514 Prof. J. O. WcstwooiVs descr/jitions of 



Long. Corp. lin. 6; expans. alar, antic, lln. 12 = unc. 1. 



Habitat in Brasilia. In Mus. Hopeiano Oxonia? (olim 

 nostr.). 



This species n2;rees "witli the general character o? Plalea, 

 as laid do\Yn by Erichson, but the antenn;e arc affixed on 

 the underside of a tubercle in the middle of the face 

 between the eyes and are dcflexcd, and the ■wings have a 

 veinlet extending from the apex of the narrow antero- 

 discoidal cell to the hind margin of the "wings (fig. 2r.-*); 

 this veinlet is wanting iu the unique species described and 

 figured by Erichson. 



PlALEOIDEA, Wcstw. 



Caput minimum, oculls inter se ]iaullo distantibus, hirtis; 

 ocellis duobus verticalibus. Proboscis abbreviata. An- 

 tennas ca]iite longiores, in tuberculum parvum ante et 

 jirope ocellos, inserts, basi contigufe, 3-articulatne; articulis 

 duobus basalibus brevibus, 3tio longo, subcylindrico, apice 

 setoso. Scutellum transversum ; abdomen ovatum, thorace 

 vix latins ; ala2 breves, venis ut in Picded dispositis, vena 

 media recta longitudinal! ad marginem posticum ala3 tamen 

 extendit. 



Genus Pialea proximum, differt primo intuitu anten- 

 nai'um insertione ut et vena longitudinal i media alarum. 



Pialcoidea magna. (PI. VI. fig. 3 and details.) 



Obscure lutea, thoracis disco et maculis transversis 

 abdominis nigrls. 



Long. Corp. 7 lin.; expans. alar. 13 lln. 



Habitat in Georgia, America. In jNIus. Brit. 



Syn. Cyrtus ??^«r/(7???<5, AValker, Cat. Dipt. B. INI. i. pt. 3, 

 p. oil, and ii. p. 336. 



Obscure lutea, luteo-pilosa. Ca])ut nigrum, luteo-pllosum; 

 antennis ]nceis, articido tertio (basi excepta) nigro. Thorax 

 disco fiisciisque transversis ad basin segmentorum abdominis 

 suba^neo-nlgris. Pedes Intel, femoribus In medio, tlbliscpie 

 subtus obscurioribus ; tarsis pallidis, ungulbus nigris. 

 Tcgulre pallide fusca). Ala; lutescentes, venis ferrugineo- 

 brunneis. 



NoTHRA, Westw. 



Proboscis abbreviata. Antenna mlnimce seta tenulsslma 

 terminall instructa}, hypostomate inserta^. Oculi antice 

 contigui, hirti. Ocelli 2 verticales. l^rolhoracis l<)l)i dor- 

 sales distantes. Al)domen h[emispliericinn. Alarum vente 



