252 



hardly discernable from the black central mark and may 



simply indicate that it is still teneral. 



Specimens examined . Only 2 specimens, representing 2 

 collection records, were studied. Label data: Mexico, 

 Chiapas, 24 mi. NW Ocozocoautla, 24-VI-1965, H. R. Burke, et 

 al. [1, USNM] ; Veracruz, Omealca, 6-IV-1903, F. K. Knab [1, 

 USNM] . 



Distribution . Known from Mexico (Fig. 129) . 



Remarks . Several other Ischyrus species have males 

 with the prosternum expanded but not to the extent seen in 

 this species. 



Ischyrus n. sp . 3. 



Diagnosis . Recognized by its elongate-subcylindrical 

 body shape, pit in the metasternum behind each mesocoxa, T- 

 shaped central elytral marking, and central pronotal stripe 

 with a longitudinally elongate spot on each side at base. 



Description . Length: 4.3-5.4 mm; Width: 2.1-2.6 mm. 

 Body elongate, subcylindrical, widest at basal third of 

 elytra; weakly microreticulate, shining; orange-red with 

 black pattern (Fig. 48) . 



Head orange. Pronotum with central stripe connecting 

 base to apex, widest at base; one elongate spot connected to 

 base near each posterior angle, converging anteriorly. 

 Scutellum dark red. Each elytron with orange-red epipleural 

 fold; large subhumeral spot well removed from base, as large 

 or larger than, and occasionally touching scutellar spot; 

 scutellar spot well removed from base, angled, only 



