NO. 1938. THE DIPTEROUS FAMILY PHORID.^—MALLOCH. 491 



pale yellow, of normal size and bristling; thorax deep reddish brown, 

 rather polished, narrow; mesopleiira bare, scutellum with two bristles, 

 pleurae paler than thorax, sliining; abdomen brown, rather dull, seg- 

 ments subequal, several weak bristles on lateral margins of second seg- 

 ment, venter or female pale yellow; legs yellow, apices of hind femora 

 broadly dark brown, hind femora broad, hind tibial setulse distinct, 

 longest on middle; wings distinctly infuscated especially along the 

 veins, costa to beyond middle, first division in male slightly longer 

 than second, third about three-fourths as long as second, in female 

 first and second nearly equal, third about one-half second, a distinct 

 bristle at base of third vein, fringe rather short and sparse, base of 

 third vein near to costa and the basal costal cells narrow, fourth vein 

 slightly curved at origin and ending before wing tip ; hal teres yellow. 



Length, 1-1 J mm. 



Type.— CaU^o. 14889, U.S.N.M. 



A small, very slim, and distinctly shining species that may find 

 its way in the paler forms into the section with yellow thorax, but it 

 is more closely allied to minor and the smaller species in this section 

 than to those in the scalaris section. Four specimens in collection 

 were standing as A. giraudii Egger, to which they bear no resem- 

 blance. The diaiy notes are "No. 978 — A. Giraudii, orig. spec, 

 exam. det. Brues." Note by Pergande, "1st Sept. 1881; Today 

 issued thi-ee of these flies from a pupa which was found dead in stem 

 of rice, rec. from L. O. Howard, Aug. 22nd from Atlanta, Ga. {Chae- 

 topsis aenea, Wied.)." Fourth specimen. Note 374-X04. "Orig. 

 spec. exam. det. Brues." No notes as to locality or habitat. If these 

 are the specimens on which the American occurrence of this species 

 rests then it must be removed from the list. Three specimens labeled 

 Ohio, without other data, standing among the unidentified material. 



APHIOCHiETA CAVERNICOLA Brues. 



Black or piceous; frons fully twice as broad as long, subshining, 

 post-antennal pair of bristles veiy long and stout and more nearly 

 porrect than is usual in this genus, following two rows slightly curved 

 downward, ocelli placed on a tubercle, frontal suture present, antennal 

 cavity large and deep, antennae brownish yellow, of moderate size, 

 arista long, pubescent, palpi large, and rather slender, with the usual 

 bristles, proboscis retracted; thorax piceous, subshining, no con- 

 spicuous bristles except the pair of dorso-central ones and a single 

 one in front of each wing base ; abdomen long and narrow, black, bare 

 except for a few scattered short hairs in male, male hypopygium 

 small, the small lamella triangular and scarcely projecting; legs 

 slender, testaceous yellow, tibiae bare except for a slight trace of 

 cifiation on hind pair; wings very large, tinged with brownish, costa 

 a little beyond middle, fringe moderately long and thickly placed, 



