Sacculogalumna Engelbrecht, 1973

Ermilov, Sergey G., 2024, New Galumnidae (Acari, Oribatida) from the Merida and Zulia States, Venezuela, Zootaxa 5514 (5), pp. 481-493 : 482-486

Genus Sacculogalumna Engelbrecht, 1973

Type species: Sacculogalumna saccularis Engelbrecht, 1973 .

Key to known species of Sacculogalumna

1. Prodorsum and notogaster striate........................................................................ 2

- Prodorsum and notogaster not striate..................................................................... 3

2. Anogenital region, subcapitular mentum and anterior part of pteromorph foveolate; rostrum pointed, with two lateral teeth; interlamellar seta shorter than lamellar seta; notogastral saccule Sa located anteromedially to la; dorsosejugal and postanal porose areas absent; adanal lyrifissure oblique, located close to posterior half of the anal plate; body length 720–810...................................................................... S. zuliaensis sp. nov. Distribution: Venezuela.

- Anogenital region, subcapitular mentum and anterior part of pteromorph not foveolate; rostrum rounded; interlamellar seta longer than lamellar seta; notogastral saccule Sa located between la and lm; dorsosejugal and postanal porose areas present; adanal lyrifissure parallel and close to anterior half of the anal plate; body length 1012–1178................................................ Sacculogalumna hexasacculata Ermilov, 2017 (in Ermilov & Friedrich 2017). Distribution: Peru.

3. Rostrum pointed; lamellar seta inserted medial to lamellar line (i.e. between lamellar lines); bothridial seta setiform; dorsosejugal suture interrupted medially; pteromorph reticulate; adanal setae ad 1 and ad 2 long, thickened; anterior edge of genital plate with one genital seta; adanal lyrifissure in preanal or inverse apoanal position, distanced from anal plate; postanal porose area absent; body length 531–614............. Sacculogalumna samarensis Ermilov & Corpuz-Raros, 2017 . Distribution: Philippines.

- Rostrum rounded; lamellar seta inserted lateral to lamellar line (i.e. between lamellar and sublamellar lines); bothridial seta with developed head; dorsosejugal suture complete; pteromorph not reticulate; anterior edge of genital plate with two or three genital setae; adanal setae ad 1 and ad 2 short, simple; adanal lyrifissure in paraanal position, close to anal plate; postanal porose area present......................................................................................... 4

4. All notogastral setae represented by alveoli; interlamellar seta longer than lamellar and rostral setae; head of bothridial seta well developed, widely lanceolate, barbed; saccule Sa located near to pteromorphal hinge, anterior to la; median pore present; adanal seta ad 3 inserted lateral to adanal lyrifissure; postanal porose area elongate oval; body length 438–493..................................................... Sacculogalumna saccularis Engelbrecht, 1973 . Distribution: South Africa.

- All notogastral setae represented by short setae; interlamellar seta shorter than lamellar and rostral setae; head of bothridial seta slightly developed, narrowly lanceolate, smooth; saccule Sa distanced from pteromorphal hinge, located between la and lm; median pore absent; adanal seta ad 3 inserted posterior to adanal lyrifissure; postanal porose area rounded; body length 410–440............ Sacculogalumna suiyangensis Liang, Yang & Huang, 2012 . Distribution: Southern China, Caucasus.