ZENILLIA AND ALLIED GENERA SELLERS 93 



fourth vein a little rounded, hind cross vein curved, third vein usu- 

 ally with two bristles at base ; squamae white. 



Abdomen black, gray-pollinose, dorsum of first segment, narrow 

 apical margins of second and third, tip of fourth, and dorsal vitta 

 shining black ; gray pollen interrupted by irregular black areas that 

 shift when viewed in different lights; discal portions of second and 

 third segments bearing erect bristles that at times approach macro- 

 chaetae in size, often some of larger ones more or less regularly 

 placed, giving appearance of discal macrochaetae; first segment with 

 one pair, second with two pairs, and third with a marginal row of 

 macrochaetae; fourth segment covered with erect bristles about one- 

 half size of macrochaetae on third segment. 



Length 9 to 12 mm. 



Type locality. — Martin Falls, Albany River, Canada. 



Distribution. — Maine 2, New Hampshire 1, Vermont 1, Massachu- 

 setts 4, Rhode Island 1. 



Type. — Male, British Museum. 



Host. — Cimbex amerieana Leach 14. 



Remarks. — The foregoing description was based on an examination 

 of 14 reared specimens bearing Gypsy Moth Liboratory note numbers 

 including female type and female paratype (No. 10039 BIO) of 

 Zenillia coerulea Aldrich and Webber, U.S.N.M. No. 2574. 



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

 four; hibernation, in puparium. 



16. APLOMYA IMITATOR, new species 



Male (type). — Frontal row of 13 bristles, extending from on a level 

 with base of third antennal segment to 1 reclinate prevertical ; facial 

 ridge bristly on the lowest one-fourth ; gena one-fifth eye height ; para- 

 frontal smoky-gray pollinose; third segment of antenna one and 

 three-fourths times second (wider than in epicydes) ; arista thickened 

 on basal one-fifth, penultimate segment short. 



Thorax black, gray-pollinose; scutellum black; midtibia with three 

 median anterolateral bristles; hind tibia not ciliate; third vein of wing 

 with one bristle at base ; squamae white. 



Abdomen black, gray-pollinose; first segment shining black; discal 

 bristles on second and third segments, some approaching size of macro- 

 chaetae; first segment with a pair, second with two pairs, and third 

 with a row of marginal macrochaetae; fourth segment irregularly 

 bristly. 



Type locality. — Lillooet, British Columbia. 



Type.— Male, U.S.N.M. No. 54144. 



Remarks. — Description based on type male collected Mav 7. 1918, bv 

 A. B. Baird. 



