Biological Papers. 181 



oregona, recently described by Mr. Charles W. Leng from 

 specimens taken on the Salt river at Phoenix. The species 

 had undoubtedly come up the canyon from below, as it is 

 abundant along the Verde river. Mature larvae, probably of 

 maricopa, were observed in their burrows in a sandy field 

 eight or ten feet above stream-level during the latter part of 

 July. The first imago appeared on August 31, and the beetles 

 increased rapidly in numbers during the few remaining days 

 of our stay in the canyon. They occurred all along the stream 

 on areas of damp soil or mud left by a recent flood. The color 

 of the specimens varied through all shades of bright green or 

 blue, the females alone exhibiting the deep purple coloration 

 of the elytra. The variety and luxuriance of color involved in 

 the transition from brown, green or blue to rich purple, in the 

 elytra, was remarkable. An occasional specimen had pur- 

 plish-brown elytra, with head and thorax only slightly tinged 

 with green, being not far removed from ordinary oregona. 

 The markings were broad and very constant. A single punc- 

 tulata was taken at Flagstaff, July 13. 



A number of species were taken on the return trip during a 

 stop-over of a day at Albuquerque, N. M., September 5. Most 

 interesting was a variety of hxmorrhagica, similar in size to 

 16-punctata, and probably the same beetle previously taken 

 at Albuquerque by Professor Wickham and determined as 

 16-punctata. It differs from 16-punctata of the Rockies (1) 

 in being dull blue-black instead of brown; (2) in usually lack- 

 ing the brassy iridescence of the under side and legs, and the 

 bright red and green coloration of the pleura; (3) in the 

 color of the trochanters, which are pale rufous and not polished 

 on the surface; and (4) in having the humeral lunule fre- 

 quently entire, and the post-marginal (supplementary) and 

 anteapical dots often lacking, never true of 16-punctata. The 

 two characters, however, that set it apart from any affinity 

 to the rufiventris varieties are (1) the sinuate median band, 

 and (2) the fact that the female elytral apices are separately 

 rounded or squared, the apical lunule at the same time reced- 

 ing somewhat from the apical margin. Of the hundreds of 

 16-punctata that I have taken the median band is invariably 

 interrupted, or at least reduced to a very narrow line, in the 

 middle, while the elytral apices are always in the female 

 conjointly rounded as in the male. These two characters 

 would at once set apart my specimens of Cicindela arizonx 



