Eurypauropus arcuatus Scheller 2011

Length 1.37–1.42 mm. Antennae (Fig. 8) glabrous. Segment 3 with two setae and globulusg’, segment 4 with three setae. Globulusg’short, as long as wide. Relative lengths of setae on 4th segment:p=100, p’=84, p”=88. These setae cylindrical, pointed, striate. Tergal setap0.5 of the length of tergal brancht. The latter cylindrical, 4.5 times as long as greatest diameter and as long as sternal branchs. The latter branch cylindrical, 4.0 times longer than greatest diameter, anterodistal and posterodistal corners equally truncate; its setaqas setae similar to those of segment 4, and inserted 0.4 from proximal end ofs, with length 0.7 of the length ofs. Relative lengths of flagella (base segments included) and base segments:F1=100, bs1=(10-)11, F2=66, bs2=10, F3=85(-87), bs3=12.F1 0.9 of the length oft, F2 andF3 1.3 and 1.7 times as long assrespectively. Distal calyces of flagella conical, glabrous. Globulusgslender, 4 times longer than wide, stalk thin, curved, ≈10 thin bracts; diameter ofg0.6 of greatest diameter oft. Trunk. Setae of collum segment (Fig. 9) short, probably simple, subsimilar, short, tapering, pointed, densely pubescent. Sternite process triangular, pointed anteriorly. Appendages short, wide, caps thin. Process and appendages glabrous. Tergites with two types of protuberances (Figs 10, 11), large, curved, setose, glabrous, pointed spines, proximally scale-like and evenly spaced on background of more numerous, small crater-like protuberances with pleated sides. Bothriotricha (Figs 12–14). Relative lengths:T1=100, T2=97(-112), T3=67(-71), T4=117, T5=102(-104).T1 (Fig. 12) andT2 with very thin axes, distal half with short erect pubescence;T3 (Fig. 13) glabrous, with thick axes and distal longish end-swelling, T4 andT5 (Fig. 14) glabrous too but thin, somewhat tapering, blunt distally. Legs (Figs 15–16). All legs 5-segmented. Setae on coxa and trochanter (Fig. 15) of leg 9 thin, simple, cylindrical, striate. Tarsus of leg 9 distinctly tapering (Fig. 16), (2.8-)3.2 times as long as greatest diameter, two tergal setae and one sternal, all pointed glabrous; proximal tergal seta longest, almost 0.4 of the length of tarsus, (1.8-)2.2 times as long as distal tergal seta and 1.6 times as long as sternal seta. Length of main claw 0.4 of the length of tarsus. Pygidium (Fig. 17). Tergum. Posterior margin evenly rounded. Relative lengths of setae:a1=a2=10, a3=(22-)23, st=7.a1, a2 andstsimilar, tapering, pointed, a1andstcurved inwards with a knee close to proximal end, a2 evenly curved, a1 andststrongly anda2 inconsiderably converging;a3 evenly curved inward and somewhat diverging. Distancea1-a1 (2.1-)2.4 times as long asa1, distancea1-a2 about as long as distancea2-a3; distancest-st3.2 times as long asstand 1.1 times as long as distancea1-a1. Sternum. Posterior margin with low posteriomedian bulge below anal plate. Relative lengths of setae (pygidiala1=10):b1=(23-)27, b2=13 and 16 in the holotype, and 18 in the paratype, b3=12.b1with fusiform, and shortly pubescent base, tapering into a subcylindrical, striate distal half terminated with a small, striate end-swelling;b2similar tob1 but with cylindrical distal part, proportionately much shorter and without end-swelling;b3 subcylindrical, striate. Length ofb1 (as long as -)1.2 times as long as interdistance, b2 0.7-0.9 of distanceb1-b2, b3 on the same level asb2, length 1.4 times as long as interdistance. Anal plate narrowest at base and consisting of two broad lobes posteriorly separated by V-shaped incision ≈0.3 of the length of plate; posterolateral corners without appendages but each with very small tooth; each lobe with a bladder-shaped posteriorly directed appendage with distinct erect pubescence, length of appendages 0.9 of the length of plate.