Insecutor Inscitiae Menstruus 



Vol. V. JANUARY-MARCH, 1917 Nos. 1-3 



TWO BETH YLID PARASITES OF THE PINK BOLL 



WORM 



(Hymenoptera, Bethyliida:) 



By S. a. ROHWER 



In this paper, which is a contribution from the Branch of 

 Forest Insects, Bureau of Entomology, two Bethylid parasites 

 of the pink boll worm are discussed. One of them, which has 

 heretofore been considered as Parasierola celluJaris (Say), is 

 described as new. 



Perisierola nigrifemur (Ashmead). 



Goniosus nigrifemur Ashmead, Journ. Linn. Soc. Lond., vol. 25, 



1894, p. 195. 

 Parasierola nigrifemur Kieflfer, Genera Ins., fasc. 76, 1908, p. 14. 

 Perisierola nigrifemur Kiefifer, Das Tierr. Lief. 41, 1914, p. 539. 



A single female of this was received from E. C. Green, of 

 Brazil, with a note stating that it is parasitic on the larva of 

 the pink boll worm. Xs this species is but little known the fol- 

 lowing characters taken from the type will be useful : In 

 Kieffer's key in Das Tierreich will run to cellularis Say. Man- 

 dibles quadridentate ; scape subequal in length with the second 

 and third antennal joints ; second antennal joint one-third long- 

 er than its apical width ; third antennal joint with the apical 

 width slightly greater than the length ; third and fourth an- 

 tennal joints subequal, their length and apical width subequal ; 

 ocelli in a curved line, the interocellar line half as long as the 

 postocellar line. 



Perisierola emigrata, new species. 



Parasierola distinguinda Rohwer, Proc. U. S. Nat. Miis., vol. 41, 

 1912, p. 448. 



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