BHYMOSIA. 103 



long and slender, tibiae spurred and with slender lateral setae. Wings 

 oval, base rounded, about as long as the abdomen, with microscopic 

 setulse arranged in parallel longitudinal rows. Costa ending before 

 tip of wing ; auxiliary vein rudimentary. The 1st longitudinal 

 vein straight, the 3rd beginning at its middle, mainly straight ; 

 anterior cross-vein oblique, placed before middle of wing. The 

 4th longitudinal forked immediately after contact with the 

 anterior cross-vein, the branches nearly parallel, gently diverging ; 

 5th vein forking before 4th, the branches diverging, 6th vein 

 strong but incomplete, 7th short and indistinct. 



Range. Himalayas, Bengal, Assam, Ceylon ; previously recorded 

 only from Europe and North America. 



Life-history. Apparently little is known, but Winnertz states 

 that R. fenestralis, a European species, breeds in Agaricus melleus. 

 Johannsen says some species feed on Armillaria, a genus of 

 fungi. 



A character of many species of this genus is the narrow forking 

 of the 5th longitudinal vein for a certain distance, after which the 

 branches semewhat suddenly diverge, and it may be distinguished 

 from such species of Allodia as have a narrowly forked 5th vein 

 at the base, by the strong anal vein. 



Table of Species. 



1. Thoracic dorsum mainly blackish, 



margin yellowish Jlavolimbata, sp. n., p. 103. 



Thoracic dorsum mainly yellowish 2. 



2. Thorax without distinct black stripes 



or marks 3. 



Thorax with the three usual dark stripes genitalis, sp. n., p. 104. 



3. Antennae with tip of each joint broadly 



black 4. 



Antennae uniformly brownish alboluteralis, sp. n., p. 104. 



4. Thorax light yellowish, shoulders con- 



colorous annulicornis, sp. n., p. 105. 



Thorax brownish yellow, shoulders 

 distinctly paler 5. 



5. Femora all pale yellow , humeralis, sp. n., p. 106. 



Posterior femora with black streaks 



below towards tips fasctpes, sp. n., p. 106. 



56. Rhymosia flavolimbata, sp. nov. 



c? $ . Head bright reddish yellow, including antennae, the tips 

 of each joint of the flagellum very narrowly but distinctly black ; 

 vertex and back of head blackish. Thorux : dorsum very dark 

 brown, with short pale yellowish hairs, margin of dorsum on three 

 sides pale yellow, the hind margin blackish, except at the corners, 

 which, with the scutellum, are yellow. Sides of thorax anteriorly 

 reddish yellow ; pleurae and metanotum black. Abdomen black, 

 moderately shining, with a few pale hairs. Genitalia of male very 

 large, pubescent, brownish yellow, the large first joint of the 



