230 THE CANADIAN ENTOMOLOGIST 



side; wings hyaline; R^^,- (third vein) with a group of two to five hairs both 

 above and below at the junction with R2+3. Tegulae white. 



Abdomen subshining; silvery pollinose on a black ground. Discal 

 macrochaetae present on the second, third and fourth abdominal segments; 

 median marginals present on the same segments. The hind margin of the 

 third tergum strongly arcuate. The fifth tergum pollinose and marked ofif from 

 the shining sixth tergum by a somewhat faint suture. The greatest length 

 of this segment is about one-fifth the lateral length of the fourth tergite. The 

 sixth and seventh abdominal segments forming somewhat distended genital 

 segments. Genitalia black. The basal part of the outer forceps is expanded 

 into a broad, leaf-like portion. The basal part of the inner forceps is equipped 

 with a short, median, keel-like projection, the two edges of which are almost 

 straight in profile. 



The horseshoe-like indenture extends very slightly more than halfway 

 to the base of the fifth sternite. 



Described from four males from Wellesley, Mass., (type locality) Mel- 

 rose Highlands, Mass.; North Saugus, Mass., and Fry Creek, B.C. 



One specimen bred from Hyplianfria cimca Drury. This species should 

 not be confused, however, with E. ainpclus Walk., which is a major parasite 

 of Hyphantria. 



Type number 24,353 in the U.S.N.M., Washington, D.C A paratype 

 from Fry Creek, B.C., in the Canadian National Collection, Ottawa. 



This species is named in honor of Mr. C W. Johnson, whose name is 

 inseparably associated with the Dipterology of the Atlantic seaboard. 



(To be Continued.) 



ON SOME CHILOPODS AND DIPLOPODS FROM KNOX CO- 

 TENNESSEE. 



BY RALPH V. CHAMBERUN, 

 Cambridge, Mass. 



The chilopods and diplopods here listed compose a collection made in 

 Knox Co., Tenn., during Jan. and Feb., 1921, by Mr. Geo. G. Ainslie, by whom 

 they were transmitted to the writer for study. 



Chilopoda. 

 1. Cryptops hyalinus (Say). 

 One specimen of this widespread southern form. 

 2. Otocrypfops scxsphwsus (Say). 

 One specimen. 



3. Linotacnia /wfoa (Sager). 

 One specimen. 



4. Sonibius rex (Bollman) 

 Lithobhis rex Bollman, Proc. U. S. Nat. Mus., 1888, 11, p. 350. 



One male of this species was taken at Elkmont, elevation 3,500 feet, on 

 Feb. 15. It was previously known only from the type, which is a female. 



DiPLOPODA. 



5. Platxdcsinus lecontei (Wood). 

 One specimen. 



