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 : 18-20

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 S 2: 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.

Figures

Figures 14 - 17. 81 14 Paridris tenuis (Nixon), Venation of forewing, dorsal view, female (CASENT 2042596) 15 Paridris pantex sp. n., Venation of forewing, dorsal view, female (FBA 129283) 16 Paridris taekuli sp. n., Venation of forewing, ventral view, female (OSUC 266150) 17 Paridris anikulapo sp. n., Venation of forewing, dorsal view, female (OSUC 265247).

Figures 24 - 27. 83 24 Paridris bifurcata (Dodd), T 4 - T 6, dorsal view, female (OSUC 181076) 25 Paridris tenuis (Nixon), T 3 - T 6, dorsal view, female (OSUC 58708) 26 Paridris taekuli sp. n., T 3 - T 6, dorsal view, female holotype (OSUC 266150) 27 Paridris xestos sp. n., T 4 - T 6, dorsal view, female (FBA 057544).

Figures 47 - 51. 89 Paridris tenuis (Dodd), female (CASENT 2042596) 47 Head and mesosoma, lateral view 48 Lateral habitus 49 Dorsal habitus 50 Head, anterior view 51 Mesoscutellum, metascutellum, propodeum, T 1 - T 2, dorsolateral view.