180 THE CANADIAN ENTOMOLOGIST 



the lateral border of the metathorax yellowish brown; a brownish yellow median 

 line on the thorax meets a V-shaped line of the same colour on the head between 

 the eyes. Abdomen yellowish brown with a series of darker median transverse 

 spots in the centre of each segment, becoming successively smaller toward the 

 caudal end; abdominal spiracles indicated by a series of small dark dots. Eyes 

 dark reddish. Antennae brownish yellow, tip of first three segments somewhat 

 lighter. Legs concolorous with antennae; femora, except tip, and tarsi darker. 

 Caudal margin of meso- and metathorax either straight or curved slightly 

 forward. 



Stage III (Fig. 4). Length L6 mm., greatest width (across mesothorax) 

 .7 mm. Head and thorax shining black ; inner margin of eyes narrowly yellowish ; 

 a narrow, yellowish median line on thorax, which, as in the preceding stage 

 meets a V-shaped line of the same colour on the head between the eyes. In the 

 darker specimens this is sometimes but faintly indicated on the thorax. 

 Abdomen dark reddish, marked as in preceding stage, except that in the darker 

 specimens the median spots entirely overlie the ground colour. Eyes dark 

 reddish. AntenncC pale brownish; tip of first three segments lighter. Legs 

 dark brownish or dusky; tip of femora fighter; tarsi somewhat darker. Wing- 

 pads becoming apparent. 



Stage IV (Fig. 5). Length L8 mm., greatest width (across wing-pads) 

 about 1 mm. Head and thorax black, somewhat shining and finely punctate. 

 The narrow median line on thorax and V-shaped line on head in this stage are 

 reddish. Inner .border of eyes narrowly reddish. Abdomen very dark reddish 

 brown; posterior border of segments narrowly reddish. Eyes blackish. 

 Antennae grayish brown; extreme tip of first two segments lighter. Legs con- 

 colorous with antenna?; extreme tip of tibicC lighter; tarsi darker; coxa? and 

 trochanters pale translucent yel'lowish. Wing-pads reach nearly to fourth 

 abdominal segment. Venter reddish brown. Beak brownish yellow; tip and 

 base blackish. 



S^age V (Fig. 6). Length 3.1 mm., greatest width (across wing-pads) 1.8 

 mm. Much the same as the preceding stage. There is, however, no median 

 line on the thorax or V-shaped line on the head, and the antennae are some- 

 what darker than in the preceding stage. The femora, except the tip, and the 

 basal half and tip of the tibiae are dark brownish. The wing-pads now reach 

 nearly to the fifth abdominal segment. 



Adult Fig. 7). Length 5 mm. Shining black; membrane dark brownish. 

 Eyes dark brown. Leg markings somewhat variable but in general femora are 

 blackish, tip brownish yellow; base and usually tip of tibiae blackish; some- 

 times only base of front tibiae black, and more or less all of middle and hind 

 tibiffi black. Tarsi often entirely blackish, or with two basal segments some- 

 what paler. Beak more or less brownish. Venter shining black, nonpunctate, 

 and ill certain lights finely clothed with short golden hairs. With the exception 

 of the genetalia there is no apparent difference in the sexes. 



Explanation of Plate XIV. 

 Fig. 1. Egg. Fig. 4. Third stage nymph. 



Fig. 2. First stage nymph. Fig. 5. Fourth stage nymph. 



Fig. 3. Second stage nymph. Fig. 6. Fifth stage nymph. 



Fig. 7. Adult. 



