SCHIZONEURA ULMI. 99 



permits the disengagement of the Hmbs, and the rapid 

 growth of a golden yellow pilose coat. The growth of 

 this covering is remarkable under a high microscopic 

 power. The hairs shoot out like magic from minute 

 papillae, and in about half a minute the yellow shining 

 body, which rapidly pulsates during this process, is 

 invested with the setose covering alluded to. On 

 one occasion I counted the rate of these births, and I 

 found that two, on an average, were born per minute, 

 and that for a considerable time. 



When first born the investing membrane seems to 

 have a lubricating substance upon it. This must have 

 some tenacity also, for some of these young, just com- 

 mencing to walk, carried off on their backs several of 

 their less aged sisters. After this multiplying process 

 has continued for an hour or more, it is not to be 

 wondered that the imago should much change her 

 shape. 



These young, the produce of the first generation of 

 winged females, have long rostra. 



The pup^ are long, pale green, and clothed with 

 white filamentary matter, like the larvae. 



Winged vivijmrous female. 



Expanse of wings 

 Size of body 

 Length of antennge 



Long oval, wholly black. Abdomen much ringed, 

 and brownish. Antennse with third joint very long, 

 longer than all the other joints taken together; third and 

 fourth joints cupped or ringed. Rostrum short. Eyes 

 black and prominent. Abdomen furnished with nume- 

 rous white filaments, mostly of a cork-screw form, which 

 is apparently caused by the extrusion, from minute 

 pores of silky matter, in a plastic condition. These 

 filaments are most abundant tovv^ards the tail end. 

 Wings broad and rounded at their tips ; membranes 



