454 PROCEEDINGS OF THE INDIANA ACADEMY OF SCIENCE. 



C: repanda are by far the most abundant of all lowland species, if not the 

 most numerous of all Indiana Cicindelidaj. They swarm the lake shores, 

 river banks, sand bars and deltas in Indiana from early spring until late fall 

 with the exception of a few weeks in Julj' and August. They are found not 

 only along the larger waterways but appear in great abundance in gravel 

 or sand pits or in any other natural or artificial depression, containing water 

 and surrounded by barren banks. They may be collected in almost any 

 number along small ditches through lowland pasture fields. 



Observations indicate that the C puuctulata are more numerous throughout 

 the state than all other upland species combined. This is a single brooded 

 species and does not appear until the latter part of July (perhaps earlier in 

 southern Indiana). They have a greater diversity of habitat than any of the 

 observed Cicindelidse. Although they were usuallj- found in fields among 

 the vegetation, they did not seem to object to a home in the woods, on slop- 

 ing grounds or even on wet sand bars. In fact they were seen scattered over 

 every collecting ground visited during their season. This does not corrob- 

 orate the observations of Criddle who suggests that the Manitoba C. punc- 

 lulata are confined to few spots where they are usually plentiful. 



C. sexgultala represents another single brooded species of the state. They 

 appear in early spring, are most abundant in ISIay and June and disappear 

 in early July. They may be found on barren spots in upland regions, but 

 they are especially fond of damp woodland paths and rocky rapines. This 

 species was found in great numbers in only one locality, Init single specimens 

 were distributed over wide areas. 



C vulgaris &nd C. ancocisconensis are both double brooded species, the 

 adults appearing in earh' spring and disappearing in late July about tliree 

 weeks before the imagoes are seen. Neither of lliese species is well distributed 

 but is found in localities where it is abundant. The former is more widely' 

 distributed and extends further south than the latter. They both might 

 be classed as upland species even though oncocisconerisis inhabits the banks 

 along running brooks, while vulgaris is found in dry daj^ fields and roadways. 



One mature female of C. generoHO Dej. a variety of Say's fornio.^o and a 

 few scutellaris were found in Pike county, August 15, 1915. 



C. purpurea Oliv. were seen only in southern Indiana. 



All immature Cicindelidse are very unsocial, even cannibalistic; and es- 

 pecially so when crowded in cages. 



Tiger beetles do not spend their time in barren spots as is usually supposed 

 but seek such places only upon approach of strangers. These beetles were 

 found to be in no way "tiger"-like in their attacks on larger and more active 

 prey. They, on the other hand, confine their food to small and helpless 

 specimens such as small ants, gnats, worms and larvae of various kinds. 



Since the Cicindelida; are entirely carnivorous, living upon insects, lar- 

 vae and the like, which are as a whole injurious to growing vegetation, their 

 economic value should receive greater recognition. 



