Home | Endeostigmata & Sphaerolichida Home | Glossary
Amphialychus
Amphialycus penophthalmus Zachvatkin, 1949 Ukraine; A. leucogaster (Grandjean, 1937) Europe (see Uusitalo ms.).
DIAGNOSIS. Prodorsum with 2 pairs of filiform trichobothria (si, ve) and 4 pairs of setae (vi, se, in, exp); naso undeveloped, but median eye present, 2 pairs of lateral eyes. Rutella with tooth and lobe; subcapitulum with 5 pairs of setae; chelicerae chelate-dentate, each with 1 seta. Opisthosoma hypertrichous; 3 pairs of genital papillae.
REMARKS. This genus is poorly known, but is most similar to Orthacarus, the species of which have lost seta vi, the median eye, and a lateral eye and to Alycus which have lost the median eye, but usually retain a vestigial naso.
References
Grandjean F. 1936. Le genre Pachygnathus Dugês (Alycus Koch) (Acariens). Ire partie. Bull. Mus. nat. hist. 8 (ser. 2):398-405.
Grandjean F. 1937d. Le genre Pachygnathus Dugês (Alycus Koch) (Acariens). Cinquième et dernière partie. Bull. Mus. nat. hist. 9 (ser. 2):262-269, fig 9.
Zakhvatkin AA. 1949. New representatives of apparently segmented mites (Acarina: Pachygnathidae). Ent. Obozer. Moscow 30: 291-295.