Pyropteron icteropus ( Zeller, 1847 ), Bartsch & Pühringer & Milla & Lingenhöle & Kallies, 2021

Bartsch, Daniel, Pühringer, Franz, Milla, Liz, Lingenhöle, Arthur & Kallies, Axel, 2021, A molecular phylogeny and revision of the genus Pyropteron Newman, 1832 (Lepidoptera, Sesiidae) reveals unexpected diversity and frequent hostplant switch as a driver of speciation, Zootaxa 4972 (1), pp. 1-75: 33-34

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Pyropteron icteropus ( Zeller, 1847 )

stat. rev.

Pyropteron icteropus ( Zeller, 1847)   stat. rev.

( Figs 15 View FIGURES 11–18 , 100–102 View FIGURES 91–105 , 110, 111 View FIGURES 106–112 , 117, 118 View FIGURES 113–119 )

Sesia icteropus Zeller, 1847   : Isis, 40 (6): 403. Syntypes: 3♂, Italy, Sicily, Syracus (lost).

This taxon was considered a distinct species and placed in Synansphecia   by Laštůvka (1990b), later it was treated a subspecies of P. doryliformis   by several authors (e.g. Špatenka et al. 1999). It is confirmed in species rank based on its distinct barcode sequences and details of the morphology.

Diagnosis. Compared with P. doryliformis   , P. icteropus   is more slender and usually smaller (some specimens with wingspans of only 12–13 mm); the antenna is dorsally black, rarely with some yellowish scales subapically (in P. doryliformis   except for the black tip more or less densely covered with yellow in male, or red in female); the inner margins of the tegulae broad yellow in male, red in female; the thorax, legs and abdomen with clearly defined markings on black ground colour, yellow in male and dark red in female (in P. doryliformis   completely dusted with ochreous brown scales in males, diffuse marked and dusted with red in females); the anal margin of the forewing almost always completely red, seldom only basally red (in P. doryliformis   without any red in males, dusted with red in females). For differentiation from P. ceriaeformis   see there. The coloration of the yellow markings of the male abdomen varies distinctly, as shown in Figs 49–50 View FIGURES 47–55 , to a lesser degree in females.

Genitalia. The male genitalia of P. icteropus   differ from those of P. doryliformis   in small details; the gnathos flaps are somewhat narrower and the distal portion of the setaceous part of the crista sacculi is less prominent and more sparsely covered with setae. The differences are clearer in the female genitalia, which have the corpus bursae slightly pear-shaped with indistinct signum near ductus bursae, which consists of numerous scattered microscopically small dots (corpus bursae round, signum a round sclerotized plate in P. doryliformis   and P. ceriaeformis   ).

Barcodes. P. icteropus   is sister to the P. euglossaeformis   clade.

Biology and habitat. Hostplants of P. icteropus   are several bitter-tasting species of Rumex   such as R. conglomeratus   , R. crispus   , R. maritimus   and R. pulcher   ( Laštůvka 2007, our own observations). The moth occurs in various open habitats, preferably on meadows, pastures and ruderal sites with stands of the hostplants.

Distribution. Endemic to Sicily. It is unlikely to be found in other parts of southern Italy as numerous Pyropteron   larvae from Apulia from various localities and different species of Rumex   produced several hundred specimens of P. chrysidiformis   , but not a single P. icteropus (AL)   .

Specimens examined. 1♂ ( Fig. 100 View FIGURES 91–105 ), 4♀ ( Fig. 102 View FIGURES 91–105 ), Italy, Sicily, Prov. Palermo , 5 km W Ficuza, 500–600m, e.p. ex Rumex crispus   , larvae 16. V   ., adults 6.–15.VI.2007, leg. DB; 5♂ ( Fig. 101 View FIGURES 91–105 ), Italy, Sicily, Prov. Palermo, Le Madonie, 4km E Scillato , 340m, 6. VI   .2013, leg. DB (1♂ SMNS-DNA-072); 1♂, Italy, Sicily, Prov. Palermo , Le Madonie, 1km NW Sclafani Bagli, 470m, 4. VI   .2013, leg. DB; 5♂, Italy, Sicily, Prov. Palermo , Le Madonie, vic. Caltavuturo, 500m, 4. VI   .2013, leg. DB; 2♂, Italy, Sicily, Prov. Palermo , Le Madonie, 3km NNW Collesano, 400m, 7. VI   .2013, leg. DB; 1♂, Italy, Sicily, Prov. Palermo , Le Madonie, Castelbuono, NW Monte Feno, 450m, 5. VI.2013, leg. DB   ; 1♂, Prov. Palermo, Castronuovo , vic. Lago Fanaco, 630m, 6. VI   .2013, leg. DB (SMNS-DNA-073) (CDB). 2♂, 2♀, Taormina, 1942/1943 ( Bartsch gen. preps. 2019-31, 2019-32, 2019-33, 2019-34) ( Figs 110, 111 View FIGURES 106–112 , 117, 118 View FIGURES 113–119 )   ; 2♂, Italy, Sicily, Ragusa , 450m, 7.–8. VI   .1993, leg. Petersen; 2♂, Italy, Sicily, Etna, Milo, 18. VII   .1996, ex coll. Bruer; 3♂, 6♀, Sicily, Mt Cuccio , VI   .1930, leg. Höfer (SMNS); 1♂, Italy, Sicily, Madonie SE Castelbuono, 450 m, 5. VI   .2001, leg. FP; 1♂, Italy, Sicily, Valdinte NW Francavilla, 550 m, 7. VI   .2001, leg. FP; 8♂, Italy, Sicily, CT, Castiglione di Sicily, 550 m, 7. VI   .2001, leg. FP (DNAtax 02587, photo 47/3/8); 1♂, Italy, Sicily, CT, S Randazzo, 890 m, 6. VI   .2001, leg. FP; 2♂, Italy, Sicily, ME, Cesaro, 6. VI   .2001, leg. FP (photo 46/6/32-34); 4♂, Italy, Sicily, PA, Campofelice di Fitalia , 860 m, 11. VI   .2001, leg. FP; 2♂, Italy, Sicily, PA, Ficuzza, 4. VI   .2001, leg. FP; 3♂, ibid., 590 m, 9. VI   .2001, leg. FP; 1♂, ibid., Alpe Cucco, 1050 m, 8. VI   .2001, leg. FP (photo 47/3/36-4/6); 3♂, Italy, Sicily, PA, Mezzojuso, 610 m, 11. VI   .2001, leg. FP (BOX-2219 F09, DNAtax 02588) (CFP).


Royal British Columbia Museum - Herbarium


Mykotektet, National Veterinary Institute














Pyropteron icteropus ( Zeller, 1847 )

Bartsch, Daniel, Pühringer, Franz, Milla, Liz, Lingenhöle, Arthur & Kallies, Axel 2021


Capuse 1973

Sesia icteropus

Zeller 1847

P. doryliformis

Ochsenheimer 1808