Enderleinellus krochinae Blagoveshtchensky, 1965

Enderleinellus krochinae Blagoveshtchensky, 1965 View in CoL

Female. Length varies from 0.89–0.93 mm (Table 2, Figure 1a View Figure 1 ). Head length and width equal, rounded in front, slightly convex ( Figure 1b View Figure 1 ). The antenna has five segments, the first segment larger than the others. Segments III and IV equal. The temporal region is rounded, and the post-antennal region is longer than the preantennal region. Clypeal setae (CS), oral setae (OS), preantennal setae (PAS), outer sutural head setae (OSHS), inner sutural head setae (ISHS), anterior marginal head setae (AMHS), middle marginal head setae (MMHS), and posterior marginal head setae (PMHS) the same length. Anterior central head setae (ACHS) and accessory dorsal head setae (ADHS) are lacking. Posterior central head setae (PCHS) are slightly longer than these setae. Principal dorsal head setae (PDHS) reach the first coxae ( Figure 1c View Figure 1 ).

Thorax is slightly wider than length. The third pair of legs larger than the first two, claws very strong. Thoracic plate as in Figure 1d View Figure 1 . Abdomen without tergal and sternal plates. Two sclerotized plates on the center of segment III ( Figure 1a View Figure 1 ), which is characteristic of this genus. The abdominal segments II–VI have paratergal plates ( Figure 1e View Figure 1 ). The second one is wider than the others, with two spines, the outer one slightly longer than the inner one. Paratergal plate VI weakly sclerotized, smaller than the others, without elongated posterior corners. One raw tergal and sternal setae on the abdominal segments. Sternites II–III: 4; IV–VI: 8; VII: 4 central setae, in addition to one lateral seta on each side of segment VI–VIII. Two very long marginal abdominal setae (MAS) on the lateral side of segments VII and VIII. Tergites II–III: 4; IV: 9; V–VI: 10; VII: 8; VIII: 4 median setae, 1 lateral seta on segments III, and 2 lateral setae on segments IV–VI. Genital plate square, slightly rounded posteriorly, moderately chitinized ( Figure 1f View Figure 1 ). Gonopods with three setae, the posterior one longer than the others. Body length varied from 0.90–0.93.

Male. Body length 0.96 mm (Table 2) ( Figure 2a View Figure 2 ). Similar to the female; however, the abdomen tapering posteriorly. ACHS present ( Figure 2b View Figure 2 ). The sternal abdominal chaetotaxy also similar to the female’s. Segment II: 4; III: 7; IV–VI: 8; VII: 4 median setae, in addition to one lateral seta on each side of segment VI–VIII. Two very long setae on the lateral side of abdominal segments VIII and IX. Tergites III–VIII: 4 central setae, 1 lateral seta on segments IV–VII. Genitalia, as in Figure 2c View Figure 2 . Internal sac with numerous conspicuous teeth of various shapes and sizes ( Figure 2c View Figure 2 ).