284 THE ENTOMOLOGIST. 



42. Pekkins, R. C. L. : " Ditto, pt. 8, Encyrtidae, Eulophidfe, 



Trichogrammidse." Oj). cit., 239-67, plates xviii.-xx. (Jan. 

 6th, 1906) [Hymenoptera] . 



43. KiRKALDY, G. W. : "Ditto, pt. 9, Leaf-hoppers." Op. cit., 

 269-479, plates xxi.-xxxii. (Feb. 3rd, 1906) [Hemiptera]. 



44. Perkins, R. C. L. : " Ditto, pt. 10, Dryinidae, Pipunculidse, 



Supplementary." Op. cit., 481-99, plates xxxiii.-xxxviii. 

 (March 1st, 1906) [Hymenoptera, Diptera]. 



45. KiRKALDY, G. W. : " Ditto, Index, Errata," &c. Op. cit., 

 501-8, and 2 pp. (May 1st, 1906). 



46. Friederichs, K. : " Zur Biologie der Embiiden . . ." Mt. 



Zool. Mus. Berlin, iii. 213-39, text-figs. 1-19 (April, 1906) 

 [Neuroptera.] 



47. Buttel-Reepen, H. von: " Apistica. Beitrage zur Syste- 

 matik, Biologie, sowie zur Geschichtlichen und Geogra- 

 phischen Verbreitung der Honigbiene (Ajns melUfica, L.) 

 ihrer Varietaten und der librigen Apis-Arten." Op. cit., 

 117-201, text-figs. 1-8 (April, 1906) [Hymenoptera]. 



48. Holmgren, N. : " Studien liber Siidamerikanische Ter- 

 miten." Zool. Jahrb., Abt. Syst., xxxiii. 521-676 [Neuro- 

 ptera] . 



49. Perkins, R. C. L. : " Entomological and other Notes on a 

 Trip to Australia." Proc. Hawaiian Ent. Soc. i. 8-11 (April 

 3rd, 1906). 



50. Id. : " Notes on a Collection of Butterflies made during a 

 Recent Trip to Australia." Op. cit., 23-5 [Lepidoptera]. 



51. Van Dine, D. L. : "Notes on a Comparative Anatomical 



Study of the Mouth-Parts of Adult Saw-Flies." Op. cit., 

 19-22, plates 1-2 [Hymenoptera]. 



52. OsBURN, R. C. : " Observations and Experiments on Dragon- 

 flies in Brackish Water." Amer. Nat. xl. 395-9 (June, 1906) 



[NeuropteraJ . 



53. Jackson, C. F. : " Key to the Families and Genera of the 

 Order Thysanura." Ohio Nat. vi. 545-9 (June, 1906). 



54. Distant, W. L. : "A Synonymic Catalogue of Homoptera. 

 Part 1. Cicadidse." (London, British Museum), 1-207. 



55. Pawlowsky, E. : " tJber den Stech- und Saugapparat der 

 Pediculiden." Zeitschr. Wiss. Insektenbiol., ii. 156-62, 

 figs. 1-4 (June 18th), and 198-204, figs. 5-13 (July 10th, 

 1906). 



56. Doflein, F. : " Ostasienfahrt. Erlebnisse und Beobach- 

 tungen eines Naturforschers in China, Japan, und Ceylon." 

 (Leipzig), i-xiii and 1-512, 18 plates, 5 maps, and numerous 

 text-figures (1906). 



57. Girault, a. a.: " The Present Status of the Bedbug in the 

 Transmission of Human Diseases." Journ. Amer. Med. 

 Ass. xlvii. 85-7 (July 14th, 1906) [also sep. 1-8]. 



