ffalticce.] PHYTOPHAGA. 333 



tarsi, or certain joints of the antennae dilated ; M. Allard remarks that 

 he believes that in all the species, without exception, the males have a 

 well-pronounced fovea on the posterior border of the List abdominal 

 segment. 



In the Munich catalogue published in 1876 one hundred and forty 

 genera and fourteen or fifteen hundred species are enumerated as belong- 

 ing to the tribe; in M. Duvivier's supplement, however, no less than 

 forty-one new genera and nearly eight hundred species have been added, 

 chiefly through the researches of Mr. Champion and the work of Mr. 

 Baly and Mr. Jacoby ; the members of the tribe appear to be widely 

 distributed throughout the world; they are represented in Europe by 

 about twenty-five genera and three hundred and seventy species, of which 

 no fewer than twenty genera and about one hundred and seventeen 

 species are found in Britain ; some of these are very closely allied and 

 require great care in their identification, and this to a certain extent is also 

 true of the genera ; the tables, therefore, given below must be regarded 

 rather as guides than as absolutely trustworthy, and must not be made 

 use of without the detailed descriptions ; I have not made much use of 

 the characters presented by the frontal tubercles and the under-side, as 

 they are, in many cases, not very obvious ; the same, however, may with 

 reason be said of many of the distinctions here employed, the basal trans- 

 Terse impressions of thorax, for instance, being sometimes more or less 

 obsolete; for more detailed information regarding the group the student 

 is referred to the Naturgesichte der Insecten Deutschlands, vol. vi. part 4, 

 p. 666, by Weise, especially to his tables on pp. 674 678, and also to 

 Allard's " Essai Monographique sur les Galerucites Anisopodes " (Ann. 

 Fr., Sept. 14, 1859) ; in many points I have preferred to follow Thomson 

 (Skand. Col. x. 252). 



I. Anterior coxal cavities open behind ; elytra rarely 

 punctate striate. (Sub-tribe Halticides, Thorns.) 

 i. Tarsi with the first joint very long, as long as half 

 the tibia, second joint attached to the first by a 



socket joint LONGITABSUS, Latr. 



ii. Tarsi with the first joint short or moderate, not 

 longer than one-third of the tibia, second joint not 

 attached to the first by a socket joint. 



1. Thorax with a more or less distinct transverse 

 impression before base, not bounded by a longi- 

 tudinal fold or impression H ALTICA, Geoff'. 



2. Thorax with an obsolete transverse impression 

 before base, bounded on each side by a short but 

 distinct fold or impressed line, which nearly 



touches the base HxBXJEOPHAOA, Fovdr. 



8. Thorax without transverse impression or longitu- 

 dinal fold. 

 A. Form more or leu elongate, not subgloboee, 



oral, oblong oval, or obovate. 

 a. Elytra confusedly punctured or with indis- 

 tiiH't rows of punctures at base, which become 

 confused towards apex ATUTIIOKA, deer. 



