June.S9i] PSYCHE. 267 



e 1 . The lower third of tegmina free from dark markings, except in the 

 anal area ; markings of tegmina hardly pantherine ; tegmina ta- 

 pering and basal lobe of costal margin prominent, the width of 

 the tegmina at this point being fully a third greater than at the 

 tip of the lower ulnar vein ; lateral carinae of pronotum not very 

 sharp. ...... (//"•) phoenicopterus. 



e 2 . Not more than the lower fourth of tegmina, if any, free from dark 

 markings ; markings of tegmina distinctly pantherine ; tegmina 

 subequal and basal lobe of costal margin less pronounced, the 

 width of the tegmina at this point being scarcely more than a 

 sixth greater than at the tip of the lower ulnar vein ; lateral ca- 

 rinae of pronotum sharp. 

 f 1 . Vertical scutellum hexagonal or heptagonal, broader than long, 

 the sides very rapidly narrowing in front and distinctly angulate 

 next the front edge of the eye ; light transverse markings of api- 

 cal half of tegmina scarcely more than half as broad as the 

 darker markings. ..... (//.) pantherinus 



f 2 . Vertical scutellum longer than broad, pyriform, the sides distinctly 

 rounded and less rapidly narrowing ; light markings of apical 

 half of tegmina almost or quite as broad as or even broader than 

 the darker markings. • 

 g l . Granules on dorsum of metazona by their confluence distinctly fol- 

 lowing lines forming oblique rugae parallel to the hind margin ; 

 lateral canthi of pronotum as distinct and sharp on the hinder 

 part of the prozona as on the front part of the metazona. 



( H. ) haldemanii. 

 g 2 . Granules on dorsum of metazona rarely confluent and when con- 

 fluent showing no marked tendency to follow lines parallel to 

 hind margin ; lateral canthi of pronotum much less distinct and 

 duller on hinder part of prozona than on front part of metazona. 



(//.) texanus. 

 d 2 . Frontal costa not at all or scarcely in the least narrowed at its upper 

 extremity, always more than a third, sometimes nearly a half, 

 the width of the space between the eyes, the scutellum of the 

 vertex divided by longitudinal and transverse carinae into four 

 subequal quadrants ; tips of the wings in the $ usually clouded, 

 the large central dark spot of the tegmina usually involving the 

 extreme base of the area of the ulnar fork of the tegmina ; cal- 

 caria of hind tibiae markedly unequal on opposite sides. 

 e 1 . Lateral canthi of pronotum not very sharp, interrupted and devious 

 between the sulci ; metazona of 9 distinctly longer than prozona. 



