Agrilinellus Dellacasa & Dellacasa & Gordon 2008
Creators: name: Dellacasa, Marco
name: Dellacasa, Giovanni
name: Gordon, Robert D.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Agrilinellus

description: Key to species of Agrilinellus   
 1. Elytral striae extremely fine, superficial, faintly punctured, not crenulate; intervals almost imperceptibly punctured (Fig. 43). Shiny black. Length 5.0- 5.5 mm. Mexico (Michoacán).............................................................................................................................  A. abbonai n. sp.    
 — Elytral striae wide, more or less deep, distinctly punctured, more or less strongly crenulated. 2   
 2(1). Shape oval, moderately convex (Fig. 8, 11, 23, 44-46); humerus denticulate or subdenticulate.................................................................................................................................................... 3   
 — Shape subcylindrical, strongly convex (Fig. 24, 35, 40); humerus not denticulate..................... 5   
 3(2). Pronotum coarsely, densely, irregularly punctured, punctures dual; elytral intervals biseriately coarsely somewhat irregularly punctured on each side; punctures with short recumbent hairs (Fig. 44). Reddish brown, elytra yellowish with brownish spots variously arranged. Length 4.0- 5.0 mm. Mexico (Oaxaca).....................................................................  A. oaxacaensis n. sp.    
 — Pronotum subregularly sparsely punctured; punctures even or dual; elytral intervals more or less densely, not coarsely punctured, minutely pubescent on preapical declivity only (Fig. 45-46)................................................................................................................................................... 4   
 4(3). Pronotum dually punctured, basal border always entire; clypeus obtusely angulate at side of median sinuosity (Fig. 45). Piceous; sometimes sides of pronotum more or less widely testaceous and elytra yellowish with several blackish spots variously scattered and/or broadened. Length 4.0-5.0 mm. Mexico (Guerrero, Hidalgo, México, Oaxaca, Puebla, Tabasco, Veracruz), Guatemala...................................................................................................................  A. azteca (Harold)    
 — Pronotum simply punctured, basal border sometimes interrupted at middle; clypeus widely rounded at sides of median sinuosity (Fig. 46). Testaceous; head medially, pronotal disc and some variously scattered elytral spots piceous. Length 3.5-4.5 mm. Mexico (Chiapas); El Salvador (Metapán)..........................................................................................  A. chiapasensis (Galante, et al.)    
 5(2). Elytral intervals strongly alutaceous, thus almost dull, coarsely, densely, somewhat irregularly punctured (Fig. 49), distinctly pubescent mostly laterally and on preapical declivity; pronotum alutaceous, moderately shiny, dually, densely punctured. Blackish brown, sometimes elytra reddish-brown. Length 3.0- 3.5 mm. Mexico (Michoacán, México).........  A. antonioreyi n. sp.    
 — Elytral intervals superficially alutaceous or shiny, sparsely punctured (Fig. 47-48), nearly imperceptibly pubescent preapically; pronotum shiny, sparsely punctured........................... 6   
 6(5). Elytral striae deep, strongly crenulate; larger pronotal punctures umbilicate (Fig. 47). Blackish; elytra dark reddish. Length 3.0- 3.5 mm. Mexico (Nuevo León)....................  A. nuriae n. sp.    
 — Elytral striae not so deep and not so strongly crenulate; larger pronotal punctures not umbilicate (Fig. 48). Blackish; sometimes elytra more or less widely testaceous or with several yellowish spots variously scattered and more or less widened. Length 3.0-4.0 mm. Mexico (Durango, Hidalgo, México, Michoacán, Puebla, Veracruz)..................................  A. ornatus (Schmidt)
description: Published as part of Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2008, Agrilinellus, new genus and four new species of Mexican Aphodiini (Scarabaeoidea: Scarabaeidae: Aphodiinae), pp. 1-16 in Insecta Mundi 2008 (53) on page 4, DOI: 10.5281/zenodo.5170003