73 CONTENTS OF EACH VOLUME. 
Of the twenty-six coloured plates issued in the present volume, one only (pl. xxvi.) 
is devoted to the Bruchides. . 
Two papers on the Longicornia, subsequently received from our collectors after 
Vol. V. was finished, have been published, entitled: ‘¢ Additions to the Longicornia of 
Mexico and Central America”: one by Mr. Bates (Trans. Ent. Soc. Lond. 1892, 
pp. 143-183, pls. v.—vii.); the other by Mr. Gahan (loc. cit. pp. 255-274, pl. xil.). 
These additions bring the total number of species of Central American Longicornia 
to 1372. 
29, 30, Cornoptera. Vol. VI. part 1, and Supplement: by M. Jacoby: Phytophaga 
(part). 
The enumeration of the Phytophagous Coleoptera was commenced in 1880, before 
the Sallé collection had been acquired by the Editors and shortly atter Mr. Champion 
had started on his journey to Central America. ‘The coilections made by him, and 
by Hage in various parts of Mexico, increased our material so largely that a Supple- 
mentary Volume was added. Hence, two bulky Volumes, together including over 1000 
pages of text and forty-three plates, were required for the account of the Families 
Sagride, Donaciide, Crioceride, Megalopodide, Clythride, Cryptocephalide, Chlamy- 
didz, Lamprosomide, Eumolpide, Chrysomelide, and Galerucide. The Hispide 
and Cassidide are described in Vol. VI. part 2. In the general Introduction to the 
two Volumes (Part 1 and the Supplement), published in 1892, the relative number 
of species for each family is shown ina Table, and the number of species of the 
larger genera (Diabrotica alone possessing 178, 116 of which are described as new, 
and Lema 129, with 73 new) is also noted. At the end of this Introduction, a 
systematic list of the whole of the species figured is given on pp. ix-xix. The Phyto- 
phaga are perhaps more in evidence, except in the denser forest districts, than any of 
the other families of Coleoptera in Tropical America, many of the species occurring 
in great abundance on the herbage in open places at the commencement of the rainy 
season. Some of them, like Ovina in Europe, are extremely variable in colour, so that, 
as the author observes, nothing can be done by the systematic worker but to treat as 
distinct such forms as in his opinion differ sufficiently from their allies. Of the 2166 
species enumerated (in 1892) only about 90 are known from north of the Mexican 
boundary and about 150 from south of Panama: Central America is thus shown to 
have an exceedingly rich and peculiar Phytophagous fauna, of which the affinities are 
much greater with South than with North America. Since the publication of these two 
volumes, very little has been added to the Central American list beyond a few forms 
described by Mr. Bowditch; Mr. Gahan’s papers on TRabrotica dealt with South 
American species only. | 
About 1000 species are figured on the forty-three coloured plates. 
