J22 ^' Ars^ne Girault: 



larger and wider than the proximal club Joint, which is also subquadrate 

 or subglobular; intermediate club Joint equal to the basal club Joint, 

 the third club. Joint conical, subequal in length to the preceding and 

 terminating in a stout seta or several setae combined. Antennae 

 clothed with scattered long hairs. 



From sixteen specimens, 2/3-inch objective, 1-inch optic, Bausch 

 and Lomb. 



Redescribed from seven m.ales and nine females received for 

 determination from Mr. R. L. Webster, Iowa State College of Agri- 

 culture and Mechanic Arts, Arnes, Iowa, mounted in baisam and on 

 tags and labelled as follows: 



Balsam mounts: 1. ,,From egg of Eriocampoides Umacina. 

 Exp. 84. July, 1909. R. L. Webster", 2 males, 1 females, 14 and 22 July 

 and 20 July respectively. 2. Same label. Exp. 89. 15 July, 1909. 

 1 male. 3. Same label. Exp. 60. 5 July, 1909, 1 male. 4. Same label. 

 Exp. 85. 10 July, 1909. 1 male. 5. Same label. Exp. 62. 28 June, 1909. 

 1 male. 6. Same label. Exp. 78. 5 July, 1909. 1 female. 7. Same label. 

 Exp. 68, 10 July, 1909. 1 female. 8. ,,From cherry leaves infested with 

 Eriocampoides Umacina. Arnes, Iowa, 7 August, 1909. R. L. Webster". 

 1 female. 



Tag-mounts: 1. ,,From egg of Eriocampsoides Umacina.'''' 

 Exp. 81, 3 July, 1909. 1 female. 2. Same label. Exp. 186. 1909. 1 female. 

 3. Same label. Exp. 187, 20 August, 1909. 1 female. 4. Same label. 

 Exp. 188. 1909. 1 male. 5. Same label. Exp. 189. 1909. 2 females. 



In sending these specimens which were reared in Company with 

 Pentarthron minutum (Riley), Mr. Webster wrote: ,,The species was 

 solitary, only a single parasite to an egg." P. mimdum was the more 

 common of the two. 



In my personal collection I have found two females of this species 

 labelled ,,No. 84. From eggs of Seiandria cerasi Beck. A. A. Girault, 

 Coli." Reference to the number 84 in my notebook showed that 

 originally three females were reared June 10, 1905 from pear leaves 

 collected at Washington, D. C, and containing eggs of the Eriocam- 

 poides. At first the specimens were recorded there as having come 

 from the eggs of that host, but subsequently the record was changed 

 to read that the host was perhaps some minute lepidopterous leaf- 

 miner living in the leaves and unnoticed. It seems that a mistake 

 was made here and that the host was the Eriocampoides in its egg- 

 stage. 



H abitat. United States — Missouri (St. Louis); Iowa 

 (Ames); District of Columbia. 



2. Closterocerits trifasciains Westwood. 



I have a single female specimen of this species recorded as having 

 been reared as a secondary parasite of Tischeria maUfoUella Clemens, 

 the host on apple leaves collected in the District of Columbia. The 

 parasite emerged August 7, 1905. This European species, thus, is 

 probably common in the United States. The specimen bears the 

 characteristic three stripes of black across the fore wings; its body is 



i 



