Comprehensive DescriptionRead full entry
Description of the Bee Mite Species Sennertia shimanukiiPhoretic deutonymph. Gnathosomal solenidia shorter than 1/3 of femur I width. Supracoxal setae scx situated on separate small sclerite. Hysterosomal shield lateral gland openings and bases of f2 nearly on edge of hysterosomal shield, or the former outside the shield. Lateral edges of hysterosomal shield in anterior part not narrowing. Dorsal hysterosomal pouch absent. Distance between anterior margin of hysterosomal shield and setae si exceeds diameter of si bases. Striate pattern of idiosomal cuticle outside hysterosomal shield without sclerotization, formed by long striae. Distinct rudiments of vi present. Setae si distinctly posterior se, exceed 1/2 of se, almost as thick as se. Diameter of si exceeds 1/2 of diameter of se. Setae c1 distinctly longer than d1-h1; long, nearly as long as se; situated on anterior edge of hysterosomal shield. Setae d1 and e1 nearly uniform in length with h1; situated on hysterosomal shield. Sclerite between ia and d2 present. Setae e2 subequal with d2; not touching hysterosomal shield. Lateral gland openings situated on hysterosomal shield. Setae 4b, g, and 4a with rhomb-like widening (sometime weakly-developed). Setae 4b, pR I-II, sR III, wF IV, gT I-II, hT I-II, kT III, ra I-II filiform. wa I-II spiniform. Posterior apodemes II and anterior apodemes III free. Anterior apodemes IV not interrupted; almost straight. Posterior apodeme IV absent. Conoids ps2 posterior to anterior transverse level of central suckers (ad1+2); anterior to ps1, situated outside outer level of ad1+2. Transparent margin of anterior suckers (ad3) without rough sclerotization. Suckers ad3 not enlarged, smaller than central suckers. Posterior and lateral borders of attachment organ not forming distinct frame. Sclerotized rudiment of anterior cuticular suckers present. Longitudinal hysterosomal sclerite present, long. Ventral hysterosoma smooth. Genual setae mG I-II simple, mG II distinctly shorter than leg II, but longer than femur II. Tarsal setae la I-II longer than famulus ε. Tarsal setae ra I-II not bifid, filiform. Tarsal setae wa I-II and s III spiniform (at least s III with rounded apices). Tarsal setae d I-II distinctly widened, lanceolate. Tarsal setae d and f I-II almost symmetrical, d and f I not touching. Solenidion ω3 closer to f I than to ω1. Posterior condylophore present. Anterior condylophore I-II with distal bending. Seta d III situated close to tarsal base, distance usually subequal or shorter than diameter of d III alveolus. Leg IV protruding posterior edge of hysterosoma. Tarsus IV not enlarged, shorter or less than 2 times longer than width of trochanter IV. Setae w IV thinner than d IV and distinctly shorter than leg IV, situated on middle of tarsus IV. Setae s IV present. Setae wF IV slightly protruding apex of tarsus IV.
Other instars unknown.
Notes. Similar to Sennertia augustii and S. frontalis (see p. 84)