Spilococcus

Adult female on microscope slide narrowly to broadly oval, membranous, 1.60–3.15 mm long, 0.80–2.50 mm wide. Anal ring situated at apex of abdomen, cellular, 80–105 µm in diameter, with 6 setae each 100–165 µm long. Anal lobe cerarii each with a pair of conical setae about 25.0 µm long, 7.5 µm wide at base, accompanied by about 5 auxiliary setae and a loose cluster of trilocular pores. Anterior cerarii on abdomen each with paired conical setae much more slender and shorter than anal lobe cerarian setae, and with 4 or 5 trilocular pores. Other cerarii usually numbering 6–17 pairs, each containing 2 conical setae and a slight concentration of trilocular pores. Legs well developed, hind coxa 90–130 µm long, hind trochanter + femur 310–420 µm long, hind tibia + tarsus 340–450 µm long. Ratio of lengths of hind tibia + tarsus to hind trochanter + femur 1.06–1.34. Hind tibia with a series of unusually large translucent pores on posterior surface only, each pore cup-shaped with a sclerotized rim. Ostioles well developed, each lip with a few setae and with few to many trilocular pores. Dorsal surface with short, slender setae 15–40 µm long, arranged mainly across middle of segments. Ventral surface with similar setae but most a little longer. Multilocular disc pores, each about 7.5 µm in diameter, present on abdomen only in medial areas. Oral collar tubular ducts present across middle of most abdominal segments to margins. Body setae often flagellate, sometimes conical or spiniform.

Literature