408 Mr. A. H. Haliday on the generic distribution 



Ent. Mag. i. 175. — Napma stagnicola minor. Desv. Myod. 800 ? 



Abundant on pools. 



Sp. 16. hecate, E. N. fusco-senea tarsis basi ferrugineis, alis fus- 



canis, nervis transversis obscuris utrinque hyalino-guttatis. 

 Ent. Mag. i. 175. — Eph.fuscipennis, Macq. S. a B. ii. 540. 

 Hollywood : very rare. 

 Sp. 17. pusilla, E. N. nigro-senea facie albicante, pedibus nigris, 



alis fuscanis nervis transversis obscuris. 

 Meig. Dipt. Eur. vi. V26.—Eph. infecta. Ent. Mag. i. 175. 

 Hollywood, &c., rare. 



Subg. 6. Ilythea, Curt. Guide, App. 

 Caput depressum, facie convexa inter antennas elevata, nisi late- 

 ribus nuda ; clypeo recondito. Mentum incrassatum. Labella crassa, 

 retro-producta obtusa. Arista dorso pectinata. 



Sp. 18. Spilota, E. I. nigra facie ferruginosa, tarsis flavis, alis 



nigro-punctatis. 

 Curtis, Brit. Ent. 413. 

 Not rare about pools and ditches. 



Subg. 7. CcENiA, Desv. 

 Caput depressum facie protuberante et margine peristomatis vil- 

 losis aut setosis ; clypeo recondito. Arista dorso pectinata. Men- 

 tum valde incrassatum. 



* AntemKB articulo 3* ohtuso. 

 Sp. 19. alhula, E. Coen. thorace obscure aeneo, abdomlne glauco 



incisuris obscuris, facie cinerascente, halteribus albidis. 

 Meig. Dipt. Eur. vi. 115. 

 Loch Fad, Isle of Bute ; August. 



Sp. 20. palustris, E. Coen. nigro-senea facie setosa, capite pedi- 

 busque nigris, halteribus fuscanis. 



Fallen, Hydrom. 4. Meig. Dipt. Eur. vi. 115. — Cosnia, id. Macq. 

 S. a B. ii. 530. pi. 21. fig. 14.— Ccenia caricicola, Desv. Myod. 800. 



Common in marshes. Erroneously cited as Eph. curvicauda in my 

 list of Diptera occurring about Hollywood, * Ent. Mag.' i. 150. 



Ephydra obscura, Meig.^ which has been found in England 

 by Mr. F. Walker^ belongs to the same section. 



** Antenna articulo 8° suhconico. 

 Sp. 21. defecta, E. Ccen. nigro-senea scutello cyanescente, an- 



tennis subtus tarsisque luteis, alis obscuris hyalino-guttatis. 

 Ent. Mag. i. 1 74. 

 Common in swampy spots. 



