Pomona College Joubnal of Entomology 



507 



form, smootli and onc-fourtli tlie length of body. Femora without blades. Abdo- 

 men .smootli, liairless, .■ind as broad, just beliind the wings, as three-quarters the 

 length of the body. The wings project forward almost as far as rostrum, and are 

 rounded anteriorly. Wings are sculptured transversely. The legs bear rather long 

 bristles, several on each tarsus being feathered. Unguis tridactyle. Ixgs not 

 quite half the length of body. Under rotting boards, New Haven, Conn. This 

 species is distinguished from 0. alata Hermann, O. dorsaVis Koch and 0. rugi- 

 frons Stoll, by its large size and by its setaforni pseudostigmatic organ. 



Figure 164. Oribata latincisa var. gigantea 



