1.
.
.
.
..

Clypeus (males) reflexed, bifurcate in frontal view (Fig. 1), or slightly reflexed but not bifurcate (females). Pronotum with dense punctures; punctures vermicular to U- shaped, often setigerous (Fig. 2). Elytra with contiguous, U-shaped punctures with a seta in the center (Fig. 3). Length less than 8 mm.

.
.
Paraegidium Vulcano, Pereira, and Martínez
 

1'.
.

 Clypeus not reflexed in males or females. Pronotum and elytra not as above.
.
2
 
Fig. 1. Head (frontal view) of
male P.costalimai showing bifurcate clypeus.
Fig. 2. Pronotal sculpturing
of P.costalimai.
.
Fig. 3. Elytral sculpturing
of P.costalimai.
.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2(1).
.

Labrum semicircular, exerted beyond clypeus. Mandibles with external, lateral lobe (Fig.4).

Aegidinus Arrow  

 

2'.
.

 Labrum not exerted beyond clypeus. Mandibles without external, lateral lobe.
.
3
 
Fig. 4. Head (dorsal view) of Aegidinus sp. Arrow on right points to labrum,
arrow on left indicates mandibles.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3(2).
.
.

Mesofemur (ventral view) with ridge along posterior edge; surface posterior to ridge minutely roughened in
males (Fig. 5).

.
Aegidium Westwood
 
3'.
.

Mesofemur (ventral view) without ridge along posterior distal edge (Fig. 6); surface smooth.

AegidiellusPaulian
 
Fig. 5. Mesofemur (ventral view) of
Aegidium sp. Arrow indicates ridge.
Fig. 6. Mesofemur (ventral view) of Aegidiellus alatus. Arrow indicates absence of ridge.