88 Thomas Albert Williams 



especially the tibiae. Honey tubes green to dusky. Tail shorter than in 

 apterous form, more slender and acute, green to slightly dusky. Length of 

 body 2.40 mm., to tip of wings about 4.50 mm., of honey tubes 0.60 mm. 



On Verbena stricta. Lincoln, October 16, 1888, at which time 

 only an apterous form was found. On Verbena sp. in green- 

 house, Lincoln, January 12, 1891. 



I am not sure that this is Thomas's species ; it differs in a few 

 points, but as he had only immature specimens his description is 

 not very complete, and that can account for all the differences. 

 The young apterous forms agree with his specimens. 



Specimens in the collection of the University of Nebraska (no. 

 156) and of the U. S. National Museum (no. 3.90). 



Genus Phorodon 

 115. Phorodon cynoglossi n. sp. 



Apterous viviparous female: Pale green, with tips of antennae, tarsi and 

 tips of honey tubes black. A median stripe of a reddish tinge. Eyes very 

 dark red. Front with short capitate hairs. Antennae on toothed tubercles 

 and with I gibbous on inner side. 



Pupa: As in apterous form, but with a band of dark green on each side 

 of the abdomen and with the posterior two thirds of the reddish median 

 stripe replaced by dark green (sometimes the median stripe is all green). 

 Tail short and conical and an irregular dark green band at base of each 

 wing-pad; wing-pads pale, with tips sometimes dusky. The margins of 

 the prothorax projecting out so as to appear almost as if with lateral 

 tubercles. 



Winged viviparous -female: Head, thorax and prothorax dark olive 

 brown. Head more or less pointed in front. Antennae with two basal 

 joints and tips brown, rest pale; III and VII subequal; III tuberculate; 

 all joints more or less annulated ; on distinctly toothed tubercles, and with 

 I gibbous. Neck green. Sides of thorax and wing insertions yellowish. 

 Wings delicate; veins slender but well defined; subcostal rather heavy. 

 Oblique veins all more or less curved ; cubitus with second branch nearer 

 the first than to the apex of the wing; in some specimens it is very much 

 nearer. Stigma dusky, long, very obtuse at inner end and acute at outer. 

 Stigmal vein heavy and very sharply curved for its entire length. Legs 

 pale to dusky, with blackish femoral and tibial tips and tarsi. Abdomen 

 greenish, with a double row of brown marginal spots, a large irregular, 

 subquadrate, dorsal spot of light olive brown and various irregular green- 

 ish or brownish markings over the dorsal surface. In some individuals 

 the reddish tinge on the anterior portion of the abdomen can be noticed 



172 



