392 PROCEEDINGS OF THE ACADEMY OF [Sept., 



dull hoary, the bands very weak, narrow and broken into annuli, the 

 whole insect being much duller and more inconspicuous than the usual 

 type. The Salt Lake City female has the bands of about average 

 width, but weak and rather broken. Antlers and Debeque specimens 

 are of the type which might be called normal or typical, with the bands 

 distinct, broad and solid, and the lateral lobes of the pronotum moder- 

 ately variegated. Austin Bluffs specimens are overcast with reddish 

 ochraceous, one with the bands more distinct and solid than the other; 

 Manitou individuals overcast with dull red, the bands variable in 

 intensity and solidity, but not in width, one specimen having the bands 

 quite blackish. The Garden of the Gods specimens are particularly 

 interesting, being entirely washed with brick red, the tegminal bands 

 distinct but narrower than usual. 



The Garden of the Gods specimens are very interesting as the suffus- 

 ing tint is the predominating color of that region, and in line with this 

 one would expect a uniform very pale type from strongly alkaline 

 regions, which does not hold true of the large amount of material of 

 this species seen. Series from San Diego, California, one of the original 

 localities; Alamogorclo, New Mexico, and Quartzsite, Arizona, are 

 extremely variable among themselves, and each exhibit extremes as 

 different, or nearly so, as those in the material here treated. How- 

 ever, no specimens quite as reddish as the Garden of the Gods individual 

 have been seen from other localities. The band of the wing is quite 

 narrow and weak in some of the Manitou specimens,^* and heavy in 

 Whitehall and Muir individuals. 



The species was generally distributed and equally abundant in the 

 localities in which it was collected. The specimens taken about the 

 Garden of the Gods showed remarkable protective coloration, as all 

 were overcast with brick red which blended exactly with the character- 

 istic brick red formation of the Garden. This was the only species 

 found on these outer oppings. 

 Trimerotropis coeruleipennis Bruner. 



Salt Lake City, Utah, Aug. 13, 2 d', 1 9. Top of Ensign Peak, 

 Salt Lake City, Utah, Aug. 13, 1 d", 2 9 . 



These specimens of this beautiful species have the tegminal bars 

 uniform in pattern and varying but slightly in intensity, except in the 

 female from Salt I^ake City in which they are quite dark. The colora- 

 tion of the ventral sulcus of the caudal femora varies from black with 

 two light bars in the distal half to but one bar in the region, while in 



'* These may possibly represent one of the other species of the vinculata group - 



