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There are seven species in this myrmecophilous genus of Scarabaeidae beetle.

Diagnosis. Body length 4.3-5.2 mm, elongate oval to distinctly oval, reddish-brown to nearly black, dorsal surface usually setose. Head smooth. Clypeus rounded each side of median emargination, margin smooth. Pronotum broad, sides explanate anteriorly; lateral edge with distinct fringe of setae, evenly arcuate to posterior angles. Elytra sharply inflexed laterally at interval 8; striae weakly punctured. Mesocoxae widely separated, parallel, flattened, touching elytra near base. Meso- and metatibia apparently with 2 terminal spurs. Meso- and metatarsi slender.

List of Lomanoxia and their Host Ants
Genus and species Author and Year Ant Host Distribution Notes
Lomanoxia alternata Krikken, 1972 Atta cephalotes Suriname
Lomanoxia canthonopsis Skelley & Howden, 2004 ants Costa Rica
Lomanoxia chacocola Krikken, 1972 ants Argentina, Paraguay
Lomanoxia costulata Harold, 1867 Atta sexdens Argentina, Bolivia, Brazil, Paraguay, Suriname
Lomanoxia ituensis Stebnicka, 1999 ants Brazil
Lomanoxia melloi Stebnicka, 1999 ants Brazil
Lomanoxia ovalis Schmidt, 1911 ants Argentina


  • SCHMIDT, A., 1911. Neue Aphodiinen und eine synonymische Bemerkung. Soc. ent. 24-. 35-36, 47-48, 52, 55-56.
  • Skelley, P.E., and H. F. Howden. 2004. A new species of Lomanoxia Martínez from Costa Rica (Coleoptera: Scarabaeidae: Aphodiinae). Insecta Mundi [2003] 17(3-4): 185-190.
  • Stebnicka, Z. T. 1999. Lomanoxia MartÌnez, 1951, and a new tribe Lomanoxiini with notes on comparative morphology (Coleoptera, Scarabaeoidea: Aphodiinae). Acta Zoologica Cracoviensia 42: 279- 286.