66 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



Pediopsis tristis v. D. (Plate 11. , fig. 3.) 



This is a large, narrow, grayish-brown species from one-fifth to one- 

 fourth of an inch long. The head from above appears only as a light 

 line from the eyes around the angular point of the pronotum. The 

 pronotum has a narrow light margin behind and is covered with fine 

 light hairs, the wings are slightly transparent, setting off the dark- 

 margined raised veins. Easily recognized by the face below being 

 light-greenish with a large black spot in the middle below the eyes and 

 a band on the margin above. 



The larvae are very similar in form to those of B. distinctus, but the 

 abdomen is not as strongly ridged and the head is broader. They are 

 reddish- brown above, marked with whitish on some of the sutures, 

 and with four dark-margined light spots in the form of a square on the 

 body. The whole surface is covered with fine white hairs, giving a 

 light reflection. The face is light with a large black spot as in the 

 adult. 



The species seems to be strictly confined to plum trees, to which it 

 is admirably adapted in color. They were found to occur most abund- 

 antly on the native plums but have been taken from cultivated varieties. 



The larvae appear in May and have all issued as adults by the end 

 of June. The first adults appear about the third week in June and are 

 found abuudantly throughout July, disappearing before the middle of 

 August. 



Pediopsis ferruginoides V. D. (Plate II., Fig. 4.) 



This is a very pretty rusty-red species a little larger than viridis, 

 being nearly one-fourth of an inch long (5 mm.); the females vary 

 from reddish-orange all over except for a large transparent s[)ot before 

 the end of the wings to dark reddish-brown ; in this case the light spot 

 extends clear across the wings, dividing the dark up into two parts. 



The larvae are yellow and brown in general imitation of the adult, the 

 head and pronotum yellow, the rest of the body brown with a trans- 

 verse band across the back of the wing pads and another across the 

 abdomen. 



They occur on the narrow-leaved willows, very commonly. The 

 larvae were found early in June, from which the males began to issue 

 late in the month and the females by the first of July. The males soon 

 after disappeared, the females remaining through the month. 



