Sugaentulus masumii Imadaté, 1978

Shrubovych, Julia & Rusek, Josef, 2010, Sugaentulus andrzeji sp. nov. from Siberia, Russia (Protura: Acerentomidae: Acerentominae) and key to Acerentominae genera, Zootaxa 2720, pp. 59-68 : 66

Sugaentulus masumii Imadaté, 1978

( Figs. 34–39 )

The holotype of Sugaentulus masumii Imadaté, 1978 (NSMT–Ap 62), allotype (NSMT–Ap 62) and two paratypes (NSMT–Ap 70), deposited in National Science Museum of Natural History, Tokyo, Japan, were studied recently by Dr. Nakamura Osami, who kindly provided new illustrations of Imadaté’s species for comparison with S. andrzeji . These drawings along with Imadaté’s original description form the basis for a partial redescription of S. masumii and differentiation of the two species.

Maxillary gland characterized by wide calyx with slightly granulated surface and with distinct extra appendix ( Fig. 34 ). Basal sensilla on maxillary palps slender, near setiform ( Figs. 35 A, B). Sensillum on labial palp very broad ( Fig. 35 C). Accessory setae on meso- and metanotum and tergites I–VI sensilliform, blunt, not pointed ( Figs. 36, 37 ), on VII longer and setiform ( Fig. 38 ). Striate band on abdominal segment VIII distinct with parallel and regularly oriented striae ( Fig. 39 ). Striae shorter than the band width. On ventral side, some striae between anterior line of band and cuticular area only in holotype, not observed in allotype and two paratypes.

Figures

FIGURES 34 – 39. Sugaentulus masumii Imadaté, 1978, holotype. 34 — canal of maxillary gland; 35 — maxillary palp with dorsal sensillum (A) and ventral one (B) and labial palp (C); 36 — metathoraxal margin and accessory seta P 1 a; 37 — hind margin of tergite VI with accessory seta; 38 — hind margin of tergite VII with accessory setae; 39 — striate band, dorsal and ventral view. Scale bars: 10 µm.