124 



[June, 



segments, 21, 17, 108, 55, 50 (3o-|-?). Head dark l)rown, except for a clear 

 median, longitudinal streak ; about twice as broad as loner, with (roughly) 

 6 longitudinal rows of fan-shaped hairs. Prothorax not quite so long as the 

 head, almost wholly brown, with uuiuerous fan-shaped hairs which are absent 

 on the met.ithoracic bosses. Wings, all the veins bordered with brown, the 

 brown area expanded at the tip of each. Abdomen mottled, with broad central 

 biinds on all the segments and marginal areas, the fan-shaped hairs confined to 

 the brown areas. Cornicles enclosed in a brown area. Cauda markedly 

 knobbed ; anal plate bilobed. Legs with femora of first and second pairs 

 markedly thickened; length of hind leg: trochanter "07 mm., femur 'SS mm., 

 tibia '56 mm., tarsi •19 mm. 



Length 1-9 mm. 



Described from 1 apterous $, 1 pupa, and 1 alate $ in the Walker 

 Collection. 



A t 



Fig. 3. — Soltvuaphis insessa. A. Apterous $, 

 C. Last antennal segment of same. 



S, familiaris, B. Immature 2 . 



It is with considerable hesitation that I attribute this species to 

 Walker. He says that his insessa was found on Viola tricolor, and he 

 describes only the apterous viviparous $ . Tlie species here described 

 stands, however, under insessa Walker in our collections, but the card 

 bears the label " sea-wormwood " in what appears to be Walker's hand- 

 writing. The specimens were mounted in the same way as the rest of 

 Walker's material, and it is very improbable that any mistake could have 

 been made as to the labelling. It is much more likely that Walker 

 misrecordcd it from Viola. 



