86 



Collector/ Van Dyke Collection/ [red] Holotype Ischyrus 



aleator Boyle/" [CASC, Type #8369, studied]. Sex male. 



Specimens examined . The holotype and 44 specimens, 

 representing 20 collection records, were studied (see 

 Appendix C for specific data) . 



Distribution . Southeastern Arizona, Mexico, El 

 Salvador, and Guatemala (Fig. 84). 



Etymology . aleator: Latin = dice layer, gambler. Name 

 alludes to the resemblence of the trifoliate tawny spot on 

 the pronotum to the emblem of the club suit in a deck of 

 cards (Boyle 1954) . 



Taxonomic notes . The variation in leg color, size of 

 elytral scripe, and development of metacoxal lines, appear 

 to be correlated with geographic range. Few specimens with 

 banded legs were studied from central Mexico and Central 

 America. The importance of this color variety is uncertain. 



References . Boyle 1956:133,136-137,169 f. 131-132; 



Skelley et al. 1991:65. 



Ischyrus angularis Lacordaire 



Ischyrus angularis Lacordaire 1842:126 



Tschyrus quinquepunctatus Gorham 1887:43-44, t.3 f.6, 

 new synonymy. 



Diagnosis . Characterized by its elongate body, 

 complete central elytral band, apical elytral spots touching 

 margins, and 2 free and 3 basal pronotal spots. 



Description . Length: 5.0-5.8 mm; Width: 2.4-2.9 mm. 

 Body elongate, parallel-sided, widest at basal third of 



