC); BMNH(E)#790072 (BMNH); OSUC 181230-181231, 181233, 265182, 453596-453600 (CNCI). SWAZILAND: 1 female, 1 male, OSUC 266126-266127 (MZLU). TANZANIA: 9 females, 2 males, OSUC 453601-453611 (CNCI). UGANDA: 1 male, OSUC 453612 (CNCI). ZIMBABWE: 37 females, 35 males, OSUC 181229, 453554-453595, 453613-453614, 453616-453641 (CNCI); OSUC 57115 (OSUC).

Comments.

The posterior margin of the metascutellum, a character used previously in identification keys for this species, is typically emarginate, but may be straight or convex.