Typhloseiopsis De

Ferragut, Francisco, Moraes, Gilberto Jose & Navia, Denise, 2011, Phytoseiid mites (Acari: Phytoseiidae) of the Dominican Republic, with a re-definition of the genus Typhloseiopsis De Leon, Zootaxa 2997, pp. 37-53: 47-48

publication ID

http://doi.org/ 10.5281/zenodo.201690

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scientific name

Typhloseiopsis De


Genus Typhloseiopsis De  Leon

Typhloseiopsis De Leon, 1959 a  : 150.

Typhloseiopsis De  Leon sensu McMurtry, 1983: 249. theodoliticus  species group, Chant & Yoshida-Shaul, 1983 a: 1036. Typhloseiopsis Chant & McMurtry, 1994: 258  .

De Leon (1959 a) originally created Typhloseiopsis  to accommodate the type species Typhloseiopsis theodoliticus De  Leon, giving as characteristics of the genus the smooth or almost smooth dorsal shield, with at least [sic] five pairs of anterolateral setae, setae j 4 -J 5 minute, presence of anal shield in female and separated ventral and anal shields in male, and macrosetae on genua of all legs as well as on tibia and tarsus IV. Chant (1959) recognized this genus, also mentioning the existence of only five pairs of anterolateral setae on podoscutum. This interpretation was related to the medial insertion of z 4 in relation to the alignment of z 3 and s 4 ( Chant & Yoshida-Shaul, 1983 a). Later, McMurtry (1983) redefined the genus including species with 16 pairs of dorsal setae, only setae J 2, J 5, Z 4, Z 5 and S 5 present on posterior part of dorsal shield, seta z 4 posterior to or slightly mediad to z 3, dorsal setae minute except j 1, j 3, s 4, Z 4 and Z 5 and macrosetae present on genua I –IV, tiIV and tIV. Chant & Yoshida-Shaul (1983 a) classified T. theodoliticus  and two related species within a species group ( theodoliticus  species group) in the genus Typhlodromus  . Subsequently, Chant & McMurtry (1994; 2007) raised the group again to the genus level, redefining it more precisely to accommodate other four species that had been described after its original description. In addition to the type species, they considered the following species to belong to this genus: T. pritchardi (Chant & Baker)  , T. funiculatus De  Leon, T. maryae McMurtry  and T. neopritchardi Moraes & Mesa. 

Among the material collected in the Dominican Republic a species resembling the habitus of Typhloseiopsis  was collected on Cecropia peltata  L. ( Cecropiaceae  ) leaves on the mountains of the center of the country. This species has dorsal idiosomal setal pattern ( Chant & Yoshida-Shaul, 1992) 12 A: 7 B, that is, with S 2 present and inserted on the dorsal shield of males and females. According to this pattern, the species would resemble the species of Meyerius  van der Merwe. However, in respect to other characteristics, it resembles much more closely the species of Typhloseiopsis  ; additionally, Meyerius  species have only been found in southern Africa, differently from Typhloseiopsis  species, which have only been reported so far from the Neotropical region. The presence of S 2 could suggest the establishment of a new genus for the species collected in this study. However, given its great similarity to Typhloseiopsis  in relation to other morphological characteristics, it was decided to expand the concept of that genus to accommodate this new species instead of creating a new one. Thus, based on Chant & McMurtry (1994, 2007), the presence of S 2 in the new species subsequently described and a reappraisal of the species placed in it, Typhloseiopsis  is redefined according to the following characteristics.

Diagnosis. Dorsal shield smooth with a few anterolateral striae, usually rounded anteriorly and subtruncate posteriorly. Adult female idiosomal pattern 12 A: 6 B (S 2 absent) or 12 A: 7 B (S 2 present). Most of dorsal shield setae short or very short; setae j 1, j 3 and Z 5, and in some cases s 4 and Z 4 distinctly longer. All dorsal setae smooth except Z 4 and Z 5, smooth or serrated. Dorsal shield with 5 or 6 pairs of solenostomes. Peritreme extending to bases of seta j 1. Sternal shield about as long as wide or slightly longer than wide, with 3 pairs of setae. Female either with ventrianal shield, separate ventral and anal shields or only with anal shield; known males always with separate ventral and anal shields; with a pair of large preanal pores inserted on ventrianal shield or on unsclerotized cuticle. Fixed cheliceral digit with 4 to 8 teeth, movable cheliceral digit with 1 to 3 teeth. Macrosetae always present on genua II –IV, tibia IV and basitarsus IV; genu I with or without macroseta. Calyx of spermatheca tubular, saccular or funnel-shaped. Spermatodactyl of males generally L-shaped with foot elongate and heel reduced. Reported only from Mexico, the Caribbean area, Central America and northern part of South America.












Typhloseiopsis De

Ferragut, Francisco, Moraes, Gilberto Jose & Navia, Denise 2011


Chant 1994: 258
Chant 1983: 1036


De 1959: 150