18 Ins. 
XIII. INSECTA. 
255. [Cockerell, T. D. A.] A new sawfly of the genus Xyela. T. c. p. 194. 
[ Hymenoptera,. ] 
256. -. Some gall insects. T. c. pp. 183, 184. [ Hymenoptera , 
Dipteral] 
257. -. A new plant-louse from Southern California. Bull. S. 
Calif. Ac. i, p. 40. [Aphidce.\ 
258. -. The classification of the Aleyrodidce. P. Ac. Philad. liv, 
pp. 279-283, pi. xv. 
259. -. New genera and species of Coccidce , with notes on known 
species. Ann. Nat. Hist. (7) ix, pp. 20-26. 
260. -. A contribution to the knowledge of the Coccidce. T. c. 
pp. 450-456. 
261. -. Some Coccidce from Mexico. Op. cit. x, pp. 465-472. 
262. -. A new genus of South African Coccidce. Entomologist 1902, 
p. 15. 
263. -. South African Coccidce. n. T. c. pp. 111-114. 
264. -. A contribution to the classification of the Coccidce. T. c. 
pp. 232, 233, 257-260. 
265. -. Note sur le genre Hemichionaspis et description d’une espkce 
nouvelle. Bull. Soc. ent. France 1902, pp. 81, 82. [ Coccidce .] 
266. -. A new scale-insect on Agave. Bol. Com. parasit. Agric. 
Mexico i, pp. 339-343. [ Coccidce .] 
267. -. A new scale-insect on Agave. Mem. Soc. Ant. Alzate xvii, 
143. [Coccidce.] 
268. -. New Coccidce from the Argentine Republic and Paraguay. 
Canad. Ent. xxxiv, pp. 88-93. 
269. -. A new gall-making Coccid. T. c. p. 75. 
270. -. Two new mealy-bugs from New Mexico. T. c. pp. 315, 316. 
\Coccidce.\ 
271. -. A new Aspidiotus from Pinus sylvestris. Ohio Natural, ii, 
p. 287. \Coccidce.\ 
272. - & Atkins, E. Contributions from the New Mexico biological 
station, xn. On some genera of bees. Ann. Nat. Hist. (7) ix, 
pp. 230-234. [ Hymenoptera .] 
273. -& ——. Contributions from the New Mexico biological station. 
xiii. On the bees of the family Nomadidce of Ashmead. Op. cit. x, 
pp. 40-46. [Hymenoptera.] 
274. Coleman, G. A. The redwood mealy bug ( Dactylopius sequoice 
sp. nov.). P. Calif. Ac. (3) ii, pp. 409-420, pi. xxvii. [ Coccidce .] 
Recorded last year from a reprint by the Hopkins Lab. 
275. Colledge, W. R. Notes on a species of sandfly. P. Soc. Queens¬ 
land xvii, pp. 17-24, pis. i-iv. [ Diptera .] 
276. Collin, J. E. Note on Acletoxenus syrphoides. Ent. Mag. xxxviii, 
pp. 1-3 and 282, pi. i. [Diptera.] 
277. -. Four new species of Diptera (Fam. Borbondce) found in 
Britain. T. c. pp. 55-60. 
278. Comstock, J. H. & Kochi, C. The skeleton of the head of insects. 
Amer. Natural. 1902, pp, 13-45, 
