Aleochara (Coprochara) signaticollis Fairmaire and Germain

Aballay, Fernando H., Chani-Posse, Mariana R., Ayón, María Rosana, Maldonado, María Belén & Centeno, Néstor D., 2014, An illustrated key to and diagnoses of the species of Staphylinidae (Coleoptera) associated with decaying carcasses in Argentina, Zootaxa 3860 (2), pp. 101-124 : 110

Aleochara (Coprochara) signaticollis Fairmaire and Germain

( Figs. 4 , 30 )

Diagnosis (based on Klimaszewski 1984: 20–22 and Maus 2001: 42–46). Aleochara signaticollis differs from the remaining species of the genus by the head and pronotum sparsely pubescent, the pronotum with two longitudinal, subparallel rows of setiferous punctures, arranged in more or less defined lines and each elytron with one paler, not well defined and blurred spot in the apicomedial part. Length 3.0–7.0 mm.

Distribution. Southern South America ( Maus 2001).

Bionomics. Like most other species of the subgenus Coprochara , A. signaticollis is a dung-dwelling species which can also be found on carrion and other decaying organic material ( Maus 2001).

Remarks. Maus (2001) provides insight into the strong external similarity shown by A. signaticollis and A. notula , being only distinguished from each other by genitalic features.

Figures

FIGURE 1 – 12. Habitus: 1, Atheta sp.; 2, Aleochara bonariensis Lynch; 3, A. puberula Klug; 4, A. signaticollis Fairmaire; 5, Anotylus Thomson; 6, Eulissus chalybaeus Mannerheim; 7, Neohypnus sp.; 8, Platydracus chrysotrichopterus Scheerpeltz; 9, Platydracus scabrosus (Curtis); 10; Creophilus maxillosus (Linnaeus); 11. Creophilus variegatus Mannerheim; 12, Belonuchus rufipennis (Fabricius).

FIGURE 25 – 32. Head (lateral view): 25, Aleochara puberula; 26, Philonthus longicornis. Maxillary palpus: 27, A. puberula. Head and pronotum: 28, A. bonariensis; 29, A. puberula; 30, A. signaticollis. Mesosternum: 31, A. puberula; 32, A. signaticollis. Abbreviations: Mc; mesosternum carina; MxP, maxillary palpus.