THE CANADIAN ENTOMOLOGIST. 109 



Cicindela veiiiista, Lee. — Dry sandy fields and small blow-outs in 

 which there is some vegetation are the favourite habitations of veniista. 

 This species is sometimes found in company with Manitoba in Manitoba 

 locahties, but Manitoba is seldom found in the favourite hunting-ground 

 of vennsta. Venusta is a strong tiier, though not quite as strong as 

 Afanitoba. It is among our most common species, and is found through- 

 out the season. The old brood begins to disappear about the middle of July, 

 and the new appears early in August. The old brood overlaps the new 

 to a small extent. Small open places with a slope facing south are the 

 spots most frequently selected for hibernation ; burrows are also found 

 among vegetation on the edges of drifting sand. The average depth of 49 

 specimens dug out was 19)-^ inches, the deepest 32 inches and the 

 shallowest 12 inches. In soft sand about 22 inches is the average depth. 



I believe the larva' hibernate at greater deptii than the beetles, but 

 exact data are lacking owing to the similarity of some of the species. 



Ciciftdt'/a iiinbata, Say. — One of llie most abundant of our tiger- 

 beetles, abounds on large sandy blow-outs where the vegetation is scanty. 

 It is sometimes found on very small patches of drifting soil, but is always 

 much more plentiful on white sand that is constantly drifting. After high 

 winds they are sometimes found in large numbers in hollows or among 

 grass on the opposite side from which the wind has been blowing. They 

 are found copulating from early in June to quite late in July, often partly 

 buried in the sand. Towards the end of July a great many die off, but 

 some remain in activity until after the new brood has made its appearance 

 during the first and second week of August, specimens of the old brood 

 being at once recognized by the hardness of the elytra, which are also 

 often partly discoloured in old specimens, while in the new they are soft, 

 and make poor cabinet specimens for two weeks or more after they a])pear, 

 but in this they differ little from other species. 



Towards the end of August a few begin to dig out their winter homes, 

 especially on small blow-outs where the ground is dark. By the tenth of 

 September most of the specimens are at work in the above localities, but 

 on white sand they remain tolerably numerous until the last of the month. 

 In 1906 all had disappeared by the 6th of October. 



The places chosen for hibernation are at the edges of blow-outs, 

 though, as a rule, in the soft sand. Slopes that are facing the sun at mid- 

 day are much preferred. The holes average 1 1 inches from the entrance. 

 The deenesi measured was 17 inches, and the shallowest 7 inches. 



