58 INDEX TO MISSOURI ENTOMOLOGICAL REPORTS. 



(ETA COMPTA, Clem. (Rep. I, p. 151) Notwithstanding Mr. Grrote doubts the identity 



of this insect with Cramer's Phtilwna puncteUa, there is no question in my mind about it, 

 and I entirely agree with Zeller, who makes also the Tinea pustuleUa Fabr. a synonym 

 {Beitr. z. Kenntu. N. A. Nachfalter II. p. 23). It was first described in this country in 

 1856 by Fitch as Deiopeia aurea (3rd Rep. Ins. N. Y., p. 163.) See also " Zygasnidse and 

 Bombycidfs of N. A." by R. H. Stretch, 1372, pp. 159 and 241. 



The egg of this insect is one of the most singular Lepidopterous eggs with which I 

 am familiar. I have found it numerously in the South in midsummer. It is 0.9 ram 

 long, soft and plastic so as to be variable in form ; but when laid (as it often is) on the 

 web which the young larviB make, where it takes on the more natural form, it is ovoid, 

 somewhat compressed, with frequently a median ridge and oue end narrowed and pro- 

 duced into a short neck. The color is cream-yellow and the delicate shell is corrugu- 

 late. It is laid singly and generally slightly attached by the broad side to the side of 

 the mid-rib of the tenderest leaves, and its contact (by virtue, doubtless, of some 

 poisonous liquid with which it is laid) causes a well defined swelling of the leaf- vein. 



The species is placed among the Zyywnidce in Grote and Robinson's List, and has 

 evidently more affinities therewith than with the Temidce. 



PRONUBA YUCCASELLARiley (Rep. V, p. 150 and subsequently) For further facts re- 

 garding this species, see my papers in Trans. St. Louis Ac. Sc. Ill, p. 568 ; American En- 

 tomologlstYLI, pp. 141, 182, 293, and also a paper read before the American Association for 

 the Advancement of Science at Boston, Aug., 1880, and to be published in the Pro- 

 ceedings of the Association for that year. 



PTEROPHORUS PERISCELIDACTYLUS (Rep. Ill, p. 65) This belongs to the genus 



Oxyptilns, Zeller. 



HETEROPTERA. 



ARMA SPIXOSA Dallas (Rep. II, p. 113 and subsequently) Now referred to Stal's 

 genus Podisus. 



EUSCHISTUS PUNCTIPES, Say (Rep. IV, p. 19 and subsequently.) This is now known 

 .as Euschistns varlolarius Beauv., this last having priority over Say's name. 



COREUS TRISTIS, De Geer (Rep. I, p. 113 and subsequently) Belongs to Arnyot & 

 Serville's genus Anasa. 



MICROPUS LEUCOPTERUS, Say (Rep. II, p. 15 and subsequently) Now referred to 

 Burnieister's genus BUsstis. 



ANTHOCORIS INSIDIOSUS, Say (Rep. II, p. 27 and subsequently) Belongs to Fieber's 

 genus TripJileps. 



REDUVIUS RAPTATORIUS Say (Rep. I, p. 114) Belongs to Sinea, Arnyot & Serv., and 

 is synonymous with diadema Fabr. 



HARPACTOR CINCTUS Fabr. (Rep. I, p. 114 and subsequently) Belongs to Stal's 



genus Milyas. 



HOMOPTERA. 



CICADA SEPTEMDECIM (Rep. I, p. 18) This orthography, used in the Reports, is 

 grammatically correct, but I find that Linnaeus himself wrote septendecim (Systema 

 Naturae, Tom I, Pars II, 12th Ed. Stockholm 1767). Fitch used both forms of spelling, 

 but West-wood, Harris and most other authors follow Linnreus, and septendecim is, 

 therefore, preferable. As to whether the 17 and 13-year broods should be considered 

 specifically distinct, I am still of the opinion expressed in the First Report that the 

 insects should not be looked upon as distinct species, but that tredecim Riley should 

 rather be considered a race, or as Walsh (in a letter to Charles Darwin, which has kindly 

 been shown me by Mr. G. H. Darwin) puts it, an incipient species, to which, for conve- 

 nience, it is desirable to give a distinctive name. That it may be looked upon as a 

 good species by excellent authority, will be seen by Walsh's discussion of the subject 

 (American Entomologist II, p. 335) which I here quote: 



What candid entomologist, who has worked much upon any particular order, will 

 not allow that there are certain genera where it is often or almost or quite impossible 



