Belongs within: Trombiculidae.
Eutrombicula is a genus of chigger mites in which larvae have a roughly rectangular scutum with all scutal setae branched or plumose (Gould 1956).
Characters (from Gould 1956): Larvae with scutum roughly rectangular, often with rounded posterior margin, all scutal setae branched or plumose; palpal claw bifurcate, axial prong external to smaller accessory prong; leg III usually with one or more mastitarsalae.
<==Eutrombicula Ewing 1938H98 [incl. Acariscus Ewing 1943G56, Siseca Audy 1956H98, Trombiculoides Jacot 1938G56]
|--E. alfreddugesi (Oudemans 1920)L07 [=Microtrombidium alfreddugesiH07]
|--E. batatas (Linnaeus 1758) (see below for synonymy)G56
|--E. belkini (Gould 1950) [=Trombicula (Eutrombicula) belkini]G56
|--E. goeldiiK06
|--E. hirsti (Sambon 1927) [=Trombicula hirsti]H98
|--E. macropus (Womersley 1936) [=Trombicula macropus]H98
|--E. microps Lawrence 1951L51
|--E. montensisL51
|--E. rara (Walch 1924) [=Trombicula rara, Siseca rara]H98
|--E. samboni (Womersley 1939) [=Trombicula samboni]H98
|--E. sarcina (Womersley 1944) [=Trombicula sarcina]H98
|--E. southcotti (Womersley & Audy 1957) [=Siseca southcotti]H98
|--E. splendensWL09
|--E. thori (Womersley 1952) [=Trombicula thori, Siseca thori]H98
|--E. tovelli (Womersley 1952) [=Trombicula tovelli; incl. T. ablephara Womersley 1952, Eutrombicula ablephara]H98
|--E. vandiemeni (Domrow 1962) [=Siseca vandiemeni]H98
`--E. wichmanni (Oudemans 1905) [=Thrombidium wichmanni, Trombicula wichmanni]H98
Eutrombicula batatas (Linnaeus 1758) [=Acarus batatas, Leptus batatas, Microthrombidium batatas, Otonyssus batatas, Thrombidium batatas, Trombicula (Eutrombicula) batatas; incl. Tr. brasiliensis Ewing 1925, Tr. flui Van Thiel 1930, Acariscus flui, Eutrombicula flui, Trombicula hominis Ewing 1933, Acariscus hominis, Eutrombicula hominis, Trombicula pastorae Boshell & Kerr 1942]G56
*Type species of generic name indicated
References
[G56] Gould, D. J. 1956. The larval trombiculid mites of California (Acarina: Trombiculidae). University of California Publications in Entomology 11 (1): 1–116.
[H98] Halliday, R. B. 1998. Mites of Australia: A checklist and bibliography. CSIRO Publishing: Collingwood.
[H07] Hoffmann, A. 2007. Acarology in Mexico: prehispanic to modern times. In: Morales-Malacara, J. B., V. M. Behan-Pelletier, E. Ueckermann, T. M. Pérez, E. G. Estrada-Venegas & M. Badii (eds) Acarology XI: Proceedings of the International Congress pp. 21–26. Instituto de Biología and Faculdad de Ciencias, Universidad Nacional Autónoma de México, Sociedad Latinoamericana de Acarología: México.
[K06] Kwiecinski, G. G. 2006. Phyllostomus discolor. Mammalian Species 801: 1–11.
[L07] Lareschi, M. 2007. Seasonal occurrence of ectoparasites associated with the water rat Scapteromys aquaticus (Muridae, Sigmodontinae) from Punta Lara, Argentina. In: Morales-Malacara, J. B., V. M. Behan-Pelletier, E. Ueckermann, T. M. Pérez, E. G. Estrada-Venegas & M. Badii (eds) Acarology XI: Proceedings of the International Congress pp. 233–240. Instituto de Biología and Faculdad de Ciencias, Universidad Nacional Autónoma de México, Sociedad Latinoamericana de Acarología: México.
[L51] Lawrence, R. F. 1951. New parasitic mites form South African lizards. Annals of the Transvaal Museum 31 (4): 447–459.
[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.