176 CATALOGUE OF DIPTERA 



E. aestuans. Cinerea, capite thoracisque dorso femiginosis, 

 hypostomate luteo, alts cinereis (vel ferrugineis ) macula 

 punctisque alhis. (Long. .11; dilat. .3.) 



(To division C. b.) Head very large, face convex, tawny yellow 

 front ferruginous, generally paler in the middle : thorax opaque 

 ferruginous above, generally with grey lines and spots, sides 

 extending above the wings : scutel, metathorax and abdomen opaque 

 grey : poisers yellow : seta of antennae pubescent : markings of 

 the wings placed as in E. stagnalis, but more conspicuous, and the 

 spot between the 2d and 3d nervures is very large and square. 

 On marine rejectamenta ; common in autumn. 



E. paludum. 



None of the species with similar markings have the wings so ample 

 as the present. 



F. lutosa. Cinerea, capite thoraceque ferruginosis opacis, 

 alis cinereis, guttis 5 hyalinis. (Long. .09.) 



Half as large as E. stagnalis, and constantly distinct : the thorax has 

 no gloss or markings : the wings are lighter grey or ferruginous, 

 the spots less evident : face yellowish. 

 I have seen yet another species with the wings similarly 



marked, but it does not occur about Holy wood. 



E. graminum. Thorace cinereo punctis quinque pallidis, 

 abdomine pedibiisqne nigris, tarsis fiavis, alis cinereo- 

 maculatis. (Long. .08.) 



Marking of the wings nearly as in E. quadrata, of which it may be a 

 variety. 



E. compta. Nigro-cenea, abdomine pedibusque nigris, alis 

 cinereis, albo gtittatis, seta antennarum villosa. (Long. .08.) 



Markings of the wings as in E. noctula, and it may possibly not be 

 distinct. 



E. interrupta. Thorace oUvaceo fusco, vittato, abdomine 

 postice nigro-nltido, hypostomate antennis tarsisque jlavis, 

 alis fuscis, disco hyalinis, nervis iransversis infuscatis. 



(Long. .1.) 

 (To division C. c.) Larger than E. stictica, which it resembles ; the 

 transverse nervures are much more approximate, and the dusky 

 tip of the wings includes two deeper spots placed nearly as in 

 E. stictica. 



