60 INDEX TO MISSOURI ENTOMOLOGICAL REPORTS. 



Rep. 3, p 95, and "Notes on Aphididse of the U. S. " (Hayden's Bull. U. S. Geol. & 

 Geogr. Surv. of Terr., Vol. V, p. 3). 



ASPIDIOTUS HARRISII Walsh (Rep. I, p. 7) This belongs to Costa's genus Di- 

 anpls, and is apparently the species named ostreccfonnis by Curtis (Gardener's Chron- 

 icle, 1843, p. 805). 



DIPTERA. 



TRUPANEA APIVORA Fitch (Rep. I, p. 163; II, 122) This has been renamed Pro- 

 ni'iehns Fitchil by Osten Sackeu (Cat. of the described Diptera of N. A. 2nd Ed., 1878, 

 p. 234), the species proving different from Sastardu Lrew, and Fitch's name being pre- 

 occupied. 



BEE-FLY LARVA (Rep. IX, p. 98) The undetermined larva here illustrated (Fig. 

 24) has^ since proved to be that of a Systocchus, a genus of Bombyliid flies. For further 

 details and determinations see the Second Report of the Commission (pp. 282-9). 



SARCOPHAGA. CARNARIA, L. (Rep. IX, p. 95) The variety sarraceniw of this species 

 there mentioned is now considered a good species, for reasons stated in Bulletin 3 of 

 the Commission (pp. 39, 40, note). 



EXORISTA LEUCAXE.E, Kirkpatrick (Rep. II, p. 50 and subsequently) Referred to 

 the genus Nemorwa Desv. by Osteu Sackeu (Catalogue, etc., 1878, p. 150). The variety 

 cecropia of this (Rep. IV, p. 103) is quoted by him as a distinct species under Exorista, 

 probably a mistake caused by my employing the wrong figure in the American Ento- 

 mologist, Vol. II, p. 101, where that of E. flavicauda is used for leucanice. 



LYDELLA DORYPHOR.E Riley (Rep. I, p. Ill) Now included in the genus Ejcorista. 



ORTHOPTERA. 



(ECANTHUS NIVEUS, De Geer (Rep. I, p. 138, audV, p. 120) This species is common in 

 all parts of the country, and I have proved, by breeding, that its eggs are those de- 

 scribed and figured as such in the 5th Report. I agree with Scudder in considering 

 fasciatns De Geer but a dark and rather well marked variety of it. Its chirp is inter- 

 mittent, resembling a shrill te-reat te-reat te-reat with a slight pause between each. The 

 eggs and punctures figured on page 119 of the 5th Report (Fig. 47) as probably those of 

 Orocharis saltator are, as I have since proved by breeding and by watching the process 

 of oviposition, those of a large species of (Ecantlrus, hitherto, I believe, very generally 

 confounded with niveus, and which is described below as (E. latipennis N. Sp. While 

 nivens punctures all kinds of soft stems and pithy twigs, latipennis seems to prefer the 

 more slender parts of the Grape-vine. The female, when she has sufficiently proceeded 

 in the act of ovipositing, is so intent that she can very well be watched at night by 

 the aid of a "bull's-eye." 



The jaws are first used to slightly tear the outer bark. With the antennte stretched 

 straight forward and the abdomen beut up so as to bring the ovipositor at right angles 

 with the cane, she then commences drilling, working the abdomen convulsively 

 up and down about twice each second. The eggs, as described iu the Report, are laid 

 lengthwise in the pith, but always in two sets, one each side of the hole. The number 

 varies according to the size of the cane, and the distance between the holes is also 

 Tariable but usually less than in my figure. The hole is usually filled up with a white 

 mucous secretion, though there is very little of it about the eggs. This secretion 

 also doubtless serves to facilitate the drilling. The same female will lay over 200 eggs, 

 and will sometimes puncture the same cane at intervals of inch for 14 feet or more. 



The shrill of latipennis is continuous and recalls the trilling of a high-pitched dog- 

 whistle in the distance. The key varies, however, and is sometimes much less high 

 and more musical than at others. The commingled shrill of this species recalls also 

 the distant croaking of frogs in spring. The broad wings are thoroughly elevated 

 during the act or even bent forward, and the vibration is so rapid that there appears- 



