Macrolampis attenuatus (Gorham, 1881)
Photinus attenuatus Gorham 1881: 41
Two male specimens bearing syntype labels were located, however it is unclear how many Gorham (1881) examined. The male also bearing a red type label is designated as the lectotype, while the second male is designated as a paralectotype. Labels for the designated lectotype specimen are as follows:
“ SYN-/ TYPE ” “Type” “165.” “ Mexico./Salle Coll.” “ B.C.A.Col. III.(2)./ Photinus /attenuatus, ♂ /Gorham”. A red label is added with the following text: “ LECTOTYPE / Photinus attenuatus Gorham /Designated by/Martin and Powell 2020” .