Agrilinellus, Dellacasa & Dellacasa & Gordon, 2008

Key to species of Agrilinellus

1. Elytral striae extremely fine, superficial, faintly punctured, not crenulate; intervals almost imperceptibly punctured ( Fig. 43 View Figure 43-46 ). 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 View Figure 1-10 , 11 View Figure 11-20 , 23 View Figure 21-32 , 44-46 View Figure 43-46 ); humerus denticulate or subdenticulate .. .................................................................................................................................................. 3

— Shape subcylindrical, strongly convex ( Fig. 24 View Figure 21-32 , 35, 40 View Figure 33-42 ); 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 View Figure 43-46 ). 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 View Figure 43-46 ) ................................................................................................................................................... 4

4(3). Pronotum dually punctured, basal border always entire; clypeus obtusely angulate at side of median sinuosity ( Fig. 45 View Figure 43-46 ). 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 View Figure 43-46 ). 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 View Figure 47-49 ), 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 View Figure 47-49 ), nearly imperceptibly pubescent preapically; pronotum shiny, sparsely punctured ........................... 6

6(5). Elytral striae deep, strongly crenulate; larger pronotal punctures umbilicate ( Fig. 47 View Figure 47-49 ). 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 View Figure 47-49 ). 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)