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Annals Entomological Society of America [Vol. X, 



radius ending in the sector. In the case of Plecophlebus it is 

 not certain that the apparent end of the radius is not a cross 

 vein, the last branch to costa being the true end of the vein. 

 Unfortunately the head oi Plecophlebus is lost, and the fragments 

 of legs and other parts appear to present no salient characters. 

 Provisionally the genus is referred to the Odontoceridae, but 

 Dr. Banks notes also a certain resemblance to the Oestropsy- 

 chids.'^. The character of the venation of the costoapical field 

 will in any case distinguish it from previously known forms. 



Fig. 7. Plecophlebus ncbulosus. Anterior wing. 

 Fig. 8. Liburnia burmitina. Elytron. 

 Fig. 9. Liburnia burmitina. 

 Fig. 10. Hodotermes tristis. 



