Vol. XXvi] EKTOMOLOGICAL NEWS. 



447 



Ibid. 1886. Cenno Monografico degli Odonati del Gnippo Ischnura. 

 L. e. xriH, pp. 259-258, Uv. ii-vi. 



Ibid. 1888. Contribute alio Studio delle Forme Lar>ali degli Odonati. 

 Cenm) Iconografico della Larve-Ninfe dei Caudobrandiiati. L. c. xx, 

 pp. 159-170, tar. i-ir. 



Rousseau, E. 1909. fitude Monographique des larves des Odonates 

 d'F.urope. Ann. Biol, lacustrr. iii. pp. 500-366, 47 text figs. 



St iiMiirr.SrHwaiT, E. 1891. Kerfe u. Kcrflarven d. sussen Wassers, 

 be»onder» dcr stehrndcn Gewisser. In Die Tier. u. Pflanzenwelt d. 

 Sus«was«cr< von Dr. Otto Zacharias. Bd. II. pp. 51-122. Leipzig. J. J. 

 Webrr. 



Shakp, D. 1895. Insects. The Cambridge Nattiral History, v, pp. 

 42a et seq. Loodoo and New York. Macmillan ft Co. 



SucKow. i8la8L Re^ration d. Insekten, insbesondere uber die 

 Darmresplrmtion der Aesehma gramdis. Zeitschr. organ. Physik. (Eisen- 

 ach), ii, pp. 24-49. tab. i-tv. 



Tiu.YA«i>. R. J. 1906. Life History of Ustft leda. Proc. Linn. Soc. 

 Sne South Watts, xxxi. pp. 401^423, 2 pis. 



Ian. 1909. Studies in the Life- Histories of Australian Odonata. II. 

 Life-History of iHphlfbia Itstoides. L. e. xxxiv, pp. 370-383, pi. 

 XXX iii. 



TvurwL, R. 1898-99. I9a& Die Geradfltigler Mitteleuropas. [Two 

 editions. 1st, Eisenach. Vcrlag von M. Wilckens; and, Gotha. F. Z. 

 Pertiici. I have used the and.) 



WttxiAMS. T. 1854. On the Mechanism of .\quatic Respiration and on 

 the Structure of the Organs of Breathing in Invertebrate Animals. 

 Ann. & Mag. Nat. Hist. (2) xiii, pp. 180-200, pis. ix-x. (Brief note 

 on degree of capillary subdivision** of the tracheae in branchiae 



of 4e, p. 196; his fig. 6^ pL ix appears, however, to be that of an 



Ephemerid lanra.] 



Orvn FATras crm. 



Ot^STAirr, E. 18691 Note sor la respiration chez les nymphes des 

 Libellules. Annates 4. Sc%*n<es NainreUts (5) Zool. xi, pp. 370-386, 

 pis. 10-12. 



Scott. C. G. 1905. The DistrtbatioA of Tracheae hi the nymph of 

 Platkfmis lydia. Biol. Bull (Wood's Hole) ix. pp. 341-354- 8 text- 

 figurcs. 



D wtiucti ye Orawboppara in Costa Rica (Orth.). 

 ScAor Anastasio Alfaro. Director of the Museo Nacional of Costa 

 Rica, has described the invasion of Costa Rica by locusts in the pres- 

 ent year in Rexista dc Education, San Josi. Oct.. 1915. The species 

 ooocemed. identified by Mr. J. A. O. Rchn. are ScWxsioccrca parancn- 

 sit and .9. sapoteea, the former prctlominating. The invaders entered 

 from the north in two columns, one along the Pacific lowlands, the 

 other .il Mti>: tl».i*c of the Atlantic. A detachment from the latter col- 

 umn cr.sscii the mountains by the Rio San Carlos and Zarccro into 

 the province of Alajuela. Previous locust years in Costa Rica were 

 1659* 1731, 1774. 1800, 1852 and 18761 



