No. 406.] REVIEWS OF RECENT LITERATURE. 825 
The Aleurodide.— The insects so named constitute a family of 
Homoptera, allied to the Coccide, but having four wings in the 
adults of both sexes. Two genera are recognized, Aleurodes and 
Aleurodicus. We have before us the first attempt at a revision of 
the American members of this family, written by Professor A. L. 
Quaintance of the Georgia Experiment Station.’ All the species 
of North and South America, so far as yet recognized in the litera- 
ture, are enumerated, and many new species are described. Although 
the group is quite numerous in species, some of which are decidedly 
of economic importance, it has been strangely ignored in the past by 
American entomologists. Only the following species were described 
previous to 1880: Aleurodes phalenoides Blanchard, 1840 (not now 
recognized), 4. cocois Curtis, 1846 (now referred to Aleurodicus), 
A. abutilonea Haldeman, 1850, A. corni Haldeman, 1850, 4. 
asarumis Shimer, 1867 (now referred to Aleurodicus). At the 
present time Professor Quaintance is able to list forty-two species 
of Aleurodes and ten of Aleurodicus. All the species of the lat- 
ter genus are tropical or subtropical, except 4. asarumis from 
Mt. Carroll, Ill. This last is not now known to exist in collections, 
and is placed in Aleurodicus because Shimer says the central 
vein branches. It seems just possible to the writer that it is an 
Aleurodes, as some species of that genus appear to have the 
branching vein of Aleurodicus, owing to the presence of a decep- 
tive fold. Altogether the work is a very valuable and timely one, 
and it is to be hoped that it will further the study of the Aleurodidz, 
which it renders comparatively easy. It is, unfortunately, rather 
marred by numerous misprints. T. D. A. COCKERELL. 
Scientific Results of H. M. S. ‘ Thetis.’’*— The second part of 
the “Scientific Results of the Trawling Expedition of H. M. S. 
‘Thetis’ off the Coast of New South Wales” is devoted to the higher 
Crustacea, by Mr. Thomas Whitelegge, zoologist of the Australian 
useum. As evidence of the richness of the fauna about Port Jack- 
son, the author enumerates sixty-five species of invertebrates attached 
to or living upon a rock of about thirty pounds in weight, which was 
t Bulletin No. 8 (1900), Technical Series, Division of Entomology, Department 
of Agriculture, pp. 9-64. 
2 Scientific Results of the Trawling Expedition of Æ. M. S. Thetis off the Coas 
of New South Wales, etc., Pt. II. The Crustacea, Pt. i, by Thos. Apes a 
Mem. Australian Museum, vol. iv, pp. 135-199, Pls. XXXII-XXXV. Sydney, 
1900. 
