Mycotretus fuscitarsis Lacordaire, 1842: 180 Crotch 1876: 448 Gemminger and Harold 1876: 3693 Gorham 1888: 68 Kuhnt 1909: 73 Kuhnt 1911: 49 Blackwelder 1945: 466 Alvarenga 1994: 25 Skelley 1998: 16 Murgas 2006: 8 Mycotretus fuscitarsis Lacordaire, 1842 Taxonomic review of Mycomystes Gorham, 1888 (Coleoptera: Erotylidae: Tritomini) Pecci-Maddalena, Italo S. C. Skelley, Paul Lopes-Andrade, Cristiano Journal of Natural History 2021 2021-05-14 54 47 - 48 3075 3102 (Lacordaire, 1842) Pecci-Maddalena & Skelley & Lopes-Andrade 2021 Lacordaire 1842 [310,785,142,168] Insecta Erotylidae Mycomystes GBIF Animalia Coleoptera 16 3090 Arthropoda species fuscitarsis comb. nov.   Figures 36–39, 56      Mycotretus fuscitarsis Lacordaire, 1842: 180[description].  Crotch 1876: 448;  Gemminger and Harold 1876: 3693;  Gorham 1888: 68;  Kuhnt 1909: 73;  Kuhnt 1911: 49;  Blackwelder 1945: 466;  Alvarenga 1994: 25;  Skelley 1998: 16;  Murgas 2006: 8.    Lectotypeof  Mycotretus fuscitarsis Lacordaire, 1842, here designated ( MRSN; Figure 36–37)  ‘Orizaba [handwritten]\ LECTOTYPE[printed] Mycotretus fuscitarsis Lacordaire 1842[handwritten]’.  Another specimen examined   1 female( MNRJ, dissected) ‘ColeÇão M. Alvarenga [printed]\ Cerro de Plumas, Mexico. Hoege. [printed]\B.C.A., Col.,VII. Mycotretus fuscitarsis. [printed]\1884 [printed]’.   Diagnosis Body shape rounded, TL: 4.63 mm(n = 1). Very similar to  M. coccineusin all diagnostic features, except for the blackish tarsi ( Figures 38–39) and the occurrence in Mexico. Male genitalia: unknown. Female genitalia: vaginal process present, blunt swelling and elongate to the level of gonostyli.   Distribution  Mexico( Figure 56).   Remarks More material and detailed studies are needed to verify whether  M. fuscitarsisand  M. coccineusneed to be synonymised or, on the other hand, be considered as two separated species. Currently, as we have examined only the lectotype(not dissected) and one conspecific female, we prefer not to propose a new synonym here. MRSN 16 3090 1 lectotype [160,613,582,607] MNRJ 16 3090 1 1 [629,1153,582,607] Mexico Cerro de Plumas 16 3090 1