REPORT OF THE ENTOMOLOGIST. 221 



Notwithstanding their great numbers, they do not injure or disfigure the plant to 

 the same degree as other Aphides. At least this is the result of my observations thua 

 far. If not disturbed, they literally cover the whole plant, buds and all. They 

 seeiu thus far to confine themselves exclusively to the Japan lily, with but one excep- 

 tion. I have repeatedly examined all my other garden aud pot plants, both last sum- 

 mer and this, without detecting this aphis on any of them, except a few on the tulip. 



After watching them for a few weeks last summer I began their destruction ; but in 

 September they all suddenly disappeared without further effort from me. Whether 

 they will do so this year remains to be seen. During the winter a very few made 

 their appearance on a tulip in the green-house, but were immediately killed, and no 

 more were seen. 



In consequence of the cold and backward spring, they made their appearance quite 

 late this year (1879). At the time of writing (July 26) they cover the plants on which 

 they have not been disturbed; but, as was the case last year, they are confined ex- 

 clusively to the Japan lilies. I have traveled about not a little, but have failed to 

 discover this aphis, except in one place, which I can trace immediately to my own 

 plants, or, more strictly, to the same lot. Hence 1 conclude that it came from Japan 

 with the lilies or ijh& soil. 



Specimens were sent to Mr. Monell for identification. He considered 

 it to be a new species of the genus 8ipho7iophora, and forwarded the fol- 

 lowing specific description for insertion in this report : 



SiPHONOPHORA LILII (n. Sp ) 



General color yellow ; basal half of abdomen brownish red. Antennae mounted on 

 conspicuous tubercles. Style yellow, a little over half as long as the nectaries. Nec- 

 taries dusky, yellowish just at base, about four times as long as the tarsi. Venation 

 normal. Length 2""°. Alar expanse 7"™, On flowers of Lilium. 



The only other described Aphides on liliaceous plants are Aphis tulipae, Boyer de 

 Fonscolombe, 1841, and S. tulipae, Monell. 



It might be interesting to mention in this connection that on the allied family, the 

 Amaryllidaceae, there have been found Ehopalosiphum dianthi, Schr., Aphis vei'airi, and 

 Aphis papaveria. 



THE HAWTHOEJ^ TIKGIS. 



{Corythuca arcuata, Say, var.) 



Order Hemiptera ; family Tinged AB. 



Punctui-ing the under surfaces of the leaves of different species of Crataegus, giving 

 them a brown and sunburnt appearance, a small brown insect, with the hemelytra 

 carried horizontally, and formed of a nearly transparent membrane netted with 

 many stout veins; the immature forms spiny and wingless. 



Xhe leaves of the diSerent species of thorn on the department grounds 

 {Crataegus cordata, G. coccinea, G. tomentosaj G.crusgalli, G. parvi/olia) 

 toward the middle of the summer were observed to turn brown and 

 seared, as if burned by the sun. Upon examining the under surfaces 

 the explanation was readily seen in the large numbers of the bizarre 

 Tingides in all stages, with which the under side was fairly covered. 



The eggs of these insects, which, I think, have not been described, 

 are smooth, whitish, glistening, semi-transparent, and* ovoid in shape. 

 Their average length is 3""" (.01 inch). They are deposited on their 

 broad end, aud seem to be somewhat inserted into the substance of the 

 leaf; they are covered completely by a brown, sticky substance, which 

 hardens soon after oviposition. It adheres so firmly to the egg, espe- 

 cially to the upper portion, that it is impossible to remove it without 

 crushing the egg. At its upper end this covering of the egg is squarely 

 truncate, giving the whole mass the appearance of a frustum of a cone 

 with a porous lid. From the funnel-shaped summit the young insect 

 makes its exit, and the round hole at this point renders the emi)ty eggs 

 readily distinguishable from those still unhatched. The eggs are usually 

 laid, in groups of from ten to thirty, along both sides of some prominent 

 leaf vein. They bear a much greater resemblance to certain forms ot 



