Stictococcus sjostedti

Adult female broadly oval to rotund, 1.65–3.30 mm long, 1.45–3.00 mm wide, membranous at first, mature specimens heavily sclerotized. Dorsal surface with marginal barbed setae 95–115 µm long, all pointed, longest posterior marginal setae on apparent anal lobe area about 260 µm long, other posterior setae about 175 µm long. Submarginal setae shorter, barbed, spatulate distally, each about 60 µm long. Submedial and medial setae similar to submarginal setae, flattened distally, mostly about 120 µm long. Long submedial flagellate setae present, some on head about 440 µm long, others about 290 µm long. Medial flagellate setae surrounding anus, each about 290 µm long. Some thick dorsal setae present, each about 40–50 µm long. Minute slender flagellate setae also present, usually curved and fairly numerous, 20–25 µm long. A double to triple row of small quinquelocular pores, each about 5 µm in diameter, extending from apex of abdomen to area almost opposite vulva. Ventral surface with small quinquelocular pores about 5 µm in diameter, almost encircling vulva then curving posteriorly to midline in a double to triple row extending to apex of abdomen. Thick-rimmed, oval bilocular pores, each about 7.5 µm long, 5 µm wide, or sometimes replaced by round trilocular pores, 7.5 µm in diameter. Marginal flat setae, each expanding distally to a lobulate apex, mostly about 40 µm wide, with 2–4 distal lobules. Other ventral setae short, almost spine-like, 15–20 µm long. Long flagellate setae, each about 115 µm long, present around margins. Legs well developed, hind trochanter + femur 175–215 µm long, hind tibia + tarsus 180–195 µm long. Ratio of lengths of hind tibia + tarsus to trochanter + femur 0.92–1.03.

Literature