TAXONOMY OF MUSCOIDEAN FUFS— TOWNSKXI) 99 



tion of A. schizurce Townsend except as follows: The facial plate 

 shows no appreciable tinge of golden, fourth vein is quite abruptly 

 bent, first abdominal segment has one lateral marginal macrochaeta, 

 second segment has a lateral marginal pair of macrochaetae, pulvilli 

 are smoky blackish, and size is larger. 



Genus Zygobothria Mik. 

 Zygobothria nidicola, sp. nov. 



Male. — Fifteen specimens. Thirteen bred at the Gipsy Moth 

 Parasite Laboratory, North Saugus, Massachusetts, as follows : 

 Four bred by E. S. G. Titus, in 1906, from Buproctis chrysorrhoea 

 imported from Germany (Erfurt, Munich, and Fuhlsdorf, received 

 from Marie Ruhl) ; nine bred by W. F. Fiske, in 1907, from hiber- 

 nated larvae of Buproctis chrysorrhoea from imported nests received 

 from Vienna and other parts of Nieder-Oesterreich, and from sum- 

 mer importations of larvae of same species from South Tirol and 

 Carniola. Two bred at Simferopol, Russia, by S. Mokschetsky, 

 from Buproctis chrysorrhoea, June 7, 1905, and July, 1907. 



Length, 7 to 9 mm. Eyes very faintly hairy, appearing bare. 

 Antennae blackish, third joint more or less reddish or lighter colored 

 at base, palpi light yellow. Face and front silvery, parafrontals 

 darker in some lights, but not golden. No middle fronto-orbital 

 bristles. Frontalia slightly, if any, wider than one parafrontal. 

 Parafrontals with fine hairs outside the row of frontal bristles. 

 Front anteriorly hardly as wide as one eye, half as wide as one eye 

 at vertex. Facialia with some bristles extending about one-third 

 way up. Arista thickened on less than proximal half, first two 

 aristal joints short. Cheeks hardly one-third eye height. Thoracic 

 dorsum thinly silvery pollinose. Scutellum testaceous except ex- 

 treme base, apical pair of bristles weak, almost erect, decussate. 

 Abdomen with more or less red on sides, first segment and narrow 

 hind borders of second and third segments shining black, rest 

 thickly cinereous pollinose leaving a more or less distinct median 

 line. A median marginal pair of macrochaetae on first and second 

 segments, also three lateral marginal ones on each side of same seg- 

 ments, third segment with a marginal row of twelve or fourteen. 

 Anal segment with only bristly hairs. Legs wholly black, claws 

 and pulvilli very elongate, hind tibiae thickly ciliate, but with a 

 longer bristle near middle. Tegulae white. Four sternopleural and 

 four postsutural bristles, a few specimens showing a fifth weaker 

 sternopleural bristle. 



