THE CANADIAN ENTOMOLOGIST. 159 



intermediate flagellar segments not \ery deeply incised: front, 

 \ertex and occiput sliining yellow, no distinct mark on the \ern\. 



Pronotum yellowish; mesonotal pra>sciitiini orange-\ell()\\ wiiii 

 faint indications of darker stripes; a small hrown mark in ihc 

 notch of the transverse suture; scutum, sruicllum and iiosinoiiuu 

 without distinct marks. Pleura light yellow. Halteres brownish 

 \ellow, the knol)s \clIow. Legs, co.xa^ and trochanters yellow, 

 femora and tihite dull >ellow, the tips darker, tarsi brown. Wings 

 subhyaline. the tip broadly but indistinilK- siit'fus.-d with <larkcr: 

 stigma o\al, lirown; cells C and Sc. a lit tie \ello\vi>h. N'enation, 

 see pi. XI. fig. ,i. 



Abdomen with the tergites \ello\\i>h, slighlK' darki-r nu-ilially 

 and laterally; .segments <S and 9 brown; sterniles xellowish. The 

 male hypopygium with the 9th tergite from above (plate XI, fig. (3) 

 with the caudal margin four-lobed, the central lobes on either side 

 of the shallow median notch, these lobes provided with numerous 

 black denticuhe; the 9th sternite from below with a broad and deep 

 \'-shaped median notch. Outer apical appendages narrow, taper- 

 ing to a \er\- long [)oint; inner appendage with the usual ccphalad 

 prolfjngation, beneath which is a small, chitinized tooth. (See 

 plate XI, fig. 1.5.) 



Female. — Larger, the abdominal tergites with distinct brown 

 blotches on each segment, these broadest behind, narrowed to a 

 point in the front. 



Holotype, cT, Tokyo, Japan, .August. 1912 lA'ial K). 



Allotype, 9, Tokyo, Japan, August, 1912 (\'ial 42l. 



Pachyrhina palloris Coquillett. 



mm.—Pachyrluim palloris CociuiUetl, Proc. V. S. .\at. Mus.; 

 vol. 21, p. 306. 



1902.— P. palloris Kertesz, Cat. Dipt., vol. 2, p. ;521. 



1910.— P. palloris Riedel, Dcutsch. lint. Zeitschr., p. 436. 



Two females agreeing rather well with Coquillett's description, 

 but showing the following differences: The median thoracic vitta 

 is bisected from the front by a pale line, making this stripe double; 

 sides of the scutellum brown; the antenna', broken in the type, 

 luay be thus described : four basal segments yellow, remaining 



