Oxythyrea cinctella, (Shaum, 1841)

Vondráček, Dominik, Hadjiconstantis, Michael & Šípek, Petr, 2018, Immature stages of the genus Oxythyrea (Coleoptera: Scarabaeidae: Cetoniinae) with a key to third instar larvae, and notes on the biology of the genus, Zootaxa 4486 (4), pp. 401-434 : 417-418

O. cinctella (Shaum, 1841)

( Figs. 3C ; 4C, L ; 5C, L ; 6C, L ; 7C, I ; 8F, L ; 10C, L ; 11C, K ; 12C, L )

References to immature stages. Golovjanko (1936): p. 31; Medvedev (1952): pp. 172–173, Figs. 366–369; Giljarov (1964): p. 325, Figs. 250: 5–6.

Material studied. 10 L3 reared ex adults collected at: Greece, Thessaly, Mount Ossa, N°39.867, E°22.733, 13.– 20.vi.2006, H. Podskalská, P. Šípek lgt.; 20 L3 reared ex adults collected at: Greece, Thessalia and Macedonia, 2007, J. Hájek lgt. (no further data); 3 L3 reared ex adults collected at: Turkey, Erzurum, Ispir, N°40.48361, E°40.99472, 6.vii.2011, F. Šťáhlavský lgt.; 3 L3 reared ex adults collected at: Armenia, river valley Azat, S of Garni, v.2013, Dohnal lgt.; 3 L3 reared ex adults collected at: Macedonia, N of Pepelishte, ca 120–170 m, N°41.53694, E°22.13833, 19.v.2015, O. Kouklík, D. Král, P. Šípek, D. Vondráček lgt.

Body whitish, setose fields of each (sub)lobe yellowish-brown. Body length 16.5–19.5 mm. Cranium: width 2.25–2.54 mm, height 1.32–1.47 mm. Cranium yellowish to yellowish-brown, smooth; semi-circular in shape, dorsally flattened (length of dorsal straight portion of cranial margin slightly less than one half of maximum width of cranium). Chaetotaxy as in Table 1. Epipharynx: Zygum with 13–18 stout conical setae and 8–14 similarly shaped setae at its proximal base. Chaetoparia with 63–77 and 36–53 setae on right and left side respectively. Acanthoparia with 4–7 ovate setae, 1 or 2 distal setae elongated. Stridulatory area of mandibles with 13–20 transverse ridges, stridulatory ridges of proximal ¼ narrow and irregular. Apical scissorial tooth of left mandible about two times larger than subapical tooth, but not falcate. Transverse proximal row of setae and sensilla on ligula composed of 11–15 combined stout lanceolate setae and campaniform sensilla. Thoracic legs with stout (spinelike) or long hair-like setae, the hair-like setae are well developed, never slender. Respiratory plate of spiracle with 10–12 holes across diameter. Raster monostichous composed of single horseshoe-like row of 18–27 pali, septula broadly ovate, opened posteriorly, almost as wide as long. Tegillar setae variable in size, some about ½ of the size of palus, mostly about three times size of palus, numerous long setae present as well. Tegilla evenly covered with setae (average distance between two setae about two to three times of length of palus), tegilla fused, campus absent. Dorsal parts of last abdominal segment with prominent ring of dense long setae surrounding circular field of short ovate-like setae.

Figures

FIGURE 3a–i. Habitus of third instar Oxythyrea larvae. a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. pantherina; h, O. subcalva; i, O. tripolitana.

FIGURE 4a–r. Cranium of third instar Oxythyrea larvae (a–i) and antenna of third instar Oxythyrea larvae, dorsal aspect (j–r). a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. pantherina; h, O. subcalva; i, O. tripolitana; j, O. abigail; k, O. albopicta; l, O. cinctella; m, O. dulcis; n, O. funesta; o, O. noemi; p, O. pantherina; q, O. subcalva; r, O. tripolitana. Scale bars = 1 mm (a–i); 0.5 mm (j–r).

FIGURE 5a–r. Epipharynx of third instar Oxythyrea larvae (a–i) and antenna of third instar Oxythyrea larvae, ventral aspect (j–r). a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. pantherina; h, O. subcalva; i, O. tripolitana; j, O. abigail; k, O. albopicta; l, O. cinctella; m, O. dulcis; n, O. funesta; o, O. noemi; p, O. pantherina; q, O. subcalva; r, O. tripolitana. Scale bars = 0.5 mm.

FIGURE 6a–q. Maxillo-labial complex of third instar Oxythyrea larvae, dorsal view (a–i) and maxillary stridulatory teeth of third instar Oxythyrea larvae (j–q). a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. pantherina; h, O. subcalva; i, O. tripolitana; j, O. abigail; k, O. albopicta; l, O. cinctella; m, O. dulcis; n, O. funesta; o, O. noemi; p, O. subcalva; q, O. tripolitana. Scale bars = 0.5 mm (a–i).

FIGURE 7a–l. Left mandible of third instar Oxythyrea larvae, dorsal, medial and ventral view (a–f) and maxillo-labial complex of third instar Oxythyrea larvae, ventral view (g–l). a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. abigail; h, O. albopicta; i, O. cinctella; j, O. dulcis; k, O. funesta; l, O. noemi. Scale bars = 0.5 mm.

FIGURE 8a–l. Left mandible of third instar Oxythyrea larvae, dorsal, medial and ventral view (a–c), right mandible of third instar Oxythyrea larvae: ventral, medial and dorsal view (d–f), maxillo-labial complex of third instar Oxythyrea larvae, ventral view (g–i) and metathoracic leg (j–l). a, O. pantherina; b, O. subcalva; c, O. tripolitana; d, O. abigail; e, O. albopicta; f, O. cinctella; g, O. pantherina; h, O. subcalva; i, O. tripolitana; j, O. abigail; k, O. albopicta; l, O. cinctella. Scale bars = 0.5 mm.

FIGURE 10a–r. Last abdominal segment of third instar Oxythyrea larvae, ventral view (a–i) and last abdominal segment of third instar Oxythyrea larvae, detail of raster (j–r). a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. pantherina; h, O. subcalva; i, O. tripolitana; j, O. abigail; k, O. albopicta; l, O. cinctella; m, O. dulcis; n, O. funesta; o, O. noemi; p, O. pantherina; q, O. subcalva; r, O. tripolitana. Scale bars = 1 mm (a–i).

FIGURE 11a–m. Last abdominal segment of third instar Oxythyrea larvae, lateral view (a–i) and last abdominal segment of third instar Oxythyrea larvae, posterior view (j–m). a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. pantherina; h, O. subcalva; i, O. tripolitana; j, O. albopicta; k, O. cinctella; l, O. dulcis; m, O. funesta. Scale bars = 0.5 mm.

FIGURE 12a–o. Thoracic spiracles of third instar Oxythyrea larvae, entire view (a–i) and detail of sieve plate (j–o). a, O. abigail; b, O. albopicta; c, O. cinctella; d, O. dulcis; e, O. funesta; f, O. noemi; g, O. pantherina; h, O. subcalva; i, O. tripolitana; j, O. abigail; k, O. albopicta; l, O. cinctella; m, O. dulcis; n, O. funesta; o, O. subcalva. Scale bars = 0.1 mm (a–i).