2 University of Michigan 



Prothorax also like tristani, except that the submedian dor- 

 sal spots on the middle lobe are wanting in sahaleticns, and the 

 posterior lobe is divided in its anterior half by a broad brown 

 band which is continued posteriorly as a yellowish or paler 

 area than the adjoining green. 



Thoracic pattern as figured (plate II., fig. 9) ; essentially the 

 same as tristani, a few minor dift'erences are no more than in- 

 dividual variations. 



Adomen like tristani; a green dorsal basal spot on 2, fading 

 out posteriorly, but no pale dorsal posterior spot in either 

 species; Calvert's description of the dorsal abdominal mark- 

 ings requires some correction; the pale yellowish or whitish 

 middorsal stripes are confined to 3-6, y, as frequently in gom- 

 phines, having an entirely different pattern ; moreover, on 3-5 

 these dorsal stripes reach the apices of the segments as thread- 

 like lines; the basal two-fifths or half of 7 is yellow, this pale 

 area with a narrow, median, interrupted, transverse brown 

 ring; 10 is conspicuously paler than 9 in both species, being 

 that dull reddish orange or brown which appears in the color- 

 ation of many gomphines ; 9, and more conspicuously 10, nar- 

 rowly margined apically with black; lateral spots on 3-6 pale 

 gray, as described in tristani. 



Form of abdomen as described for tristani, except that the 

 hind margin of 9 is as figured (plate II, fig. 10). It is the 

 same in the specimen of tristani given me by Dr. Calvert. 



Genitalia of 2 indistinguishable from those of tristani as 

 figured and described by Calvert. 



Abdominal appendages as figured (plate II, figs. 10 and 11). 

 The superior appendages are distinguished at once from those 

 of tristani by the more apical position of the dorsal and ventral 

 branches of each appendage, as seen in profile, and by the 

 greater development in sahaleticns of the dorsal branch and the 



