Oxythyrea dulcis Reitter, 1899

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 : 418

Oxythyrea dulcis Reitter, 1899

( Figs. 3D ; 4D, M ; 5D, M ; 6D, M ; 7D, J ; 9 A, G ; 10D, M ; 11D, L ; 12D, M )

Material studied. 10 L3 reared ex adults collected at: Greece, Thessaly, Mount Ossa, village Stomio, N°39.867, E°22.733, on Rubus sanctus at beach, 13.–20.vi.2007, H. Podskalská, P. Šípek lgt.; 18 L3 reared ex adults collected at: Greece, Stomio, Beach, at sea level, N°39.8761111, E°22.7313889, 16.–17.v.2015, O. Kouklík, D. Král, P. Šípek, D. Vondráček lgt.

Body length 17–21 mm. Cranium: width 2.89–3.04 mm, height 1.57–2.1 mm. Cranium brown with faint sculpture; elongate in shape, with its dorsal margin more or less convex at its entire length (length of dorsal straight portion of cranial margin less than ¼ of maximum width of cranium). Chaetotaxy as in Table 1. Epipharynx: Zygum with 11–15 stout conical setae and 10–14 similarly shaped setae at its proximal base. Chaetoparia with 56– 80 and 30–54 setae on right and left side respectively. Acanthoparia with 6–8 falcate setae. Stridulatory area of mandibles with 10–17 transverse ridges, ridges in apical third only slightly narrower than remaining ridges. Apical scissorial tooth of left mandible falcate, about twice the size of subapical one. Transverse proximal row of setae and sensilla on ligula composed of 10–11 stout lanceolate setae and campaniform sensilla combined. Setae of thoracic legs stout,short to long, or slender hair-like. Respiratory plate of spiracle with 18–20 holes across diameter. Raster polystichous, with 24–30 pali on each side, septula elliptic more than three times longer than wide. Tegillar setae variable in size from half of length of palus to four times as long as palus (longer setae quite frequent). Tegilla densely setose (average distance between two setae equals from one to two times length of palus), tegilla fused, campus absent. Dorsal parts of last abdominal segment densely setose, covered with numerous medium long and long setae, without ring of prominent long setae or circular field with conspicuously shortened 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 9a–l. Right mandible of third instar Oxythyrea larvae, ventral, medial and dorsal view (a–f) and metathoracic leg of third instar Oxythyrea larvae (g–l). a, O. dulcis; b, O. funesta; c, O. noemi; d, O. pantherina; e, O. subcalva; f, O. tripolitana; g, O. dulcis; h, O. funesta; i, O. noemi; j, O. pantherina; k, O. subcalva; l, O. tripolitana. 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).