242 THE CA.NADIAN ENTOMOLOGIST. 



immaculate yellow on the costal region, but have either a smoky or a 

 distinctly pink or rosy shading from the base nearly to the hind margin 

 over the central and lower portion. This shade is often darkest on the 

 veins, and forms a stronger contrast with the costal region than is seen in 

 punctirena. The $ abdomen is more thinly scaled than is the case with 

 punctirena^ is longer, and tapers narrowly to a point from which the 

 ovipositor generally protrudes. The type is in the British Museum, and 

 is. Sir George Hampson tells me, "a yellow form, partly suffused with 

 fuscous." 



Fnnctirena was described from Colorado, Wyoming, and Cartwright, 

 Man., and a poor figure accompanies the description. The type is a 

 Cartwright specimen, and is in the U. S. National Museum. I have a $ 

 from Ottawa, and a very imperfect specimen, but one of which the identity 

 is beyond question, taken on the summit of Mt. Washington, N. H. In 

 all I have at present under examination 23 (^ (^ and 34 ? $ , and all but 

 the two above mentioned are Calgary specimens. Expanse of males, one 

 34 mm., another 44 mm., the rest from 39 to 43 mm. Females 41-45 

 mm. A description of the colour would sound exactly like that of discolor, 

 but whilst the variation in shades of yellow or reddish covers the variation 

 for that species, discolor is decidedly the brighter coloured species of the 

 two, but the extreme range of variation in punctirena is greater. The 

 colour difference, though individuals can be occasionally matched, is 

 obvious in a series, but hard to express in words. Punctirena has the 

 same smoky or fuscous suffusion, but this has a strong tendency to obscure 

 both the ground colour and the maculation, which is not the case in dis- 

 color. A few specimens appear to be of a uniform smoky-brown ground, 

 with a faint reddish or orange tinge, and as a vfh.o\t pttnctirena runs very 

 much the darker of the two, and none of my specimens can be called rosy. 

 The t. a. line forms an obtuse, but tnore or less rounded angle in the sub- 

 median interspace. The angle may be pointed, but is generally a larger 

 angle than that formed by the same line in discolor. The discoidal spots 

 are more often nearly concolorous, rarely contrasting with ground colour, 

 and there is always a very distinct dark spot on the lower edge of the 

 reniform. This spot is evident even when the rest of the maculation is 

 obscured. The secondaries are duller than in discolor, and though they 

 generally have a smoky suffusion throughout their lower portion, the rosy 

 shade never seems to be present, the veins are not distinctly darker, 

 and costal area, though generally paler, does ?iot contrast. The $ abdo- 



