132 Journal New York Entomological Society. [Voi. x 



extensive swamps, heavily timbered with gigantic oaks, hickory, 

 beech, maple, elm, ironwood, magnolia, poplar, sycamore, sweet 

 gum, tupelo, sassafras, and, in the wetter portions, cypress. The 

 species collected at Vowell's Mill are : 



I. 

 Tetracha Carolina and T. virginica. 



Only a few specimens have so far been collected, and these were 

 found running about in the hot midday sunshine of August in an old 

 field grown up with grass and weeds, or running along the rows of 

 cotton. They run rapidly, like z..Carabus or Cicindela. 



Cicindela unicolor. 



This species begins to appear about February lo and is abundant 

 through March, April and May. It is not found during the summer 

 months, but appears again in August and September. Mr. Coverdale 

 is of the opinion that this so-called " fall brood " is all gone by the 

 end of September. It is found only on white sand. The numerous 

 specimens collected vary in the shade of color, but are all conspicuously 

 green and unspotted. So far, at least, no specimen has been seen 

 which had any of the spots of ri/i^ifrons. Compared with specimens 

 from other localities these Louisiana specimens are more evidently 

 punctate. 



Cicindela sexguttata. 



This species appears in March and is abundant during April and 

 May and a few specimens are also found in June. It does not appear 

 at all during the fall. Mr. Coverdale is quite positive on this point 

 and speaks of this species as "single-brooded." It occurred espe- 

 cially on a woodland path, cut three years ago, and on the public high- 

 way near by, which has been cut since the war, or about forty years 

 ago. This species is especially variable in I^ouisiana in coloring and 

 in maculation. The color varies from bright brassy green to a pure 

 grass-green, and the legs are often blue rather than green. Bluish 

 reflections on the elytra are less common than in northern specimens. 

 The maculation varies from the immaculate form, sometimes errone- 

 ously (?) called violacea to a single spot at apex, or a single spot on the 

 disk (probably the 7'ar/'a?is of Ljungh), and so on to two, three or 

 four spots on each elytron. The instability of this race of sexgiitlata is 

 interesting in connection with the recent origin of its home and sug- 



