232 EXOTIC NEUROPTERA. 



Notiothauma McLachlan. — Based on a broked specimen. 

 There is a perfect female in the Hamburg Museum. To 

 McLachlan's description may be added that the legs are very 

 slender, and with many long, stiff bristles ; the subcosta and 

 radius run out close together for a distance and then each 

 forks. There are stiff, thick bristles on thorax and base of 

 wings. The specimen is from Valdivia, Chili. 

 CHORISTA Klug. 



Euphania Westwood is the very same form. Panorpa rufi- 

 ceps Newm. goes in this genus, but differs from C. australis 

 in larger size and more fumose wings. In several of the 

 European museums is a species, labelled as Eupha7iia, but 

 with more cross-veins throughout, as in figure ; it may form 

 a new genus or subgenus. 



PANORPA Linn. 



Several genera have been separated off from Panorpa, but 

 on characters of little value or variable in occurrence. Au- 

 lops Enderl, for those with the subcosta ending long before 

 the stigma separates species which are evidently otherwise 

 very closely allied, moreover the subcosta often bends near 

 middle to the costa, and sometimes connected thereto. 

 The number of cross-veins between anal and auxiliary veins 

 has been used, but often varies in the two wings of one speci- 

 men ; the length of the abdomen is not of generic value, so 

 that Leptopanorpa, Himanturella and Ca^npodotecnuni are 

 synonyms of Panorpa. 



BITTACUS. 



I cannot find any valuable character to separate any spe- 

 cies off from this genus except B. apternus. Diplostigma 

 Navas is based on a character more or less evident in other 

 species, probably due to age, B. chlorostigma has this double 

 appearance of the stigma strongly developed. Thyridates 

 Navas, for B. chilensis, also lacks a peculiar character ; it and 

 B. blancheti have three costal cross-veins, but B. afHnis 

 Westw. and B. testaceus Klug have one extra costal cross- 

 vein. In B. chilensis the radial sector forks much before the 

 forking of upper branch of the median ; but in several spe- 

 cies this is more or less evident, and in a series of B. occi- 



