ISANTHRENE. 171 



Sect. II. Hiad wing with the discocellulard angled above median nervure. 



A. Legs and antennae scarlet. 



a. Abdomen blacii with orange patches crabroniformis. 



b. Abdomen orange with black segmental lines, the 



extremity crimson thyestes. 



B. Tibiffi and tarsi crimson ; antennae black ustrina. 



C. Legs without red. 



a. Fore coxte pure white in male, 

 a^. Antennie orange-red. 



«^. Legs jfiUow and black ; abdomen with three 



spots beyond the basal segment melas. 



b'^. Legs black. 



a^. Abdomen with four pairs of spots beyond the 



basal segment pyrocera. 



b^. Abdomen with three to no pairs of spots 

 beyond basal segment. 

 a*. Fore wing with tlie terminal band very 



wide on apical area perbosci. 



6*. Fore wing with the terminal band expanding 



slightly on apical area echonon. 



c'. Fore wing with the terminal band narrow 



and even througliout championi. 



b^. Antenna black, the tips fulvous inceyidiaria, 



h. Fore coxa; of male not pure white. 



fl^. Abdomen black or with the terminal segments 

 black. 

 (i^. Antennas black ; abdomen with slight fulvous 



spots on 2ud segment pertyi. 



b"^. Antennae black with yellow tips, 

 a'. Abdomen with white patch on 1st segment 



and line on 2nd azia. 



b^. Abdomen with segmental yellow lines on Ist 



four segments pelor. 



c^. Antenna; yellow, usually with some black on 

 basal half of shaft. 

 a?. Abdomen wholly black above, the 1st and 2nd 



segments ventrally edged with white aferrima. 



b^. Abdomen with one or two pairs of spots 

 beyond the patch on basal segment. 

 a^. Fore wing with the terminal band hardly 



expanding on apical area varia. 



b*. Fore wing with the terminal band very wide 



on apical area basifera. 



c^. Abdomen with two fulvous and yellow bands, notipennis. 



#. Abdomen with four fulvous and yellow bands. 



«'. Fore wing with the terminal band narrow 



throughout. 



a". Fore wing with the costal half clouded 



with fulvous ; abdomen with narrow 



segmental lines between the fulvous 



bands profusa. 



b'\ Fore wing with the costal area hyaline 

 yellow ; abdomen with broad black 



bands between the fulvous bands vespiformis. 



b*. Fore wing with the terminal band ex- 

 panding towards apex porphyria. 



b^. Abdomen yellow, with slight dorsal black stripe 



and segmental lines minor. 



