183 



Ischyrus quadripunctatus (Olivier) 



Erotylus quadripunctatus Olivier 1792:431, 437. 



Mycotretus quadripunctatus (Olivier) , De jean 



1836:429 (1837:453) . 

 Ischyrus quadripunctatus (Olivier) , 



Lacordaire 1842:127-128. 

 Ischyrus quadripunctatus Crotch 1873:144, 



Gemminger & Harold 1876:3690. 

 Ischyrus quadripunctatus quadripunctatus 

 (Olivier), Boyle 1954:39-41. 

 Engis variegata Dejean 1821:45 [nomen nudum], 

 Gemminger & Harold 1876:3691. 

 Mycotretus variegata (Dejean) , Dejean 

 1836:429 (1837:453) . 

 Mycotretus humeralis Chevrolat [nomen nudum] in 

 Dejean 1836:429 (1837:453), Sturm 1843:305. 

 Ischyrus subcylindricus Lacordaire 1842:117-118; 

 new synonymy . 



Mycotretus subcylindricus Chevrolat [nomen 

 nudum] in Dejean 1836:429 (1837:453), 

 Lacordaire 1842:117-118. 

 Ischyrus graphicus Lacordaire 1842:125-126. 

 Ischyrus quadripunctatus graphicus 



Lacordaire, Boyle 1954:41-43/ new 

 synonymy. 

 Ischyrus quadripunctatus var. alabamae Schaeffer 



1931:175, Mader 1938:19. 

 Ischyrus quadripunctatus var. antedivisa Mader 

 1938:19, Boyle 1954:39-41. 



Ischyrus quadripunctatus Var. A Lacordaire 

 1842:127-128. 

 Ischyrus puncticollis Gorham 1887:44-45; new 

 synonymy. 

 Ischyrus chiasticus Boyle 1954:43-46. 



Ischyrus quadripunctatus chiasticus Boyle, new 

 status. 



Diagnosis . Characterized by 4 free pronotal spots in 

 transverse arch (rarely connecting with other markings) , 

 club antennomeres asymmetrical, and maxillary palp terminal 

 segment narrowed (Figs. 7f, 20). 



Description . Length: 4.8-8.8 mm; Width: 2.3-3.7 mm. 

 Body elongate, widest at basal third of elytra; variably 

 microreticulate, dull to shining; yellow-orange with black 

 pattern (Figs. 42-47) . 



