(6) 



olive tint. Subcostal vein of the fore wings parallel with the costal ; 

 the three discoidal veins about equidistant at their bases; stigma 

 fusiform, opaque, brown. 



Apterom female. Honey-tubes extending slightly beyond the tip of 

 the abdomen, black ; tail white ; legs yellow, except the joints, which 

 are dusky ; the femora are generally pale at the base. Antennae 

 about as long as the body, marked as in the pupa, except that the 

 light portions are clear white. Beak reaching nearly to the hind 

 coxae. 



Fupa. Oval, width about two-thirds the length ; length about .05 

 inch. Antennae. nearly as long as the body ; first and second joints 

 dusky, third and fourth bright yellow, apex dusky. Eyes black. 

 Wing-pads greenish at the base. 



Found on the heads of .Setaria glauca and Panicum crus-corvi, 

 Carbondale, Illinois, in August. 



It is possible that those found on Panicum belong to a different 

 species, as the wingless specimens are of a lighter color, and have a 

 distinct tubercle on the sides of the neck, which I failed to observe in 

 those on Setaria. If it should appear that these are specifically dis- 

 tinct, the species may be named !SipJtonophora panicola. 



8. Siphonophora eiaphorbiae, new sp. 



Notes in reference to color lost. If I remember rightly, it was green 

 or greenish, similar in color to the following species, but distinct. 



Antennae longer than the body, very slender ; the third and seventh 

 joints very long; a few regularly placed hairs on them. Honey- tubes 

 long and slender, reaching beyond the tip of the abdomen, nearly one- 

 third as long as the body, cylindrical. Tail very distinct, ensiform and 

 slender, about half the length of the honey-tubes. Subcostal vein of 

 the front wings diverging as it leaves the base, so as to leave the 

 widest space between it and the costal vein opposite the insertion of 

 the first discoidal vein, then approaching and joining it at the stigma. 



Found at Sioux City, Iowa, September 1st, on Euphorbia maculata. 



The specific name euphorhiae has already been used in Aphis, but 

 this being in a different genus, it will not create confusion. 



9. Siphonophora eiiphorbicola, new sp. 



Winged vivijjarous female. Antennae longer than the body ; 

 general color pale pea-green ; honey-tubes long, extending beyond the 

 tip of the abdomen, equal in length to about one-fourth of the body. 

 Head pale glaucous, the two lateral ocelli distinct ; eyes dark ; 

 antennae dusky, except the basal joints and base of the third joint, 

 which are pale. Thorax with a slight purplish tint ; prothorax green ; 

 abdomen pale green ; legs hyaline. Honey-tubes pale green at base, 

 dusky at the tips ; tail long, slender, sword-shaped, greenish. Veins 

 of the wings slender and very straight, except the stigmatic, which is 

 strongly curved. Beak reaches the hind coxae. Length to tip of 

 abdomen ,09 inch ; to tips of wings .15 inch. 



