102 EMPID^. 



19. thoracica, Mq. d.ii. 115. 14 (1827); Mg. Fulm, antemiis 

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

 alar. 5 liu. 



Tmcny, shinimj, slightly hairy. Proboscis, palpi, anil antennse black ; 

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

 brown ; veins l)lack, 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. 



Gommon in woods ; not gregarious. (E.) 



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

 halleribus'pedibmque fmcis, tarsis nigris. Long, li- ; alar. 3 lin. 



Black, \\wrj. Wings almost colourless ; stigma dark brown; veins 

 black. Halter es dark hr axon. Legs brown ; knees tawny ; tarsiblack. 

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



Genus III. RAGAS. 



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



Proboscis incurva, capite miilto brevior. Antennae ^-articulatae ; arii- 



culus tertius quhito longior. Alarum vena cubitalis furcata. Coxce 



femoribus breviores. 



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

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

 the ftfth. Wings with the cubital vein forked. Coxae 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. Br achy stoma]}., Ztt. 



Proboscis capitis longitudine. Antennae 4-articulat8e ; articulus primus 

 cylindricus ; secundus cyathiformis ; tertius conicus, quarto brevior ; 

 quartus longissimus, setiformis. Alarum vena cubitalis furcata; 

 costalis ad alae apicem desinens. doxae femoribus breviores. 



