SARCOPHAGA AND ALLIES 173 



arm extending nearly straight forward. Between 

 these arms two upright similar slender processes arise 

 from the central portion of the segment, longer than 

 the apical processes first mentioned. The arrange- 

 ment of these five processes is highly characteristic of 

 the species in all of its variations. The front part of 

 the segment is bomided by two overlapping plates 

 which originate from the lateral expanded sides of 

 the segment, so that two erect processes seem to come 

 out of a deep cavity. The fifth sternite appears to be 

 variable, as in one of the specimens it shows a rather 

 wide excision lined with strong spines which meet 

 each other from the two sides, while in the other speci- 

 men the fourth tergite comes together over this or- 

 gan, entirely concealing it and bearing along its ap- 

 proximated borders a keel-like, dense series of erect 

 black bristles. 



Legs black; middle femur with two series of 

 stout spines below, the posterior of which are some- 

 what comb-like; middle tibia with a single bristle on 

 the outer front side and sometimes an added small 

 one; hind tibia with very long and very dense villos- 

 ity spreading both ways. 



Wings subhyaline, no costal spines; third costal 

 segment much longer than the fifth; first vein bare; 

 third hairy two-thirds of the way to crossvein. 



Length 8 mm. 



Four males. One from Gypsy Moth Labora- 

 tory, IVo. 3338- S ; one from Juliaetta, Idaho, collect- 

 ed by the author; one from Oahu, Hawaii (H. H. 

 Severin) ; one male Nadi, Fiji Islands (Prof. J. F. 

 Illingworth ) . Referring to the first, in a letter dated 

 Feb. 8, 1916, Mr. A. F. Burgess says, "All the speci- 

 mens under this number were reared from puparia 

 received from Germany with an importation of Gyp- 

 sy Moth caterpillars." I am indebted to Mr. Parker 

 for the determination of the variety. It was origin- 

 ally described from European material, and belongs 

 to one of the most widespread variable species known. 



Type. — In the Pandelle collection in Paris. 



