109 



the description, and had previously been labeled as the 



type. 



No difference, except for color pattern, was found 

 between I. boucardi and I. peruvianus, with several 

 specimens exhibiting intermediate color patterns. Based on 

 this, I. peruvianus Gorham is placed in synonymy under I. 

 boucardi Crotch. 



References . Ischyrus boucardi Crotch: Blackwelder 

 1945:465; Gemminger & Harold 1876:3690; Guerin 1948:19; 

 Kuhnt 1909:64; 1911:42; Mader 1942:171; 1951:209-210; 

 1952:159-160. 



Ischyrus peruvianus Gorham: Blackwelder 1945:465; 



Fleutiaux 1886:222; Kuhnt 1909:63; 1911:43; Mader 1942:171; 



1951:209-210; 1952:159-160. 



Ischyrus chacojae Gorham 



Ischyrus chacojae Gorham 1887:43, t.3 f.5. 

 Ischyrus chalcojae Gorham, in Kuhnt 1909:63 

 [misspelling] . 



Diagnosis . Characterized by the black head base, 

 scutellar spot broadly connected to elytral base, central 

 elytral marking a single spot or band, 2 free pronotal 

 spots, and lacking anterior pronotal spots. 



Description . Length 4.8-5.7 mm; Width: 2.6-3.2 mm. 

 Body elongate-oval, widest at basal third of elytra; weakly 

 microreticulate, shining; orange with black color pattern 

 (Figs. 68-69) . 



Head black, often with orange epistome and frons. 

 Pronotum with 2 free spots, base can have 2 small spots. 



