220 ENTOMOLOGICAL NEWS. [May, 'lO 



These two allied genera are to be regarded as connecting 

 the Horiines (through the Zonitis group) with the rest of the 

 Lyttidae. 



To sum up in a word what has been said regarding the vari- 

 ous genera, the family Lyttidae contains two chief and fairly 

 homogenous divisions which are related to each other princi- 

 pally through the Sitaris and Meloe groups of genera. 



On the ground of the foregoing and many other considera- 

 tions I am dividing the blister beetles into two sub-families 

 which I separate as follows : 



Fam. LYTTIDAE (Cantharidae s. Meloidae Auctt.) 



A. Pseudochrysalis not confined in exuvia of preceding larval 

 instar, $ genitalia disposed vertically or obliquely in 

 abdomen Lyttinae nov. 



AA. Pseudochrysalis confined in exuvia of preceding larval instar, 

 $ genitalia disposed horizontally in abdomen, 



Zonitinae Ganglb. 



Under these sub-families six tribes should be recognized as 

 follows : 



Subfam. Lyttinae nov. 

 A. Wings present, elytra normal. 



a. Antennae usually clavate, mandibles often dissimilar, 



Mylabrini nov. 



aa. Antennae never clavate, mandibles similar Lyttini Lee. 



AA. Wings absent at least in $, elytra usually dehiscent, some- 

 times imbricate Meloini Esch. s. str. 



Subfam. Zonitinae Ganglb. 

 A. Labrum distinct. 



a. Elytra reduced or dehiscent, maxillary lobes normal, 



Sitarini nov. 

 aa. Elytra normal, maxillary lobes sometimes greatly produced, 



Zonitini Esch. s. str. 

 AA. Labrum small, sometimes hardly visible. .--. .Horiini Lee. 



In conclusion I give my grouping of the genera known to 

 me, which is as yet tentative in some parts, and on which I 

 especially invite criticisms and suggestions. 



