Gallery

Fig. 9. Chaetodactylus krombeini female, ventral view; FL photo by Ron Ochoa & Gary Bauchan, USDA-ARS.

Fig. 10. Chaetodactylus krombeini male, ventral view; FL photo by Ron Ochoa & Gary Bauchan, USDA-ARS.

Fig. 11. Chaetodactylus krombeini pair in copula; LT-SEM photo by Ron Ochoa & Gary Bauchan, USDA-ARS.

Fig. 12. Chaetodactylus krombeini female lateral propodosoma showing enlarged supracoxal sclerite. This trait is diagnostic for the family Chaetodactylidae; LT-SEM photo by Ron Ochoa & Gary Bauchan, USDA-ARS.

Fig. 13. Gnathosomal morphology is a key character separating genera of the family Chaetodactylidae (Centriacarus, Roubikia, Achaetodactylus, Chaetodactylus, and Sennertia) based on phoretic deutonymphs. In particular, Chaetodactylus can be distinguished by having palps and gnathosomal solenidia present and palp setae absent; drawing of Achaetodactylus leleupi courtesy of Belgian GTI Focal Point 2009, http://www.taxonomy.be.

Fig. 14. External genital appartus of males of Roubikia, Sennertia, and Chaetodactylus, showing key diagnostic features of Chaetodactylus: fused progenital sclerites and dorsal supporting sclerite with secondary processes.

Fig. 15. The presence of an anterodorsal protuberance on tarsi I-IV of males is a unique feature of Chaetodactylus. For comparison, tarsus IV of Sennertia sp. is also shown.

Fig. 16. Chaetodactylus krombeini phoretic deutonymphs dispersing on the blue orchard bee Osmia lignaria.

Fig. 17. Phoretic deutonymphs of Tortonia smitsvanburgsti and Chaetodactylus anthidii on bee Rhodanthidium sticticum; photo by Lindsey Seastone & Laura Hartmann, ITP.

Fig. 18. Chaetodactylus krombeini mites in a brood cell of the blue orchard bee Osmia lignaria; photo by USDA-ARS.

Fig. 1. Chelacheles temoak female, dorsal view.

Fig. 2. Chelacheles temoak female, ventral view.

Fig. 3. Chelacheles temoak female anterior body, dorsal view.

Fig. 4. Females of Chelacheles temoak phoretic on bee Diadasia sphaeralcearum (bee photographed after mites were removed).

Fig. 1. Cheletophyes torridae holotype female, dorsal view.

Fig. 2. Cheletophyes torridae holotype female, ventral view.

Fig. 3. Cheletophyes torridae holotype female prodorsal region.

Fig. 4. Cheletophyes torridae holotype female gnathosoma, ventral view.

Fig. 5. Cheletophyes venator in axillar acarinarium of Xylocopa nigrita.

Fig. 6. Cheletophyes apicola phoretic females in axillar acarinarium of Xylocopa latipes; SEM photo by Barry OConnor, University of Michigan.

Fig. 1. Cosmolaelaps vacuus female, dorsal view.

Fig. 2. Cosmolaelaps vacuus female, ventral view.

Fig. 3. Cosmolaelaps vacuus female posterior hysterosoma showing dorsal setae.

Fig. 4. Cosmolaelaps vacuus female sternal shield.

Fig. 5. Cosmolaelaps vacuus female ventral hysterosoma.

Fig. 6. Cosmolaelaps vacuus female peritreme.

Fig. 7. Cosmolaelaps vacuus female gnathosoma.

Fig. 8. Cosmolaelaps vacuus female chelicera.

Fig. 9. Cosmolaelaps vacuus female spermatheca.

Fig. 1. Crossacarapis eickworti female, dorsal view.

Fig. 2. Crossacarapis eickworti female, ventral view.

Fig. 3. Crossacarapis eickworti female anterior idiosoma, dorsal view.