THERATINJE. 



293 



Division PLATYSTERNALIJ1. 



Tlatysternal'uc , YV. Horn, Deutsche Ent. Zeitschr. 1905, p. 10. 



This division contains all the Cicikdeliile except the Cteno- 

 stomenvE and CoLLYRijS'jE, from which they are distinguished, as 

 before stated, by the broad, flat and smooth episterna of the meta- 

 sternum. Two subfamilies are represented in the Indian fauna, 

 the TheratintE and Cicindelin.e, which may be separated as 

 follows : — 



I. Outer lobe of the maxillary palpi obsolete and 



represented by a seta-like process Theratinae, p. 293. 



II. Outer lobe of the maxillary palpi normal . . Cicindelinae, p. 300. 



Subfamily THERATINiE. 



The single genus comprised in this subfamily may easily be 

 known by having the outer lobe of the maxillary palpi obsolete 

 and represented by a minute seta-like process. By some authors it 

 is included under the Collyriw^, to which it is in certain points 

 related, as, for instance, in the formation of the apex of the 



Fig. 133. — Maxilla (left to right) of Collyris, Tricondyla, Therates, Cicinclela. 



seventh ventral segment of the abdomen in the female, which 

 much resembles that of Co1lyris,its posterior margin being furnished 

 in the centre with two short processes similar to those which are 

 so characteristic of the last-named genus ; in some cases, however, 

 these appear to be much reduced. In general appearance the 

 species resemble the Cicikdelen^e much more than the Collyrin.e ; 

 from the former family, however, they are distinguished (apart 

 from the structure of the outer lobe of the maxillary palpi) by the 

 absence of a tooth in the centre of the emargination of the mentum, 

 and by having the tarsi almost alike in both sexes, the first two 

 joints being elongate and subcylindrical, the third much shorter 

 and slightly emarginate at apex, and the fourth very short and 

 heart-shaped ; the labrum is very large and long, and practically 

 covers the mandibles, the tips only being visible when at rest ; the 



