Prionyx (Harpactopus) radoszkowskyi
Creators: name: Odintsev, Yuriy N. Danilov Oleg A.
name: Kobets, Anastasia S.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Sphecidae
Prionyx
Prionyx radoszkowskyi

description: Prionyx (Harpactopus) radoszkowskyi (Kohl, 1888)
(Figs 3b, 4d, 5b, 6b, 7b, 8g, 10b, 11b)
Sphex radoszkowskyi Kohl 1888:151, ♀. Syntypes: ♀, “Khiva” [Uzbekistan: Khiva] (MFN).— Kohl 1890:345; Dalla Torre 1897:438; Kazenas 1969:22, 1972:113, 1978:41.— As Priononyx radoszkowskii: de Beaumont 1968:149.— As Prionyx radoszkowskyi: Bohart & Menke 1976:134; Kazenas 1992:25, 1998:122; Esenbekova & Kazenas 2000:10; Kazenas 2001:15, 2002:30, 2004:27, 2008:98; Danilov 2010:45, 2012a:163, 2012b:65; Can & Gülmez 2019:347; Danilov 2019:78; Danilov & Odintsev 2023:433; Pulawski 2024:29.
Sphex guichardi de Beaumont 1967a:273, ♀. Holotype: ♀, « Kayseri: Sultahani» [Turkey: Kayseri Province: Sultanhanı] (BMNH). New synonymy.—As Priononyx guichardi: de Beaumont 1968:150.— As Prionyx guichardi: Bohart & Menke 1976:133; Ljubomirov & Yildirim 2008:26; Yildirim 2014:30; Koçak & Kemal 2015:279; Can & Gülmez 2019:348; Danilov & Odintsev 2023:433; Pulawski 2024:10.
Diagnosis. Both sexes of P. radoszkowskyi closely resemble P. persicus in having the labial palpus extremely shortened, inconspicuous, with the club-shaped labial palpomeres 2–4, the arolia absent, the male F3–F6 with broad placoids, and the female tarsal rake with short, stout, bladelike setae, but differ in having the labial palpomere 1 short: 1–1.5 × as long as the combined length of club-shaped palpomeres 2–4 (P. persicus has the labial palpomere 1 elongate: 3–4 × as long as the combined length of club-shaped palpomeres 2–4).
The male of P. radoszkowskyi differs from P. persicus in having S6 with slightly prominent teeth posterolaterally (P. persicus has S6 with distinctly prominent teeth). It is similar to P. melanotus and P. stschurowskii in habitus, but differs in having labial palpomeres 2–4 extremely short, the placoids on flagellomeres broad, flat, S6 with pair of teeth posterolaterally, and the arolia absent (P. melanotus and P. stschurowskii have the labial palpomeres 2–4 elongate, the placoids on flagellomeres narrow, depressed, the arolia present, and S6 entire, without teeth).
The female of P. radoszkowskyi differs from P. persicus in having the scutum with black erect setae (P. persicus has the scutum with appressed, silvery setae and thick, black, erect setae). It is similar to P. melanotus in habitus, but differs in having the labial palpus extremely shortened, inconspicuous, the arolia absent, and the tarsal rake of foreleg with short, stout, bladelike setae (P. melanotus has the labial palpomeres 2–4 elongate, the arolia present, and the tarsal rake with long, bladelike and long, fine, hairlike setae).
Description. Head. Labial palpomeres 2–4 extremely shortened, club-shaped, palpomere 1 short: 1–1.5 × as long as combined length of club-shaped palpomeres 2–4. Maxillar palpomere 6 inconspicuous. Vertex and occiput slightly shiny, microsculptured and punctate, with black erect setae. Gena shiny, punctate. Mesosoma with black erect setae. Pronotum slightly angulate laterodorsally. Scutum punctate and slightly obliquely rugose on disk. Scutellum moderately longitudinally depressed, rugose. Metanotum moderately tuberculate dorsally. Mesopleuron, metapleuron, and propodeum areolate-rugose. Wings dark; veins black; recurrent vein II of forewing received by submarginal cell III. Legs. Claws with 2 ventral teeth; arolia absent.
Male. Body length 15–24 mm. Head. Labrum trapeziform; Clypeus slightly emarginate anteriorly, glabrous and shiny along apical margin. Face densely punctate and microsculptured with long, black, erect setae. F3–F6 with broad, flat placoids. Metasoma. S6 with slightly prominent teeth posterolaterally.
Female. Body length 17–25 mm. Head. Clypeus entire, trapeziform; clypeal disk moderately convex, with fine rounded depression anteriorly; clypeus laterally and posteriorly, subantennal sclerite, and paraocular area with sparse appressed, silvery setae, not concealing integument. Legs. Tarsal rake of foreleg with short, stout, bladelike setae.
Justification of new synonymy. Having studied the photographs of the paratypes of Sphex guichardi from MZL (two female specimens), as well as the Beaumont’s description, we did not find any differences from radoszkowskyi.
Material examined. KAZAKHSTAN. Aqmola Province: Zharkain District, near Shoindykol Lake [50°27’N, 67°22’E], 24.VI.1957, V. Rudolf (1 ♂, ZISP); Kyzylorda Province: Shieli District, Baygekum [44°18’N, 66°28’E], 15.V.1908, L. Wollman (1 ♂, ZISP). TURKMENISTAN. Ahal Province: Kirpili, 100 km NE Serdar [formerly Kyzyl-Arvat] [39°35’N, 57°13’E], 11–12.V.1953, Kirjakova (1 ♂, ZISP); Daşoguz Province: Ortakui well, 240 km SW Daşoguz [40°41’N, 57°29’E], 26.V.1953, E. Arens (1 ♂, ZISP); 22.V.1953 (1 ♂, ZISP); 29.V.1953 (2 ♂, ZISP); 19.V.1953 (2 ♂, ZISP); Mary Province: Imeni Chapayeva [formely Ymam Baba] [36°42’N, 62°27’E], 03– 08.V.1912, Koshantschikow (2 ♀, ZISP); 12–14.V.1912 (1 ♀, ZISP). UZBEKISTAN. Jizzakh Province: Gallaorol District, Lalmikor [39°56’N, 67°27’E], 26.VII.1930 (1 ♀, ZISP); Qashqadaryo Province: Kamashi District, Kamashi [38°49’N, 66°27’E], 28.VI.1931, V. Gussakovskij (4 ♀, ZISP).
Distribution. Arid and semi-arid areas from Central Asia to Anatolia (Kazakhstan, Turkey, Turkmenistan, Uzbekistan).
description: Published as part of Odintsev, Yuriy N. Danilov Oleg A. & Kobets, Anastasia S., 2024, A taxonomic study on the genus Prionyx Vander Linden, 1827 (Hymenoptera: Sphecidae: Prionychini). Subgenus Harpactopus F. Smith, 1856, pp. 263-298 in Zootaxa 5551 (2) on pages 277-279, DOI: 10.11646/zootaxa.5551.2.3, http://zenodo.org/record/14421160