508 Prof. J. 0. "Wcstwood's descriptions of 



Genus Panops, Lamarck, Latr. 



Panops Lamarckiuiuis. (PI. V. fig. 1 and details.) 



Nigro-subcyancus, tlioracc antiee cum lateribus dense 

 luteo-pubesccntibus ; antennis totis nigris, capite duplo 

 longiorI])us, articulo idtimo longo, fcnui, filiformi, apice 

 subaciiniinato ; abdominis lateribus cum ventre obscure 

 sanguineis; ])edibus luteis, femoril)us nisi apice tibiisquc 

 linca externa nigris; ocellis parum distinctis, in tuberculum 

 vix clevatum positis ; thoracis dorso convexo integro, squa- 

 mulis concoloribus ; abdominis segmentis continuis, fere 

 nudis ; alis fuscis, cellula minima quadrata ad apicem 

 ccllulic mediana3 angustaj ; squamulis obscure albis. 



Long. Corp. lin. Gh\ ex})ans. alar. lin. 11. 



Habitat Moreton Bay, Australia. In ISlus. Ilopeiano 

 Oxonian. 



This species differs from P.Jlavipes (Latr. Enc. Mcth. 

 viii. p. 710) in its slender filiform antcnna3, its convex 

 thorax destitute of longitudinal impressions, and its general 

 colour. Like that species it has a minute sujiplemental 

 cell on the disc of the wings at the end of the long, central, 

 narrow, discoidal cell ; but in the unique specimen in the 

 Ilopeian collection the cell is of iniequal size in the two 

 Avings. Fig. If? represents the wing on the right side of the 

 body, and fig. \e the veins of the characteristic part of the 

 wing on the left side. The length of the wings equals that 

 of the head, thorax and half the abdomen, and the proboscis 

 reaches to the middle of the abdomen. 



Genus Lasia, Wiedemann, Erichson. 

 Panops, Macquart, Wiedemann (olim), Guerin, Blanchard. 



The species of this genus are distinguished from those 

 of Panops, (with wdiich they are united by the French 

 authors) by their geographical range (being confined to 

 South America), their metallic colours, and the position 

 of their antenna?. 



The species hitherto described are — 



1. L. Jlavitarsis, Wied., INIacquart, Erichson. {ante- 

 thystina, Perty, pi. 36, fig. 7; Jieris? violaceus, G. li. Gray, 

 in Griffith, An. Kingd.^Ins. p. 114, pi. 114, fig. 2.) 



Habitat in Brasilia. 



2. L. corvina, Erichs. Ent. p. 143. (Nigra, nitida, 

 thoracc nigro-hirta ; alis hyalinis, costa nigra.) 



Habitat Chili. 



