758 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [BuU. 



B. terricola Kirby. PI. x, Fig. 8 ; Howard, Insect Book, PI. 



ii. Figs. I and 5. 



Branford, 15 May, 1905 (H. W. W.) ; Colebrook, 21 July, 



1905 (H. L. v.). 



B. impatiens Harris. B. virginicus Fabricius. PI. x. Fig. 11. 



Occurs throughout the State from April to September. Bran- 

 ford^ New Haven, Putnam and Salisbury. 



*B. perplexus Cresson. 

 Branford, 29 July, 1905 (H. W. W.) ; Westville, 13 May, 

 1905 (W. E. B.). 

 °B. borealis Kirby. 



*B. bimaculatus Cresson. Howard, Insect Book, PI. ii, 

 Figs. 4 and 8. 



New Haven, 13, 27 June, 1902 (E. J. S. M.), 3 June, 20 July, 

 1904, II May, 1905 (W. E. B.) ; Branford, 8, 11, 29 M'ay, 1905 

 (H. W. W.) ; Southington, 11 July, 1904 (W. E. B.). 



Bombias Robertson. 

 This genus greatly resembles Bremus, from which it was 

 segregated in 1903. Two species are found in Connecticut. 



Key to Species. 



Females. 



Lateral ocellus nearly equidistant from eye and supra-orbital 

 line; front of thorax yellow; labrum with a transverse in- 

 terrupted ridge at base; third antennal joint as long as 

 fourth and fifth joints combined, fourth and fifth being 

 equal; vertex yellow or with two yellow lines or tufts; 

 scutel yellow or black, or mixed; first abdominal segment 

 in middle always black, hairs often extending over base of 

 second; second and third segments yellow; malar space 

 about as long as wide auricomus 



Lateral ocellus about twice as far from eye as from supra- 

 orbital line; thorax yellow, its disc mixed with black pubes- 

 cence; first dorsal abdominal segment and middle of basal 

 part of second yellow, sometimes inclining to reddish; 

 malar space shorter than wide separatus 



' Males. 



Ocelli located in narrowest part of front; malar space about 

 one-third as long as wide; third antennal joint equal in 

 length to fifth; pubescence of first dorsal abdominal seg- 



