1916] Brues — A New Species of Apkiochoefa 175 



A NEW SPECIES OF APHIOCH^TA (DIPTERA, 

 PHORIDiE) FROM NEW ENGLAND. 



By Charles T. Brues, 

 Bussey Institution, Harvard University. 



Aphiochaeta johnsoni sp. nov. 



Length, 2.0 mm. Fore tarsi thickened; mesopleura bristly 

 above, without any macrochseta, two scutellar bristles. Thorax 

 brownish yellow; head black; abdomen black or piceous, the first 

 three segments narrowly margined with whitish; hypopygium 

 fuscous, its lamella yellow; legs luteous or dull yellow. Front 

 slightly broader than high; ocellar tubercle large, median frontal 

 groove present, proclinate bristles four, the lower pair much more 

 delicate than the upper pair and almost as far apart ; inner bristle 

 of lower reclinate row on the anterior margin of the front midway 

 between the upper proclinate one and the eye-margin, outer bristle 

 close to the eye-margin and well above the margin of the front; 

 middle row of four equidistant bristles forming a row that is bent 

 down medially. Antennse not enlarged, dark fuscous, arista as 

 long as the head height, strongly pubescent. Palpi distinctly 

 enlarged, but less so than in A. projecta, with several short bristles 

 below and a pair at tip almost as long as the vertical thickness of 

 the palpus; cheeks each with two strong bristles; postocular cilia 

 strong. Propleura above the coxa with stout bristles and with 

 weaker ones on its upper half. Mesonotum subshining, hairy, 

 with a number of bristles along the sides and posterior edge; 

 scutellum with two bristles and two hairs; mesopleura above with 

 a patch of small bristles of equal size. Abdomen opaque, with 

 scattered bristly hairs, especially conspicuous near the sides of 

 the basal segments and on the disc of the fourth and following 

 segments. Hypopygium and its median lamella also bristly. 

 Legs stout; anterior tarsi thickened, longer than their tibiae; 

 middle tibiae with very weak cilia; those of hind tibiae a trifle 

 stronger, but not conspicuous; hind tibiae with four short transverse 

 rows of minute bristles inwardly at tip; hind tibiae not ciliate below, 

 with only the usual short hairs. Wings large, distinctly tinged with 

 brownish; costal vein extending to distinctly beyond the middle of 

 the wing; costal cilia short and closely placed; first section of 



