Plutocampa methoria Chevrizov, 1978

Sendra, Alberto, Komerički, Ana, Lips, Josiane, Luan, Yunxia, Selfa, Jesús & Jiménez-Valverde, Alberto, 2021, Asian cave-adapted diplurans, with the description of two new genera and four new species (Arthropoda, Hexapoda, Entognatha), European Journal of Taxonomy 731, pp. 1-46 : 20-21

Plutocampa methoria Chevrizov, 1978

Figs 49–50

Plutocampa methoria Chevrizov, 1978: 202 , fig. 3(1‾10).

Material examined

RUSSIA • ♀, holotype (5.6 mm); Far East , Primorye region, environs of Khasan Lake ; 17 May 1973; S.I. Ljovuschkin leg.; slide; ZMMU Dip0002 .

CHINA • 1 ♀ (5.4 mm), 1 ♀ (3.9 mm); Liaoning Province, Benxi, Haunren, Pylone Cave 4; 17 May 2019; Deharveng and Bedos leg.; sample code CHILN19–007 ; NEIGAE .

Redescription (based on Chevrizov 1978)

Under optical microscope, one can see a smooth cuticle covered by thin and smooth clothing setae. The more complete antennae is apparently regenerated and it has 23 antennomeres in the 5.4 mm adult from Grotte du Pylone; the third antennomere has a thick sensillum in ventral position (d–e macrosetae) ( Fig. 49 ). The small and pointed frontal process has one long and smooth anterior macroseta and two shorter posterior macrosetae; there are three smooth macrosetae along each side of the insertion line of the antennomere and smooth x setae with similar length, ratios of a / i / p / x are 14/19/14/ 19 in the holotype, respectively. The labial palps have a large thick sensilla ( Fig. 50 ). Pronotum with 1+1 ma, 2+2 la, 2+2 lp 1,3, mesonotum with 1+1 ma, 2+2 (2+1) la, 2+2 lp 2,3, 1+1 mp, and metanotum with 1+1 ma, 0–1+1 la, 2+2 lp 2,3, 1+1 mp macrosetae; long and thin notal macrosetae with thin barbs along their distal three-fourths; marginal setae are long and barbed as the macrosetae. Metathoracic legs reach the posterior border of the V–VI abdominal segment; femora has two long, barbed dorsal macrosetae and one ventral macroseta, while the tibia has one short ventral macroseta, a few distal barbs, and calcars with several long barbs; the tarsus has two rows of smooth ventral setae slightly thicker than the clothing setae, and in the distal portion: three long, smooth dorsal setae, one ventral seta and one distal seta; the pretarsus is without lateral processes, with unequal elbowed claws and large lateral crests. Urotergite I–II with 1+1 post 1; urotergite III with 2+2 post 1,2; urotergites IV–VII with 4+4 post 1–4; urotegite VIII with 5+5 post 1–5 and abdominal segment IX 7+7 with post, macrosetae are long with barbs along their distal three-fourths. Urosternite I with 6+6, urosternites II–VII with 4+4 and urosternite VIII with 1+1 macrosetae; urosternal macrosetae shorter than urotergal macrosetae with long barbs; smooth stylar setae. Appendages of the first urosternite (female) with large, short and subcylindrical appendages, each with apical field of glandular a 1 setae. The most complete cercus is regenerated and it has six primary articles and a basal article, which are covered by several whorls of barbed macrosetae with long barbs along the third distal and a few whorls of smooth setae.

Figures

Figs 49‒50. Plutocampa methoria Chevrizov, 1978. 49. Sensillum of the third antennomere. 50. Left labial palp and palpiform process (pp).