90 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



l\ mall (allotype). — Front at narrowest 0.30 head width; two rec- 

 linate preverticals; two pairs of fronto-orbital bristles; facial ridge 

 bristly on lowest one-third. Midtibia with one long, median, antero- 

 lateral bristle and one short one above it; pulvilli one-half length of 

 those of male. 



Length 7 mm. 



The paratype material varies from the type description as follows: 

 Reclinate preverticals varying from one to two ; gena from one-sixth to 

 one-fifth eye height. Scutellum usually black but three males with tip 

 yellow; only one male and all but two females having one long, median, 

 anterolateral bristle with a shorter one above it; third vein with 

 either one or two bristles at base. 



Length 6 to 9 mm. 



Type and allotype localities. — Moose River Plantation, Maine. 



Distribution. — Maine 5, Massachusetts 1. Recorded but not dupli- 

 cated above : Maine 9. Massachusetts 1. 



Type.— Male, U.S.N.M. No. 54147. 



Host. — Pheosia dimidiata (Herrieh-Schaeffer) 18; Alypia oeto- 

 maculata (Fabricius) 1. 



Remarks. — The material examined consisted of 19 reared specimens 

 bearing Gypsy Moth Laboratory note numbers. This included the 

 type, the allotype, and 3 male and 1 female paratype. No. 12198 Ml ; 

 1 male paratype, Alton, Maine, No. 12198 J3a; 1 male and 3 female 

 paratypes, Sandy Bay Plantation. Maine, No. 12198 N4; 2 male para- 

 types, West Forks, Maine, No. 12198 N8; 2 female paratypes, Lily 

 Bay. Maine, No. 12198 NIG. 



Adults, June and July; generations, one; number per host, one to 

 eight ; hibernation, in the puparium. 



20. APLOMYA FRONTO (Coquillett), new combination 



Erorista front o Coquhxett, U. S. Dept. Agr., Div. Ear., Bull. 7, p. 06, 1S97. 

 Zenillia fronto (Coquillett) Aldrich and Webber, Proc. U. S. Nat. Mus., vol. C3, 

 art. 17, p. 36, 1924.— Johnson, List of New England Diptera, 1925. 



Head with front in male and female about same, 0.32 head width; 

 row of seven or eight frontal bristles, extending from on a level with 

 a little below base of third antennal segment to two reclinate pre- 

 verticals; facial ridge bristly on the lowest two-fifths to one-half; 

 gena one-sixth eye height; parafrontal, face, and gena silvery-gray 

 pollinose; antenna black, third segment of male five and three-fourths 

 and of female four and one-fourth times the second; arista thickened 

 on basal one-third, penultimate segment short; palpus completely 

 yellow. 



Thorax black, gray-pollinose; marked by five mesonotal vittae; 

 type male lacking a pair of discal scutellar bristles; femora and 



