Abstract |
- The organotaxy of the family Tydeidae is reviewed in
light of the fundamental paradigms of Grandjean. The
system of designation previously used to describe the
tydeid idiosoma is replaced by a notation system based
on chaetotaxy and poroidotaxy. A preliminary survey of
dorsal sigillotaxy also is included. The phanerotaxy of
each leg segment is analyzed in depth, particularly from
the standpoint of variation. The degree of fusion and
muscle relationship of the interfemoral joint on leg IV
is given special attention. The basic structure of
gnathosoma is summarized and an interpretation of the
palp phanerotaxy is presented.
Based on the results of these studies, 41 genera are
proposed. Proctotydaeus Berlese 1911 sensu Fain & Evans
1966 is returned to the Tydeidae. Two genera are defined
as new combinations (Proctotydaeus and Tydeus Koch 1835)
while 21 others are listed as new. The genera are
distributed in seven new subfamilies as follows : Australotydeinae (Austrolotydeus Stain 1969) ;
Meyerellinae (Meyerella Baker 1966) ; Pretydeinae
(Fretydeus n. gen. and Prelorryia n. gen.) ; Pronematinae
(Apopronematus n. gen., Homeorronematus n. gen., Meta
Pronematus n. gen., Naudea. Meyer & Rodrigues 1965,
Pararronematus Baker 1965, Pausia Kuznetzov & Livshits
1972, Proctotydaeus n. comb., Fronecunulatus Baker 1965,
Pronematulus Baker 1965, Pronematus Canestrini 1886 sensu
Baker 1965) ; Triophtydeinae (Arotriorhtydeus n. gen.,
Metatriorhtydeus n. ger., Pretriorhtydeus n. gen. and
Teletrionhtydeus n. gen.) ; Tydaeolinae (Aesthetydeus
n . gen., Coccotydaeolus Baker 1965, Lasiotydeus Berlese
1908 sensu Baker 1965, Metatydaeolus n. gen., Microtydeus
Thor 1931 sensu Baker 1965, Paratriorhtydeus Baker 1966,
Paratydaeolus n. gen., Primotydeus n. gen., Pseudotydeus
Baker & Delfinado 1974, Tydaeolus Berlese 1910 sensu
Baker 1965, Tyndareus Livshits & Kuznetzov 1972) and
Tydeinae (Afrotydeus Baker 1970, Apolorryia n. gen.,
Eotydeus Kuznetzov 1973, Homeotydeus n. gen., idiolorryia
n . gen., Krantzlorryia n. gen., Metelorryia n. gen.,
Neolorryia n. gen., Orthotydeus n. gen., Perafrotydeus
n . gen., Tydeus n. comb. and Tydides Kuznetzov 1975).
Eight species are described : Meyerella marshalli,
Metatriorhtydeus lebruni, Homeorronematus vidae,
Aporronematus bakeri, Paratydaeolus lukoschusi, Meta
tydaeolus joannis, Paratriophtydeus coineaui, and Primo
tydeus strandtmanni. The study concludes with a brief
discussion of the systematic position of the family.
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