Metatarsonemus megasolenidii Lofego & Ochoa

Lofego, Antonio Carlos, Cavalcante, Ana Cristina Cerqueira, Demite, Peterson Rodrigo, Rezende, José Marcos, Ochoa, Ronald & Moraes, Gilberto José De, 2019, Reinstatement of Metatarsonemus Attiah (Acari: Tarsonemidae), with description of a new species, redefinition of the genus and a key to the world species, Zootaxa 4711 (2), pp. 307-329 : 313-314

Metatarsonemus megasolenidii Lofego & Ochoa

( Fig. 4 )

Metatarsonemus megasolenidii, Lofego, Ochoa, Moraes, 2005 : 07.

Diagnosis: Adult of both sexes: Gnathosoma with a thick, muscular pharyngeal pump, below base of which is a distinctive, transverse groove on external ventral surface of gnathosomal capsule. Sensory cluster on tibia I incomplete, missing ϕ1. Setae pl´´absent on tarsus II. Female: Vertical setae v1 and scapular setae sc2 of similar length,

v1 slightly shorter; setae c1 and c2 of same length. Ventral surface of podosoma with a conjunct of several fissures: a pair of angulate fissures near base of coxisternal setae 1a; a pair of curved fissures anterolaterad bases of coxisternal setae 2a, in part parallel with apodeme 2; a pair of Y-shaped fissures near bases of coxisternal setae 3b, in part superimposed over apodeme 4; and a small subcircular unpaired fissure at posterior end of poststernal apodeme. Male: vertical setae v1 and scapular sc1 and sc2 of a similar length; setae c2 and d of a similar length, c1 slightly shorter; solenidion ω much larger and more swollen on tarsus II than on tarsus I, approximately 1.5 times longer than greatest width of tarsus II; tibial tactile setae not longer than femorogenu on leg IV.

Figures

FIGURE 4. Phase contrast photos of Metatarsonemus megasolenidii Lofego & Ochoa, adult female.A—ventral surface of gnathosomal capsule and coxisternal plates I and II. B—Ventral surface of coxisternal plate III and IV. Abbreviations: ap, angular projection of coxisternal plate I: cf, coxisternal fissure; lr, linear ridge beside tegula