1.
.
.
Apex of metatibia with more than 10 spinules. Mandibles
entirely rounded, not sickle-shaped. North America to
South America
.
.
2
 

1'.
.

Apex of metatibia with fewer than 10 spinules. Mandibles sickle-shaped. Africa
.
Xenoproctis
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2(1).
Antenna 10-segmented
 

2'.

 Antenna 8- or 9-segmented
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3(2).
.
Mesosternum with keel extending anteriorly beyond mesocoxae
.
4
 

3'.
.

Mesosternum without keel extending anteriorly beyond mesocoxae
.
5
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4(3).
.
Clypeus in ventral view extending past labrum; weakly trilobed apically in male, rounded apically in female
 

4'.
.

Clypeus in ventral view not extending past labrum, rounded apically in male and female
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5(4).
Antenna with club twice as long as segments 2-7 combined
Byrsopolis
 

5'.
.

Antenna with club shorter than or subequal to segments 2-7 combined
.
6
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6(5).
.
Terminal segment of maxillary palpus as long or longer than antennal club
 

6'.
.

Terminal segment of maxillary palpus shorter than antennal club (nearly as long as antennal club in Cotalpa consobrina)
.
7
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
7(6).
Apex of mentum sinuate or bisinuate or emarginate (Figs. 1-3)
 

7'.

 Apex of mentum notched (Fig. 4)
Figure 1
Figure 2
Figure 3
Figure 4

Figures 1-4. Apex of the mentum. 1) deeply sinuate, 2) weakly sinuate, 3) bisinuate, 4) notched.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8(7).
.
.
Pronotum glabrous. Clypeus subrectangular, angles narrowly rounded. Large claw of at least metatarsus cleft in males; all claws simple in females
 

8'.
.
.

Pronotum setose, at least in places. Clypeus semicircular
(widest at base), angles broadly rounded (P. deserta with subrectangular clypeus). Claws simple in males and females
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9(7).
.
.
Males metallic green; females metallic green, dark brown, or black. Parameres rounded apically. Central Mexico to Honduras
 

9'.
.
.

Males and females reddish-brown, brown, or black.
Parameres truncate apically. Southern Arizona to central Mexico