OKTHOPTERA ACEIDIDAE PEZOTETTIX HDMPHKEYS1I. 891 



Jarge deep puncture in the channel exactly between the upper corners of 

 the eyes ; frontal costa very broad and flat, fading below ; sides parallel ; 

 lateral carinse quite distinct, diverging slightly toward the corners of the 

 face. Antennse of medium length. Pronotum short, cylindrical, without 

 any lateral carinse; median carina scarcely apparent; expanding slightly, 

 but regularly, posteriorly ; posterior sulcus about two-thirds back from the 

 front, leaving the posterior lobe very short ; the posterior margin truncate 

 on the back, or curved slightly forward ; the anterior lobes smooth on the 

 sides, marked with distinct shallow depressions on the disk ; the posterior 

 lobe distinctly and densely punctured ; the posterior lateral margin slightly 

 curving inward as it ascends. Elytra mere figments on the sides, not meet- 

 ing on the back, extending" across two segments, spatulate. Wings appear 

 to be entirely wanting. Cerci minute and tapering to a point ; the super- 

 anal plate rather large, triangular, broadly rounded at the apex, marked 

 transversely so as to give it the appearance of being a part of two segments. 

 The prosternal spine stout, conical, and somewhat transverse. 



The male differs in being much smaller and less robust ; the abdomen is 

 but moderately enlarged at the apex ; the cerci are much longer than in the 

 female, flat, and enlarged at the base and apex, the apical portion being 

 somewhat broader than the basal portion ; the anterior apical angle is rounded, 

 while the posterior one is somewhat acute, dentiform ; the super-anal plate 

 is bicarinate longitudinally ; sub-anal plate slightly elongate and cone- 

 shaped. 



Color (after immersion in alcohol). Yellow, with black and brownish 

 markings ; male and female similar. The general color throughout is a 

 bright yellow, therefore I will note only the markings on this yellow 

 ground. A broad piceous black stripe on the sides of the pronotmn, 

 extending from the anterior margin to the posterior sulcus, witli an 

 oblique yellow stripe extending through it from the lower anterior angle to 

 the middle of the upper margin, thus leaving a triangular black spot above 

 in front immediately behind the eye ; the sides of the meso- and meta-thorax 

 striped obliquely with black ; a black spot on each segment under the 

 upper margin of the elytra. All of these black markings are margined by 

 a brighter yellow than that which surrounds it. Dorsum of the anterior lobes 



