ARTIFICIAL KEY TO SPECIES 

 This key was built using characters visible under low 

 magnification, without dissection. Several species appear 

 in the key more than once, beacuse some characters are 

 variable or have an intermediate state on some species. 

 Couplet 3 is the best example of a character that can be 

 difficult to interpret. If a specimens does not adequately 

 key, or does not match what it does key to, then try the 

 other choice in the couplet. 

 1. Antennomere IX triangular, sides straight, as long or 



longer than wide (Figs. 6k, 6n-o) ; body convex dorsally 



(Fig. 2b) 2 



1*. Antennomere IX trapezoidal to semicircular, sides angled 

 or rounded, generally wider than long (Figs. 6a- j, 61- 

 m) ; body parallel-sided, elongate or ovoid; flattened 



above (Fig. 2) 3 



2. (1) Pronotum with 2 free spots (Fig. 24) 



vespertilio Lacordaire 



2'. Pronotum with central stripe (Fig. 25) n. sp. 1 



3.(1') Antennal club segments distinctly asymmetrical; 

 antennomere XI larger (wider or longer) than 



antennomere X (Fig. 6a-f) 4 



3'. Antennal club segments symmetrical; antennomere XI size 

 variable; if appearing asymmetrical, antennomere XI 



66 



