102 



EMPID.E. 



19. thoracica, Mq. d.n. 115. 14 (1827); Mg. Ftdva, anteiniis 

 nigris, alls cinereis, tarsis fuscis ; Mas. abdomine fusco. Long. 2 ; 

 alar. 5 lin. 



Tawny, shining, slightly hairy. Proboscis, palpi, and antennae black ; 

 fourth joint of the antenna longer than the third. Wings grey ; stigma 

 brown ; veins black, tawny towards the base ; fork of the third longi- 

 tudinal vein long, much curved near the base. Tarsi brown. Male. 

 Abdomen brown. Fore metatarsi very long, slightly dilated. 



Common in woods ; not gregarious. (E.) 



20. obscura, Mg. zw. iii. 11. 20 (1822). Nigra, alis subUmpidis, 

 halleribus pedibusque fuscis, tarsis nigris. Long. 1^ ; alar. 3 lin. 



Black, hairy. Wings almost colourless ; stigma dark brown ; veins 

 black. Halteres dark brown. Legs brotcn ; knees taicny ; tarsi black. 

 Rare. In the collection of the Entomological Club. (E.) 



Genus III. RAGAS. 



LUGAS, Wlk. e. m. iv. 229 (1837). 



Proboscis incurva, capite multo brevior. Antenna -articulata ; arti- 



culus tertius quinto longior. Alarum vena cubitalis furcata. Coxae 



femoribus breviores. 



Proboscis incurved, much shorter than the head. No maxilla. Palpi 

 obovate. Antenna with the first joint shortest ; third joint longer than 

 the fftJi. Wings with the cubital vein forked. Coxa shorter than the 

 femora. 



Male. Proboscis shorter. Middle femora with an erect spine at the 

 middle of the underside. 



1. unica, Wlk. e. m. iv. 229. 1 (1837). Atra, pubescens, alis 

 nigro-fuscis ad costam obscurioribus. Long, f-1 ; alar. 1 1|- lin. 



Black, dull, rather short, not hairy. Proboscis slender, twice the 

 length of the head. Wings dark brown ; no stigma. Abdomen 

 tapering, a little longer than the thorax. Legs moderately long. 



Rare ; appears in woods. In the collections of the Entomo- 

 logical Club and of Mr. Haliday. (E.I.) 



Genus IV. BRACHYSTOMA. 



BRACHYSTOMA, Mg. zw. iii. 12 (1822); Mq. Brachystoma^., Ztt. 



Proboscis capitis longitudine. Antenna 4 -articulate ; articulus primus 

 cylindricus ; secundus cyathiformis ; tertius conicus, quarto brevior ; 

 quartus longissimus, setiformis. Alarum vena cubitalis furcata; 

 costalis ad ala apicem desinens. Coxa femoribus breviores. 



