82 



INSECTA SAUNDERSIANA. 



Centrotus COSTALIS. 



Cyaneo-niger ; prothorax rude punctatus ; comiia lateralia longa, lata, 

 vix obliqua, postice subarcuala, apice acuta ; cornu posticum gracile, 

 rectum, abdomen vix superans : tarsi ferruginei ; alee vitrece ; 

 anticcB subluridce, casta fusca interlineata, striga apud unguium 

 interiorem fusca. 



Bluish black. Prolhorax roughly punctured, not keeled in front ; 

 lateral horns long, broad, diverging, very slightly ascending, slightly 

 curved backward, with two ridges above, acute at their tips; hind horn 

 slender, keeled, straight, acute at the tip, which hardly extends beyond the 

 tip of the abdomen. Knees and tarsi ferruginous. Wings vitreous. 

 Fore wings with a lurid tinge ; costa brown, slightly interlined ; a brown 

 streak by the interior angle. Length of the body 3^ lines; of the wings 8 

 lines. 



a. 



Centrotus chloroticus. 



Testaceus, subpunctatus ; caput, prothorax anticus et femora nigra ; 

 comua lateralia nigra, brevia, conica, vix obliqua, vix arcuata ; 

 cornu posticum gracillimum, abdomen non superans ; alee vitrei ; 

 anticcB basi testacece et punctata, venis testaceis. 



Centrotus chloroticus, MS8. 



Testaceous, minutely punctured. Head and fore part of the protho- 

 rax black. Prothorax hardly keeled in front ; lateral horns black, short, 

 conical, diverging, veiy slightly ascending, hardly curved backward ; hind 

 horn keeled, very slender, acute at the tip, extending to the tip of the 

 abdomen. Femora black, their tips testaceous. Wings vitreous. Fore 

 wings testaceous and punctured at the base ; veins testaceous. Length of 

 the body 2^ lines ; of the wings 5 lines. 



Spain. 



