— 149 — 



its preparation, in consideration of the facility of study that it will afford, 

 and the incent've to its prosecution. 



We have the promise that a similar List of the Homoptera will fol- 

 low as soon as time can be found for its preparation. 



The chapter on Hemiptera, in the Standard Natural History recently 

 published by S. E, Casino & Co., of 92 pages royal octave, is also from 

 Mr. Uhler, and has been, I believe, generally received as advancing our 

 knowledge of an order which has been much neglected in this country. 



The Fourteenth Report on the Insects of Illinois, by Prof. S. A. 

 Forbes, State Entomologist, treats of several Hemipterous Insects, chiefly 

 in their economic relations. 



In the Report of the Entomologist of the U.S. Department of Agri- 

 culture for 18S5, Prof. Riley has presented a careful study of the two 

 broods of the Periodical Cicida, Cicada septendecim — the seventeen-year 

 (septendecim) and the thirte n-year race (tredecim), which appeared in 

 1885 over a large extent of the country, and came together in Southern 

 Illinois and Northern Georgia. There is also a summary of distribution 

 and future appearance of all the broods (22 in number) known to occui 

 in the United States: also a record of experiments made in transferring 

 die eggs of the Northern and Southern races of the insect from one por- 

 tion of the country to the other, as a test of the influence of climate upon 

 the developmental period. 



In the 14th Annual Report of the Geological and Natural Histon 

 Survey of Minnesota, Mr, O. W. Oesttund has contributed a List of the 

 Aphididce of Minnesota, in which seventy-one species are recorded, ol 

 which twenty-four species are described as new, and two new genera 

 named. 



Among other contributors to the order, are Mr. \Vm. Ashmead, 

 Prof E W. Claypole, and Mr. John J. Jack. 



In the NEUROPTERA, Dr. Hagen has contributed the European 

 literature of the Hemerbbius dipterus, of which twenty examples are in 

 collections in Europe, and four, so far as known taken in this country, 

 referring to this species Dr. Fitch's type of H. delicatulus (Entomologies 

 Americana, ii, p. 21). 



Mr. J. A. Moffat has narrated some habits of a Myrmeleon larva 

 (Canad. Entom., xviii, p. 76). 



Two elaborate papers from Dr. Hagen are additions of much im- 

 portance to the literature of the Pseudoneuroptera. The first is a Mono- 

 graph of the Earlier Stages of Odon ita, (in 43 pages) in which 48 spi 

 in the subfamily of Gomphina and Cordulegastrina are des< ribed ( brans. 

 Amer. Entomol. Soc. xii, pp. 249 — 291). The second is a Monograph 

 of the Emdidina, and is apparently one of the must careful and pains 

 Entomologica Americana. 21 Oct. & Nov. 1S86. 



