DIPTERA. 349 



not prominent : inoboscis and palpi black: feelers pitchy ; third joint more 

 than twice the length of the second, not reaching the cpistoma, slightly 

 decreasing in depth from the base to the tip; sixth black, feathered with 

 very long hairs, stout at the base-, chest irith four black stripes : abdomen 

 slightly cinereous, ferruyinoiis at the base; second and third seyments with 

 three black stripes, the side pair slightly oblique; /owr^A loith two black 

 stripes: legs black: wings very slightly gray ; praebrachial vein forming a 

 curve at its flexure, very slightly bent inward from thence to its lip ; lower 

 cross-vein straight till near the tip where it is bent outward : alulae while 

 with pale yellow borders. Length of the body 3 lines ; of the wings 

 6 lines. 



New Zealand. 



MuscA SERVA, Mas. 



Cana ; caput argcnteum ; thorax nigra quadrivittatus ; abdomen fulvuin, 

 segmentis nigro fasciatis ; antennm nigra, basi ferruginea ; pedes 

 fulvi, tarsis 7iigris ; ahe subcinerecB. 



Black : head with a silvery ickite covering ; frontalia deej) brown 

 widening much towards the feelers, facialia without bristles ; epistoma not 

 prominent : proboscis and palpi tawny : feelers hlack ; first and second joints 

 ferruginous ; third pubescent, almost truncated at the tip, not reaching the 

 epistoma, more than twice the length of the second : sixth tawny, feathered 

 along two-thirds of the length, black and thick at the base, about twice 

 the length of the third : chest with a hoary covering, and with four black 

 stripes, the side pair interrupted : abdomen tawny ; hind borders of the seg- 

 ments blackish : legs tawny ; feet black : ivings very slightly gray ; praebra- 

 chial vein forming a gentle curve at its flexure, hardly bent inward from 

 thence to its lip ; lower cross-vein with the two curves, the lower deeper 

 than the upper: alula; dingy white with pale yellow borders: halleres 

 tawny. Length of the body 2;V lines ; of the wings 5 lines. 



United States. 



2 z 



