Belongs within: Eleutherengonides.
The Podapolipidae are a group of mites including both internal and external parasites of other arthropods (Walter et al. 2009).
Characters (from Walter et al. 2009): Cheliceral stylophore consolidated with subcapitulum to form a capsulate gnathosoma; palpi reduced. Females typically with 1–3 pairs of legs; legs IV, if present, 5-segmented and more slender than legs II–III. Males with 3 or 4 pairs of legs; legs IV, if present, 5-segmented and inserted ventrally or reduced and inserted dorsally; male genital capsule caudal or dorsal in position.
<==Podapolipidae [Podapolipodidae]
|--ChrysomelobiaH91
| |--C. labidomeraeWL09
| `--C. mahunkaiWL09
`--+--Tarsopolipus [Tarsopolipinae, Tarsopolipodidae]H91
| `--T. corrugatus Berlese 1911H91
`--+--DorsipesH91
| |--D. dorsipesWL09
| `--D. inflatusWL09
`--+--StenopolipusH91
`--+--RegenpolipusH91
`--+--Eutarsopolipus Berlese 1913H91, HH96a
| | i. s.: E. agonobiusWL09
| | E. alarumHH96a
| | E. assimilisHH96a
| | E. bembidii Eidelberg & Husband 1993HH96a
| | E. capowayensis Husband & Husband 1996HH96a
| | E. crassisetusHH96a
| | E. diachelae Eidelberg 1994HH96a
| | E. diunculosus Eidelberg 1994HH96a
| | E. elongatusHH96a
| | E. porteri Husband 1993HH96a
| |--*E. lagenaeformis Berlese 1913HH96a, HM99, HH96a
| |--E. acanthomus groupHM99
| | |--E. acanthomusHM99
| | `--E. pseudopus Regenfuss 1974HM99, HH96a
| |--E. biunguisHM99
| |--E. desani groupHM99
| | |--E. crassicepsHM99
| | `--E. desaniHM99
| |--E. megacheli Husband & Macfarlane 1999HM99
| |--E. myzusHM99
| |--E. ochoai groupHM99
| | |--E. leytei Husband & Corpuz-Raros 1989HM99
| | `--E. ochoaiHM99
| |--E. pterostichiHM99
| |--E. secundus Husband & Macfarlane 1999HM99
| `--E. stammeriHM99
`--+--Archipolipus Husband 1971H91, H98
| |--A. adrianaeNK94
| `--A. canthoni Husband 1971H98
`--OvacarusH91
|--O. clivinaeWL09
`--O. peelleiWL09
Podapolipidae incertae sedis:
Podapolipoides Regenfuss 1968H98 [incl. LocustipolipusWL09]
|--P. alatus Husband 1990H98
|--P. barmounti Husband 1990H98
|--P. brevichelus Husband 1990H98
|--P. houstoni Husband 1990H98
`--P. valangus Husband 1990H98
Coccipolipus Husband 1972H98
|--C. epilachnaeWL09
`--C. macfarlanei Husband 1972H98
Locustacarus Ewing 1924H98
|--*L. trachealis Ewing 1924E24 [=Bombacarus trachealisSPN96]
|--L. buchneri Stammer 1951 [=L. (Bombacarus) buchneri]HH96b
`--L. masoniWL09
Bakerpolipus Husband & Sinha 1970H98
|--B. nauphoetaeSPN96
`--B. serratus Husband & Sinha 1970H98
PanesthipolipusWL09
PeripolipusWL09
TetrapolipusWL09
|--T. batoceraeE24
`--T. rhynchophori Ewing 1924E24
Podapolipus Rovelli & Grassi 1888 [Podapolipinae]H98
|--P. aharoniiHH96b
|--P. monistriae Husband 1986H98
|--P. naudoi Husband 1986H98
|--P. pacificus Husband 1986H98
|--P. platyzosteriae Husband 1986H98
|--P. welbourniHH96b
`--P. womersleyi Husband 1986H98
CydnipolipusWL09
ParobiaWL09
Scarabapolipus uchikawaiNK94
DilopolipusWL09
KurosapolipusWL09
BuprestapolipusWL09
StigmacarusWL09
RhynchopolipusWL09
SilphopolipusWL09
OrthapolipusSLH18
WetapolipusSLH18
*Type species of generic name indicated
References
[E24] Ewing, H. E. 1924. New tarsonemid mites (order Acarina, family Tarsonemidae). Proceedings of the Entomological Society of Washington 26 (3): 66–69.
[H98] Halliday, R. B. 1998. Mites of Australia: A checklist and bibliography. CSIRO Publishing: Collingwood.
[H91] Husband, R. W. 1991. A preliminary investigation of the phylogeny of Tarsopolipus, a comparison with other early derivative podapolipid genera. In: Dusbábek, F., & V. Bukva (eds) Modern Acarology: Proceedings of the VIII International Congress of Acarology, held in České Budĕjovice, Czechoslovakia, 6–11 August 1990 vol. 2 pp. 193–205. SPB Academic Publishing: The Hague.
[HH96a] Husband, R. W., & D. O. Husband. 1996a. A new species of Eutarsopolipus (Acari: Podapolipidae) from Amara californica Dejean (Coleoptera: Carabidae) from California. Proceedings of the Entomological Society of Washington 98 (3): 465–470.
[HH96b] Husband, R. W., & P. S. Husband. 1996b. Studies of Locustacarus spp. (Podapolipidae) tracheal parasites of grasshoppers and bumblebees. In: Mitchell, R., D. J. Horn, G. R. Needham & W. C. Welbourn (eds) Acarology IX vol. 1. Proceedings pp. 335–338. Ohio Biological Survey: Columbus (Ohio).
[HM99] Husband, R. W., & D. Macfarlane. 1999. Two new species of Eutarsopolipus (Acari: Podapolipidae) from Catadromus lacordairei (Coleoptera: Carabidae) from Australia. International Journal of Acarology 25 (4): 297–308.
[NK94] Norton, R. A., & J. B. Kethley. 1994. Ecdysial cleavage lines of acariform mites (Arachnida, Acari). Zoologica Scripta 23 (3): 175–191.
[SLH18] Seeman, O. D., E. E. Lindquist & R. W. Husband. 2018. A new tribe of tarsonemid mites (Trombidiformes: Heterostigmata) parasitic on tetrigid grasshoppers (Orthoptera). Zootaxa 4418 (1): 1–54.
[SPN96] Sammataro, D., P. Parker & G. R. Needham. 1996. Using PCR-based RAPDs (random amplified polymorphic DNA) to determine differences between populations of the tracheal mite Acarapis woodi (Rennie) (Tarsonemidae). In: Mitchell, R., D. J. Horn, G. R. Needham & W. C. Welbourn (eds) Acarology IX vol. 1. Proceedings pp. 143–148. Ohio Biological Survey: Columbus (Ohio).
[WL09] Walter, D. E., E. E. Lindquist, I. M. Smith, D. R. Cook & G. W. Krantz. 2009. Order Trombidiformes. In: Krantz, G. W., & D. E. Walter (eds) A Manual of Acarology 3rd ed. pp. 233–420. Texas Tech University Press.