42 ENTOMOLOGICAL NEWS. [Feb., '06 



well for all specimens examined of fugax. Nos. i and 2 are 

 the rule, Nos. 3 and 4 the exceptions of celer. 



About fifty specimens of plangens were examined and Fig. 9 

 suffices for all of them. 



The eye of amazon resembles that of ccler but the shaft of 

 amazon is curiously divided in the middle, the upper part con- 

 nected with occipital border, the lower part with arrow-head. 



In fallax the shaft is generally free, that is, neither con- 

 nected above or below ; in rare cases it is connected with arrow- 

 head. In this species the occipital border is subdivided in the 

 middle, the lower portion of border partly coalesces with occi- 

 pital margin. 



Callidus, dimmocki and indus are the only New Jersey species 

 in which the upper and lower frontal spots coalesce with frontal 

 margin. The pattern of dimmocki is generally very heavy, 

 the green background often reduced to fine lines surrounded 

 by the purple maculation. The design of callidus corresponds 

 at times with that of indus, but as a rule the lower frontal spot 

 of callidus has a tendency to terminate scroll-shaped, which 

 has not been observed in indus. 



The two figures of bistellatns show the extreme range of 

 maculatiou of all the known specimens. 



Delicatulus has often been mistaken for a light and small 

 form of callidzis ; the eye, however, shows decided differences. 

 The upper and lower frontal spots of delicatulus are not con- 

 nected with the frontal margin, the upper spot merges into 

 the occipital border, crowding out the shaft which, at this 

 juncture, is usually disconnected. 



Hilaris, which has so far not been recorded from New 

 Jersey, is the only other species thus far examined in which 

 the upper spot joins the occipital border without allowing the 

 shaft its respectively intermediate position, the shaft frequently 

 being abbreviated. 



This paper represents the result of only one summer's ob- 

 servations, and there is no doubt that many other variations of 

 the species figured will be found. It remains to be seen to 

 what an extent the widely distributed species will show design- 

 variation from those that have been studied. 



