Erythraeoidea

Adult male Sphaerotarsus allmani, from Southcott (1961).


Belongs within: Trombidia.
Contains: Smaridinae, Erythraeinae, Balaustiinae, Callidosomatinae, Leptus.

The Erythraeoidea are a group of mites in which the adults and nymphs are predatory. The larvae are generally parasitic on other arthropods, though a few species are known to feed on pollen. The erythraeoids are divided between the two families Smarididae and Erythraeidae. Adults of the Smarididae generally have flattened bodies, and the gnathosoma is placed on an extendable collar that can be fully retracted into the idiosoma. The Erythraeidae are generally less flattened, and the gnathosoma is not fully retractable (Southcott 1961).

Characters (from Southcott 1961): Eyes always present, sessile, one or two on each side. Thumb-complex present to palp. Two pairs of idiosomal sensillae (bothrialae) present: in the adult these are usually placed on a dorsal crista metopica; in the larva usually placed on a dorsal scutum. Chelicerae of adult styliform. Adult peritremes placed dorsally on mouth-cone, longitudinal. Larvae without external genital aperture or anus. Larval coxae always separated. Larva without urstigma.

<==Erythraeoidea [Leptoidea, Rhyncholophidae, Rhyncholophides, Rhyncholophinae]
    |  i. s.: Erythrombium Berlese 1910 (n. d.) S61
    |           `--*E. eusisyrum Berlese 1910 (n. d.) S61
    |--Smarididae [Smaridae, Smaridiidae, Smarisidae] G91
    |    |  i. s.: Hehlenia Oudemans 1941 (n. d.) S61
    |    |           `--*H. papillosa (Koch 1837) (n. d.) (see below for synonymy) S61
    |    |         Pilosoma Southcott 1961 S61
    |    |           `--*P. pluto Southcott 1961 S61
    |    |         Surasmaris longirostris WL09
    |    |--Smaridinae S61
    |    `--Hirstiosomatinae S61
    |         |--Trichosmaris jacoti K90, WL09
    |         |--Clipeosoma Southcott 1948 S61
    |         |    |--*C. copiolarum Southcott 1948 S61
    |         |    `--C. jupiter Southcott 1961 S61
    |         |--Hirstiosoma Womersley 1934 [incl. Niemannia Oudemans 1941] S61
    |         |    |--*H. scalare Womersley 1934 [=H. scalaris] S61
    |         |    |--H. ampulligera (Berlese 1887) S61 (see below for synonymy)
    |         |    `--H. latreillei (Grandjean 1947) S61
    |         `--Sphaerotarsus Womersley 1936 S61
    |              |--S. leptopilus Womersley & Southcott 1941 S61
    |              |--S. allmani Womersley 1936 S61
    |              `--S. womersleyi Southcott 1946 [=S. ripicolus Womersley & Southcott 1941 (nom. inv.)] S61
    `--Erythraeidae [Erythreidae, Leptidae, Leptides, Leptoidae, Rhyncholophini, Rhyncholophoidae] G91
         |  i. s.: Morieria Oudemans 1941 (n. d.) (see below for synonymy) S61
         |           |--*M. novaehollandiae Oudemans 1941 (n. d.) (see below for synonymy) S61
         |           `--‘Erythraeus (Erythrolophus)’ mollis Berlese 1923 S61
         |         Cloquetia Oudemans 1941 S61
         |           `--*C. medioareolata (Kramer 1898) [=Rhyncholophus medioareolatus] S61
         |         Pseudoerythraeus Haitlinger 2004 F05
         |           `--*P. ernesti Haitlinger 2004 F05
         |         Proterythraeus [Proterythraeidae] WL09
         |           `--P. southcotti WL09
         |         Phanolophus André 1927 S61 (see below for synonymy)
         |           |--P. oedipodarum (Frauenfeld 1868) (see below for synonymy) S61
         |           `--*Platylophus’ argasoides Berlese 1910 [=*Euplatylophus argasoides] S61
         |         Augustsonella Southcott 1961 G91 [=Augustsonia Southcott 1961 S61; Augustsonellinae WL09]
         |           `--*A. tuberculata (Augustson 1940) [=Erythraeus tuberculatus, *Augustsonia tuberculata] S61
         |         Actineda S22
         |           |--A. pallescens CF77
         |           `--A. vitis S22
         |         Scyphius cerinus [incl. S. pratensis, S. pyrroleucus] CF77
         |--Erythraeinae G91
         `--+--Balaustiinae G91
            |--Callidosomatinae G91
            `--+--Leptus G91
               `--Myrmicotrombium Womersley 1934 S61 [=Myrmicothrombium (l. c.) S61; Myrmicotrombiinae G91]
                    `--*M. brevicristatum Womersley 1934 S61

*Hehlenia papillosa (Koch 1837) (n. d.) [=Rhyncholophus papillosus non Trombidium papillosum Hermann 1804] S61

Hirstiosoma ampulligera (Berlese 1887) S61 [=Smaridia ampulligera S61, *Niemannia ampulligera S61, Smaris ampulligera SB63]

Morieria Oudemans 1941 (n. d.) [=Coerythrolophus Radford 1950, Erythrolophus Berlese 1920 non Swinhoe 1892] S61

*Morieria novaehollandiae Oudemans 1941 (n. d.) [=Erythraeus (*Erythrolophus) froggatti Berlese 1920 non E. froggatti Oudemans 1910, *Coerythrolophus froggatti] S61

Phanolophus André 1927 S61 [=Phanalophus (l. c.) S61; incl. Euplatylophus Radford 1950 S61, Euplathylophus (l. c.) S61, Platylophus Berlese 1910 nec Swainson 1832 nec Koch 1839 S61, Platerythraeus (l. c.) S61; Phanolophinae WL09]

Phanolophus oedipodarum (Frauenfeld 1868) [=Rhyncholophus oedipodarum; incl. Smaridia magnifica Berlese 1918, Smaris magnifica, *Phanolophus nasica André 1927, Smaris nasica] S61

*Type species of generic name indicated

REFERENCES

[CF77] Canestrini, G. & F. Fanzago. 1877. Intorno agli Acari Italiani. Atti del Reale Istituto Veneto di Scienze, Lettere ed Arti, Serie 5, 4: 69-208, pls 202-207.

[F05] Fernández, J. 2005. Noticia de nuevos táxones para la ciencia en el ámbito Íbero-Balear y Macaronésico. Nuevos táxones animales descritos en la península Ibérica y Macaronesia desde 1994 (IX). Graellsia 61 (2): 261-282.

[G91] Gabryś, G. 1991. Intergeneric relationships within Erythraeidae (Acari, Actinedida). 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. 207-212. SPB Academic Publishing: The Hague.

[K90] Kethley, J. 1990. Acarina: Prostigmata (Actinedida). In: Dindal, D. L. (ed.) Soil Biology Guide pp. 667-756. John Wiley & Sones: New York.

[S22] Schweizer, J. 1922. Beitrag zur Kenntnis der terrestrischen Milbenfauna der Schweiz. Verhandl. Naturf. Ges. Basel 33: 23-112, 4 pls.

[SB63] Schweizer, J. & C. Bader. 1963. Die Landmilben der Schweiz (Mittelland, Jura und Alpen): Trombidiformes Reuter, mit 217 Arten und Unterarten und 193 Originalzeichnungen. Denkschriften der Schweizerischen Naturforschenden Gesellschaft [Mémoires de la Société Helvétique des Sciences Naturelles] 84 (2): i-vi, 209-378.

[S61] Southcott, R. V. 1961. Studies on the systematics and biology of the Erythraeoidea (Acarina), with a critical revision of the genera and subfamilies. Australian Journal of Zoology 9: 367-610.

[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.

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