314 



Morning glory (Convolvulua sp?), fow, October. 



Three-seeded mercury {AcaUjpha virfjinica), a few, during October. 



Button-weed (Diodia teren), few, in October. 



Ground ivy {Xepeia (/Ivchoma), few, October. 



Red clover (TrifoliUm pmteme), small colonies on leaves, August to October. 



Indian strawberry {Fratjaria indica), numerous on underside of leaves, November 

 and December. 



Mallow (Malra rotiindifoUa) , few, October. 



Cultivated strawberry (Fragaria), September until March or later; frequently 

 very numerous on underside of leaves, petioles and between the folds of young 

 leaves; with them was found a winter'egg in January, deposited in the angle formed 

 by the midrib, and a vein on the underside of a leaf. 



Dwarf bean {Phaseohis nanus), (luite common during October. 



Spinach {Sjj'mncia oleracea), scattering on leaves in November. 



Hop {Humuhis liqiuliis), a few small colonies in July. 



Cotton (Gossi/pinm herbacenm), extremely numerous from August till the middle of 

 December, by which time they had killed all the leaves, flowers, and young bolls. 



Pear (Pi/rus communis), quite numerous on young leaves in June, causing them to 

 curl. Observed also a large colony on young leaves aud tender shoots of a potted 

 tree in the Insectary of the Department during November. 



European Dogwood {Cornus mas), very numerous during October and November, 

 curling the leaves. 



Orange {Citrus aurantium and other varieties), in the orange house of the Depart- 

 ment of Agriculture, very numerous on young leaves and shoots at almost any time 

 of the year. 



They were also found to be extremely numerous on many hot-house 

 plants, particularly so on Hydrangea and Begonia; considerable num- 

 bers were also observed upon the leaves of the Jamestown weed 

 {Datura stramonium) growing in the Insectary of the Department. 



It will be seen from these notes that this particular species is not 

 alone a very general feeder, but that it has also a very extensive dis- 

 tribution. 



DESCRIPTION OF THE SPECIES. 



Apterous viviparous female. — Length of the fully mature female, 1.6-1.8"""; greatest, 

 diameter across the abdomen, about 0.6™"'. Abdomen pyriform ; antonnte rather 

 short and slender, reaching to or beyond the middle of the abdomen. Nectaries 

 about twice the length of hind tarsi, conico-cylindrical. Rostrum rather stout, 

 reaching nearly to third coxte. A prominent conical and fleshy lateral tubei'cle may 

 be observed each side of the prothorax and behind the nectaries, and four smaller 

 ones each side of the abdomen in front of the nectaries. 



Color very variable, even in the same colony. The oldest females may be either 

 yellow or different shades of green to black, frequently marked with irregular 

 darker shadings; this variation in color is, however, often as pronounced in the 

 different younger stages. Eyes dark brown. Antenn;e whitish or pale yellowish 

 with the apex of the sixth aud the last joint black, legs Avhite or pale yellowish; 

 the coxa', apex of tibia', and the tarsi, dusky or black. Nectaries black ; tail greenish 

 or dusky. All are covered with a very delicate, more or less observable, jiruinose 

 excretion. 



Pupa. — Color also quite variable, varying in different individuals from dark green 

 to orange or reddish-brown, though in some cases they are of a beautiful, pale, 

 bluish-gray. Head and prothorax dusky; the meso- and metathorax either 

 whitish, yellowish, or glaucous green, frequently marked with two faintly dusky 

 medio-dorsal stripes. Wingpads and nectaries black ; the rest as in the apterous 



