THE CANADIAN ENTOMOLOGIST 343 



The anterior margin of the pronotum at each side bears three long, 

 backward-curving spines. Near the posterior margin there is a row 

 of eight shorter spines. There are also several very short spines 

 on the disk. On the dorsum of both the second and third thoracic 

 segments is a pair of spines. The dorsal side of each of the first seven 

 abdominal segments bears a transverse row of four spines (PI. XXI I, 

 fig. 4). The spines of the outer row are much longer and dark 

 brown at the tips. The ninth segment terminates in a pair of long, 

 large cerci nearly 3.5 mm. long. In the pupal chamber the pupa 

 normally rests venter downward, resting on the large curving spines 

 of the pronotum and the cerci. On turning over it rests on the 

 dorsal spines of the abdomen and thorax, so that the tender pupa 

 is never brought directly in contact with the soil. 



DESCRIPTIONS OF FOUR NEW TABANID^, WITH 

 REMARKS UPON CHRYSOPS CURSIM. 



BY C. P. WHITNEY, MTLFORD, N. H. 



Tabanus birdiei, n. sp. 



Female — Length 14-17 mm. Face white, densely covered 

 with white hairs. Palpi yellow, slender, sparsely clothed with 

 short hairs, extreme tip infuscated. Antennae: two basal joints 

 and base of third reddish yellow. Upper extremity of first joint 

 black and covered with short black hairs. Third joint with upper 

 angle rectangular or even obtuse, the joint beyond angle black. 

 Eyes naked, purple with two green bands. Front wide, parallel, 

 reddish brown, densely covered by white pollen and scattered 

 erect black hairs. Callus prominent, shining brown, nearly square 

 with a short, stout, tapering prolongation above. Thoracic dorsum 

 brown with strongly marked white lines. Abdomen brown and 

 white, the latter predominating and occupying the posterior 

 margins of the segments, expanding into three rows of triangular 

 spots. Venter yellowish, covered with white pollen. Legs tawny, 

 tips of tibiae and tarsi infuscated. Wings hyaline, large distinct 

 clouds on cross-veins, divarication of third vein and at extremity 

 of anal cell. First posterior cell somewhat coarctate. 



Nine females, March and April, West Palm Beach, Fla. 

 Named in remembrance of a young friend to whose kind assistance 

 I am indebted for many fine specimens of Tabanidae. 



October, 1914. 



