184 ENTOMOLOGICAL SOCIETY 



species injures the grapevines at Los Angeles, Cal., but this 

 record probably refers only to the feeding habit of the imago. 



H. foliacea and punctipennis. There is undoubtedly some 

 confusion in the references to these closely allied species which 

 can be unraveled only by examination of the typical specimens. 

 The species injurious (both as larva and imago) to apple trees 

 in Kansas, Nebraska and Missouri, and variously referred to as 

 H. foliacea or punctipennis is in all probability punctipennis. 

 H. foliacea is stated by Dr. Horn to injure the grapevine. 

 Gaura parvifolia and other Onagracece (Popenoe) and Cucurbita 

 perennis (Cockerell) are given as wild food-plants oiH.folicacea, 

 but these records are probably also referable to H. punctpennis. 



Epitrix cucumeris. It is certainly strange that we do not yet 

 know the food-plant of the larva of this common species which 

 is so often referred to in economic literature, and which in the 

 imago state is almost omnivorous. Its true food-plant will no 

 doubt prove to be one of the Solanacese, and the larva is prob 

 ably a root-feeder. E. fuscula is" in the more southern States 

 just as common as cucumeris and has no doubt occasionally 

 been confounded therewith in the records. 



Phyllotreta albionica. The species mentioned under this 

 name as injuring cabbages in Colorado (C. V. Riley, Ann. 

 Rep. Comm. Agric., 1884, p. 308) is in all probability Ph.pusilla 

 which is much more abundant in that State than albionica. 

 Before the publication of Dr. Horn's Synopsis these two species 

 were not separated' in our collections. 



Prof. Riley remarked, in discussing this paper, that little 

 difficulty would be experienced in referring any species of 

 particularly economic importance to food-plant by comparison 

 with material in the National Collection. He was glad that 

 Mr. Schwarz had gone over the records in the light of Horn's 

 latest revision, but asked whether it was certain that Dr. Horn 

 is right in all the reference of species. 



Mr. Schwarz stated that Dr. Horn's work was of such an 

 excellent character that his determinations should be adhered 

 to. He stated also that the important species had often been 

 incorrectly referred, and that even in the case of such species 

 some of the records were open to doubt. The National Collec 

 tion would serve to verify Prof. Riley 's own writings, but not 

 those of others. 



