MORGAN HEBARD 23 



The large series before us shows no appreciable size variation, 

 nor is any marked variation in tegminal or wing length indicated, 

 as was also found true for A. lateralis.-'^ 



The extremes of maximum recession and intensification of color- 

 ation are not widely different, but the following features should be 

 noted. In recessive examples the" paired pronotal dark longitudi- 

 nal lines are narrower and, in extreme individuals, broken; the 

 tegmina show the dark suffusion much reduced, this remaining 

 strongly defined only in the anal fields and beyond the anal vein. 

 In intensive examples the paired pronotal dark bars broaden and, 

 in extreme examples, almost fuse at the caudal margin and again 

 near the cephalic margin, leaving the small meso-caudal inter- 

 vening area alone conspicuously pale; the tegmina when at rest 

 appear solidly dark in such examples, except narrowly along the 

 costal margins. 



In addition to the type and allotype, we have before us the fol- 

 lowing material, which may be considered paratypic. 



Porto Bello, Panama, IV, 17, 1912, (Busck), i 9. 



Taboga Island, Pan., VI, 11, 191 1, (Busclc), i cf. 



Tabernilla, Canal Zone, Pan., VI, I to VII, 31, 1907 and 191 1, (Busck), 190", 13 9. 



Empire, C. Z., Pan., XI, 14, 1913, (Hebard; under rubbish on edge of jungle), i 9. 



Canal Zone boundary five miles west of Empire, Pan., XI, 14, 1913, (Hebard), 

 Id". 



Paraiso, C. Z., Pan., IV, 24 to V, 10, 1911, (Schwarz, Busck), i ci", 2 9. 



Cabima, Pan., V, 20 and 22, 191 1, (Busck), 2 9. 



Corozal, C. Z., Pan., XI, 14. 1913, (Hebard), 2 9 ; IV, 6, 191 1, (Busck), i cf . 



Chorrera, Pan., V, 10 to 17, 1912, (Busck), 30?". 



Ootheca. — One female is carrying an almost completely extruded 

 GOtheca, with suture dorsad. This ootheca is very remarkable in 

 having a very heavy sutural ridge, in height one-quarter the width 

 of the remaining portion of the ootheca and nearly as wide as high, 

 this ridge showing on its dorsal surface a succession of raised longi- 

 tudinal fleur-de-lis with their lateral portions elongate and slender. 

 The lateral surface of the ootheca is very strongly convex, parti- 

 tioned into five convex sections by deep vertical sulci and ribbed 

 longitudinally, showing on each side fourteen carinae. The 

 ootheca is about two millimeters in length. 



-^ That such variation is very decided in some species is shown by Shelford for his A. 

 varipennis, while in the small series of A. fallax before us, great tegminal and wing 

 variation is found. 



MEM. AM. ENT. SOC, 4. 



