Pseudosinella Schäffer, 1897

Soto-Adames, Felipe N., 2010, Two new species and descriptive notes for five Pseudosinella species (Hexapoda: Collembola: Entomobryidae) from West Virginian (USA) Caves, Zootaxa 2331, pp. 1-34 : 6

Pseudosinella Schäffer, 1897

Eyes fewer than 8, scales finely denticulate and apically rounded covering head, body and ventral face of furcula, distal vesicles of ventral tube smooth, mucro bidentate.

In addition to the characters mentioned in the previous section, the species described below share the absence of apical papilla on Ant. 4, absence of scales on antennae, ventral tube, legs and dorsal face of manubrium, outer maxillary lobe with apical and subapical setae smooth and subequal, three medial and one anterior seta-like processes on the sublobular plate ( Fig. 40 ), labial papilla E with four seta-like processes in addition to the lateral process ( Fig. 92 ), and the presence of a smooth mucronal spine reaching the basal mucronal tooth ( Fig. 18 ). The sublobular plate of the outer maxillary lobe of all species has four processes, but the shortest process arises from the dorsal margin of the plate and in most cases it is folded under or covered by the edge of the labrum ( Fig. 40 ).

Figures

FIGURES 35 – 44. Pseudosinella argentea: 35, Subapical sensilla of forth antennal segment; 36, Sense organ of third antennal segment; 37, Dorsal head chaetotaxy; 38, Labial and postlabial chaetotaxy; 39, Anterior margin of labrum; 40, Sublobular plate of outer maxillary lobe; 41, Mucro; 42, Chaetotaxy of second abdominal segment; 43, Distribution of setae on distal manubrial plate, left side; 44, Atypical chaetotaxy of second abdominal segment in another individual.

FIGURES 87 – 96. Pseudosinella orba: 87, Subapical sensilla of fourth antennal segment; 88, Sense organ of third antennomere and associated sensilla; 89, Peristomal and pleural fold setae; 90, Position of proximal setae of labial palp relative to papilla A and C; 91, Mucro and distal uncrenulate section of dens; 92, Labial palp papilla E; 93, Dorsal head chaetotaxy, left side labeled using the RST system, right side labeled using the AMS system; 94, Labial and postlabial chaetotaxy, dots and circles are smooth and ciliate setae, respectively, setae represented by circles with dots can be ciliate or smooth; 95, Mesothoracic chaetotaxy; 96, Labium and postlabium, individuals from Smythe Co. Virginia.

FIGURES 11 – 20. Pseudosinella josemarii sp. nov.: 11, Bothriotrichal complex of fourth abdominal segment; 12, Complete chaetotaxy of fourth abdominal segment (dots are acuminate microsetae, circles macrosetae, triangles fanshaped microsetae); 13, Metatibiotarsus and macrosetae; 14, Dorsal view of outer teeth of metathoracic claw; 15, Posterior view of inner teeth of metathoracic claw; 16 – 17, Metathoracic claw in two individuals; 18, Mucro; 19, Anterior face of ventral tube, left side; 20, Posterior chaetotaxy of ventral tube, left side.