26 Insecta. 
XII. Insecta. 
[1911] 
Cockerell, T. D. A. Descriptions 
and records of bees. xl. Ann. Mag. 
Nat. Hist. London 8 1911 (763-770). 
[Hymenoptera.] 441 
Cockerell, T. D. A. Some bees 
from Western Canada. Ganad. Entom. 
London Can. 43 1911 (33 & 34). [Hy- 
menoptera .] 442 
Cockerell, T. D. A. Some new bees 
from flowers of Cactaceae. Canad. 
Entom. London Can. 43 1911 (131 & 
132). [ Hymenoptera .] 443 
Cockerell, T. D. A. A new psenid 
wasp. Canad. Entom. London Can. 
43 1911 (272). [ Hymenoptera .] 444 
Cockerell, T. D. A. Records of 
beos. Canad. Entom. London Can. 
43 1911 (389-391). [Hymenoptera.] 
445 
Cockerell, T. D. A. A new bee from 
New York state. Ent. News Phil- 
adelphia 22 1911 (18). [ Hymenoptera .] 
446 
Cockerell, T. D. A. A new Chaleidid 
from an oak gall. Ent. News Phil- 
adelphia 22 1911 (82). [ Ilymenoptera .] 
447 
Cockerell, T. D. A. A new Coccid 
on Ledum. Ent. News Philadelphia 22 
1911 (217). [ Coccidae ). 448 
Cockerell, T. D. A. An Aleyrodes 
on Euphorbia, and its parasite. Ent. 
News Philadelphia 22 1911 (462-464). 
449 
Cockerell, T. D. A. The humble- 
bees of Formosa. Entomologist 
London 44 1911 (100 & 101). [ Ilymeno- 
ptera .] 450 
Cockerell, T. D. A. A new genus of 
australian bees. Entomologist London 
44 1911 (140-142). [ Hymenoptera .] 
451 
Cockerell, T. D. A. Bees from the 
Himalaya mountains. Entomologist 
London 44 1911 (176 & 177). [ Hymeno- 
ptera .] 452 
Cockerell, T. D. A. Some Asiatic 
bees of the genus Anthophora. Ento- 
mologist London 44 1911 (233-237). 
[ Hymenoptera .] 453 
Cockerell, T. D. A. Some bees from 
Formosa. i. Entomologist London 
44 1911 (340-343). [ Hymenoptera .] 
454 
Cockerell, T. D. A. Fossil insects 
from Florissant, Colorado. New York 
Bull. Amer. Mus. Nat. Hist. 30 1911 
(71-82) pi. iii. 455 
Cockerell, T. D. A. New and little- 
known bees. Philadelphia Trans. Amer. 
Ent. Soc. 36 1910 (199-249). [Hymeno- 
ptera.] 456 
Cockerell, T. D. A. New and little- 
known bees. Philadelphia Trans. Amer. 
Ent. Soc. 37 1911 (217-241). [Hymeno- 
ptera]. 456a 
Cockerell, T. D. A. The Bees of tho 
Solomon Islands. Proe. Linn. Soc. 
N. S. Wales 36 1911 (160-178). [Hy- 
menoptera.] 457 
Cockerell, T. D. A. A list of the 
bees of the genus Pcrdita Smith. 
Psyche Boston 18 1911 (134-143). 
[Hymenoptera.] 458 
Cockerell, T. D. A. Bees in the 
collection of the United States National 
Museum. 1. Washington D.C. Smith- 
sonian Inst. Proc. U. S. Nation. Mus. 
39 1911 (635-658). [Hymenoptera.] 
459 
Cockerell, T. D. A. Bees in the 
collection of the United States National 
Museum. 2. Washington D.C. Smith- 
sonian Inst. Proc. U. S. Nation. Mus. 
40 1911 (241-264). [Hymenoptera.] 
459a 
Cockerell, T. D. A. Names applied 
to bees of the genus Nomada, found 
in North America. Washington D.C. 
Smithsonian Inst. Proc. U. S. Nation. 
Mus. 41 1911 (225-243). [Hymenoptera.] 
460 
Colledge, W. R. Notes on a brush- 
tongued mosquito. Brisbane Proc. 
R. Soc. Queensland 23 1911 (121-130) 
pi. iv. [Diptera.] 461 
Collin, J. E. A new fly of the genus 
Agromyza from Egypt. Bull. ent. 
Research London 2 1911 (79). [Di- 
ptera.] 462 
Collin, J. E. Additions and correc- 
tions to the british list of Muscidae 
Acalyptratae. Ent. Mo. Mag. London 
47 1911 (145-152). [Dipteral 463 
Collin, J. E. On Camus haemapterus 
Nitzsch ( Cenchridobia eggeri Schiner) 
and its systematic position among the 
Diptera. Novit. Zool. Tring 18 1911 
(138). 464 
Collinge, W. E. On the locomotion 
and length of life of the young of 
