Polyphrix cristata, Nogueira & Aguiar, 2005

Nogueira, Liana K. & Aguiar, Alexandre P., 2005, Generic definition, key, and two new species of Polyphrix Townes (Hymenoptera: Ichneumonidae: Cryptinae) from the Atlantic Forest, Zootaxa 1010 (1), pp. 25-35 : 30-31

publication ID

https://doi.org/ 10.11646/zootaxa.1010.1.3

publication LSID

lsid:zoobank.org:pub:6D5E4C45-3A3B-456E-A9BC-BE40822AD41E

DOI

https://doi.org/10.5281/zenodo.5048980

persistent identifier

https://treatment.plazi.org/id/03AD87FA-364C-9D38-FF5D-FEE8FDBF763F

treatment provided by

Felipe

scientific name

Polyphrix cristata
status

sp. n.

Polyphrix cristata , sp. n. ( Figs 4–6 View FIGURES 4–6 , 8, 12, 15, 18 View FIGURES 7–19 )

Etymology. The specific epithet cristata is from the Latin crista, meaning ridge, a reference to the large, laminar dorso­lateral projection on the pronotum.

Description. Holotype female. Length of fore wing: 8.5 mm. Head: clypeus 1.4 wider than high, strongly convex, projecting ventrally, without median tooth, sparsely weakly punctate; mandible teeth of equal length, ventral tooth slightly more robust than dorsal tooth; supra­antennal area near ocelli slightly convex, with distinct median longitudinal carina, ventrally concave; occipital carina moderately high, sharp, uniform; malar space 0.5 longer than basal width of mandible. Mesosoma: epomia absent; pronotum with long, strong wrinkle along posterior margin of collar, fading before reaching ventral corner, latero­centrally with three weak transverse wrinkles, dorsally with submarginal lamellar protuberance clearly exceeding dorsal margin mid­length ( Figs. 4 View FIGURES 4–6 , 12 View FIGURES 7–19 ), projecting upwards ( Fig. 15 View FIGURES 7–19 ); mesoscutum and scutellum glabrous, polished, shiny; mesoscutum subcircular; notaulus delicate, faint, in dorsal view distinct approximately in the anterior 0.3, in lateral view swollen median lobe of mesoscutum makes notaulus visible up to slightly past center of mesoscutum; scuto­scutellar groove smooth, polished; mesopleuron smooth, shiny; sternaulus upcurved, incomplete, reaching about 0.4 the distance to middle coxa; epicnemial carina restricted to ventral 0.60 of mesopleuron, almost straight, mesopleuron dorsad of carina giving rise to short, transverse strigulation; mesopleural suture straight, narrow and crenulate; metapleuron smooth, shiny, with sparse hairs; all tibiae with numerous bristles; fore and middle pre­apical tarsi weakly bilobed; hind femur 7.2 times as long as wide. Propodeum: transverse furrow at base smooth, shiny; distance from anterior transverse carina to anterior margin 1.00 longer than width of transverse furrow at base, measured centrally; scarcely pilose, its anterior margin laterally prominent, centrally concave; anterior transverse carina strong, straight, complete, area in front of it smooth, shiny, with sparse hairs, area behind it with about 10 strong, complete or incomplete, sharp, transverse wrinkles ( Figs. 5 View FIGURES 4–6 , 18 View FIGURES 7–19 ); posterior transverse carina and apophyses absent; spiracle about twice as long as wide. Fore wing crossveins cu­a and Cu1b vertical, straight; vein 2­Cu1 0.2 length of crossvein Cu1b; ramellus absent; areolet rectangular, 1.80 wider than high; 3rs­m as long as 2rs­m, both vertical; bulla of fore wing crossvein 3rs­m on posterior 0.75 of vein. Hind wing vein 1­Cu1 about 0.8 length of crossvein cu­a; vein 2­1A reaching about 0.7 the distance to posterior margin. Metasoma: first tergite smooth, shiny, with very sparse pilosity, spiracle at center, prominent; metasomal tergite 1 about 5.8 longer than wide; tergite 2 smooth, shiny, with sparse pilosity, apex 2.50 as wide as base; thyridium longer than wide; tergites 3–8 smooth, shiny, pilose; ovipositor sheath 0.75 as long as hind tibia; ovipositor slender, sparsely punctate, laterally strongly compressed; dorsal valve with nodus, ventral valve with nine apical teeth, the last 3–4 faint ( Fig. 6 View FIGURES 4–6 ).

Color. Head, pronotum and mesoscutum generally black, remainder of mesosoma deep yellow (239,194,014), metasoma mostly black ( Fig. 15 View FIGURES 7–19 ). Head: scape dark brown; pedicel, flagellomeres dark brown (045,030,030), except 9 apical and 17 dorsal half and 10–16, white; supraclypeal area, clypeus, mouth parts, base of mandible and malar space, white; apex of mandible dark brown. Mesosoma: pronotum black, collar and the distance from middle to ventral corner, white; mesoscutum, scutellum dorsally, and postscutellum, black; scutellum apex and lateral 0.3, and tegula, pale yellow (215,210,155); axillary trough of mesoscutum with ventral, subcircular, dark spot near scutellum; area in front of anterior carina of propodeum brownish, except centrally narrowly yellowish, area behind anterior carina with large, brownish, undefined spot on each side; fore and mid coxae yellow (255,216,063), hind coxa deep yellow; hind trochanter, trochantellus and femur, dark brown; hind tarsi pale yellow; all apical tarsomeres light brown (155,135,060). Metasoma: black; first metasomal tergite basal 0.23 yellowish, remainder black, apical margin narrowly white; tergites 1–7 posterior margin white, tergite 8 black; ovipositor dark red (095,055,045); sheaths dark brown; wings hyaline.

Comments. Similar to P. atlantica sp. n., from which it can be differentiated by showing para­ocular white stripe complete (vs. interrupted from supraclypeal area to posterior orbit); pronotum with strong and distinct submarginal protuberance (vs. weak); anterior margin of propodeum centrally clearly concave (vs. weakly sinuous); transverse furrow at base of propodeum distinctly wider than width of propodeum between anterior margin and anterior transverse carina (vs. centrally narrower) (compare Figs. 17 and 18 View FIGURES 7–19 ); first metasomal tergite 5.8 longer than wide (vs. 4.8); ovipositor slender, dorsal valve with nodus.

Male. Unknown.

Host. Unknown.

Type material. Holotype female. “ Brazil: ES, Santa Maria de Jetibá: Fazenda Paulo Seick, 06–12.XII.2002, Malaise, MTTavares & COAzevedo & eq. col.” Right antenna apical half and left antenna apex, hind right tarsomeres 3–5, missing; metasoma crumpled; otherwise in good shape. Deposited in the collection of the Universidade Federal do Espírito Santo, Brazil.

Distribution. Brazil (ES).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Ichneumonidae

Genus

Polyphrix