182 INSECUTOR INSCITlyt MENSTRUUS 



with a green lustre ; ring joint subquadrate, first joint of funicle longer 

 than pedicel ; first three joints of funicle subequal in length, the following 

 successively decreasing in length ; pronotum purplish, the posterior margin 

 blue ; tuft of hair on dorsum of pronotum long (0.25 mm.), the hairs 

 numerous, dark brown ; middle lobe of mesonotum, except caudad, scu- 

 tellum, and inner margin of parapsldal areas bronzy, covered wath thimble- 

 like punctures ; apical portion of middle lobe smooth, polished, purple and 

 green ; pleurae longitudinally striate, purplish ; rudiments of wings very 

 small, inconspicuous; legs brown, basally with a slight purplish lustre, 

 coxae more purplish ; abdomen brown, with a purplish lustre, basally 

 green. 



Habitat: Keumuki, Oahu, Hawziiian Isleinds. 



Described from three females sent by Mr. O. H. Swezey with the 

 record " Probably parasitic on the Isosoma (In Johnson grass)." 



Type specimen : Cat. No. 1 9092, U. S. Nat. Mus. 



This species is easily recognized, in addition to other characters by 

 the excessive reduction of the wings and by the strong development of 

 the tuft on the pronotum. 



Geniocerus xanthopus (Nees) Ratz. 



This species appears to be very commonly reared from the pupae of 

 Dendrolimus pini. The collections of the Museum possess a series from 

 this host reared by Mr. K. Eckstein at Eberswalde, Germany. 



In DaJla Torre's cataJogue of Hymenoptera this species, which was 

 described in the genus Eulophus, is recorded under the genus Entedon. 



Dirhicnus alboannulatus (Ratzeburg). 



Pteromalus alboannulatus Ratz., Ichneum. d. Forstinsekt. Ill, 1852, 231. 

 The Museum has a series reared from the pupae of Panolis griseo- 

 variegata by Mr. K. Eckstein at Eberswalde, Germany. 



