TITLES. 
Ins. 41 
618. Poulton, E. B. The Colours of Animals ; their Meaning and Use 
especially considered in the case of Insects. London : 1890, Inter- 
national scientific series, vol. lxviii. 
The contents of this volume have been in large part forestalled by 
papers that have appeared in various journals ; the most novel part is the 
discussion of variable protective resemblance. 
619. . The external morphology of the Lepidopterous Pupa: its 
relation to that of the other stages, and to the origin and history of 
metamorphosis. Parts i-iii. Tr. L. S. (2) v, pp. 187-212, pis. xx & 
. xxi. Parts iv & v, t. c. pp. 245-263, pis. xxvi & xxvii. 
620. Provancher, L. Petite Faune entomologique du Canada. Cin- 
quieme ordre, Les Hemipteres , pp. 295-354. 
Completing the volume. 
621. . Un naturaliste aux lies de la Madeleine. Nat. Canad. xix, 
pp. 189-248. \Hymenoptera.] 
622. . Des Insectes comme aliment. T. c. pp. 114-127, 
623. Puton, A. Une douzaine d’ Hemipteres nouveaux et notes diverses. 
Rev. d’Ent. ix, pp. 227-236. 
624. Quedenfeldt, G-. Eine neue Buprestide aus Qstafrika, B. Ej. Z. 
xxxv, p. 135. [ Coleoptera.\ 
625. , Eine neue Cetonide aus Ostafrika. T. c. p. 136. [ Coleoptera .] 
626. -. Diagnosen zwoier neuen TenebrionidenrAvten a,us Tripolita- 
nien. Ent. Nachr. xvi, pp. 63 & 64. [ Coleoptera.'] 
627. . Pelecium drakei , n. sp., aus der Coleopterenrl^Yibas der 
Stomiden. T. c. p. 302. 
628. Quedenfeldt, M. Aids schweinfurtlii , n. sp. B.E.Z. xxxv, p. 139. 
\_Coleoptera.] 
629. Radoszkowski, 0. Hymenopteres de Koree. Uor. Ent. Ross, xxiv, 
pp. 229-232. 
630. . Hymenopteres recoltes sur le mont Ararat. I. c. pp, 
502-510. 
631. Raffray, A. Etude sqr les Pselaphides. Rev. d’Ent. ix, pp. 1-28, 
&c., &c. [Coleoptera.] 
The number of species described has increased from 450 in the year 
1868 to upwards of 1800, and the genera to more than 250. These latter 
are tabulated, the morphology and distribution sketched, and a now 
classification proposed, 
632. . Voyage de M, E. Simon au Venezuela. Pselaphides. Ann. 
Soc. Ent. Fr. (6) x, pp. 297-330, pi. vi. [ Coleoptera .] 
633. . Description d’une nouvelle espece de Pselaphidce. Bull. Soo, 
Ent. Fr. 1890, p. cciv. [ Coleoptera .] 
