10 Insecta. 
XII. Insecta. 
[1920] 
Alexander, C. P. A new species of 
Dixa from Argentina. Ent. News 
Philadelphia 31 1920 (294). [Diptera.] 
46 
Alexander, C. P. Records and 
descriptions of neotropical crane-flies 
(Tipulidae, Diptera) ii. J. New York 
Ent. Soc. 28 1920 (1-13). 47 
Alexander, C. P. Two undescribed 
Pediciino crane-flies from the United 
States. Canad. Entom. London Can. 
52 1920 (78 & 79). [ Diptera .] 48 
Alexander, C. P. New nearctic 
crane-flies. (Tipulidae, Diptera). 
Part ix. Canad. Entom. London Can. 
52 1920 (109-112). 49 
Alexander, C. P. New or little- 
known crane-flies from tropical America 
(Tipulidae, Diptera). Canad. Entom. 
London Can. 52 1920 (141-144). 50 
Alexander, C. P. Undescribed 
African crane-flies in the British 
Museum. (Tipulidae, Diptera). Canad. 
Entom. London Can. 52 1920 (145-160). 
51 
Alexander, C. P. New nearctic 
crane-flies. Part x. Canad. Entom. 
London Can. 52 1920 (224-229). 
[Diptera.~\ 52 
Alexander, C. P. Undescribed 
species in the Osten Sacken collection 
of New Zealand crane-flies ( Diptera , 
Tipulidae). Insec. Inscit. Washington 
8 1920 (121-133). 53 
Alexander, C. P. New species of 
Japanese crane-flies. Parti. ( Diptera , 
Tipulidae). Insec. inscit. Washington 
8 1920 (134-138). 54 
Alexander, C. P. and McAtee, W. L. 
Diptera of the superfamily Tipuloidea 
found in the district of Columbia. 
Proc. t U.S. Nat. Mus. Washington 58 
No. 2344 1920 (285-435) pi. xxvi. 55 
Alfieri, E. Sopra una specie pro- 
babilmento nuova di Afide gallecolo 
deH’olmo e sui suoi simbionti. Boll. 
Lab. Portici 14 1920 (18-32) pi. i. 
[Homoptera.] 56 
Alfken, J. D. Verzeichnis der Grab- 
und Sandwespen Nordwestdeutsch- 
lands. Abh. Ver. Bremen 23 1915 
(269-290). [Hymenoptera.] 57 
Alfken, J. D. Verzeichnis der 
Goldwespen (Chrysiden) Nordwest- 
deutschlands. Abh. Ver Bremen 23 
1915 (291-295). [ Hymenoptera .] 58 
Alfken, J. I). Verzeichnis der 
Faltenwespen (Vespiden) Nord- 
westdeutschlands. Abh. Ver. Bremen 
23 1915 (296-304). [Hymenoptera.] 59 
Alfken, J. D. Prosopis pfankuchi , 
eine neue deutsche Prosopis- Art. 
Abh. Ver. Bremen 24 1919 (269-270). 
[Hymenoptera.] 60 
Allard, H. A. The flight of fireflies 
and the flashing impulse. Science New 
York 52 1920 (539). [Coleoptera.] 61 
Altenburg, E. and Muller, H. J. 
The genetic basis of truncate wing — 
an inconstant and modifiable character 
in Drosophila. Genetics Princeton 
N. J. 5 1920 (1-59). [Diptera.] 62 
Altson, A. M. The life-history and 
habits of two parasites of blow-flies, 
with an introduction by Prof. H. 
Maxwell Lefroy, F.Z.S. Proc. Zool. 
Soc. London 1920 1920 (196-243). 
[Hymenoptera.] 63 
Andersen, L. Billefaunaen i Sender- 
jylland. Remarks on the Coleoptera of 
Sleswick with a catalogue of tho 
species hitherto found. Kebenhavn 
Ent. Medd. 13 1920 (108-114). 64 
Andres, A. i. Tenebrionidae [cf. 
Kneucker], Ent. Blatt. Berlin 16 1920 
(61-74). [Coleoptera.] 65 
Andrewes, II. E. Papers on oriental 
Carabidae. iv. Ann. Nat. Hist. ' 
London 5 1920 (445-455). [Coleoptera.] 
66 
Andrewes, H. E. Papers on oriental 
Carabidae. v. Holluonini. Ann. 
Nat. Hist. London 6 1920 (493-506). 
[Coleoptera.] 67 
Andrewes, H. E. Notes on oriental 
Carabidae. i. Ent. Mo. Mag. London 
56 1920 (235-240). [Coleoptera.] 68 
Andrewes, H. E. Notes sur les 
Carabiques oriontaux. i. Ann. Soc. 
ent. Belgique Bruxelles 60 1920 (22-28). 
[Coleoptera.] 69 
Andrewes, E. Notes sur les 
Carabiques orientaux. ii. Le genre 
Onathaphanus. Ann. Soc. ent. Belgique 
Bruxelles 60 1920 (106-111). [Coleo- 
ptera.] 70 
Andrews, H. W. Further notes from 
Palestine. Ent. Rec. London 32 1920 
(130-140). 71 
