Die Arten der Platystomiiion. 



363 



33, Eupi'osopid aiistralls Walker. 



Platystoma australe Walker (nom. bis lect.), List. Dipt. Brit. Mus., Vol. 4, 

 p. 1061 (1849). 



Geschlecht ? Australien. 



„Head pale yellow, adorned with broad deep brown stripes between 

 the eyelets and the base of the feelers, and having a short brown stripe 

 on each side towards the epistoma: eyes darkred; fore part rather flat, 

 its facets a little larg-er than those elsewhere: sucker black, clothed with 

 tawny hairs: palpi black, beset with black bristles: feelers ferruginous, 

 aboiit half the length of the face, their grooves pitchy; 3. Joint nearly 

 linear, conical at the tip, about foiir times the length of the second; bristle 

 black, bare, tawny towards the base, near thrice the length of the 3. Joint: 

 ehest pale reddish brown, adorned with 2 regulär black stripes, and 

 with 4 irregulär hoary stripes: abdomen obconical, dark brown or black, 

 dull, clothed with white hairs, not longer than the ehest, hind borders 

 of the Segments hoary; legs pitchy; shanks dark tawny with pitchy tips; 

 feet black, white at the base: wings colourless, adorned with many small 

 brown spots, which are chiefly along the fore border and the hind border; 

 a blackish-brown band extends across the middle of the wing and be- 

 comes narrower and paler as it approaches the hind border; near the tip 

 there is another brown band of equal breadth, and a little beyond the 

 latter a brown irregulär stripe runs along the fore border to the tip of 

 the wing; wing-ribs and veins black; lower cross-vein nearly straight: 

 scales dingy white; poisers tawny. Length of the body 41ines; of the 

 wings 9 lines." 



71. Genus Engistoneura Loew. 



Monogr. N.-Amer. Dipt., Vol. 3, p. 43 (1873). 



Tabelle der Arten. 



Die hellen Striemen des Rückens werden durch die gelbe Grundfarbe 

 des Thorax hervorgebracht 3 



— Die hellen Striemen des Rückens werden nur durch weißliche Be- 



reifung der sonst schwarzbraunen Grundfarbe erzeugt ... 1 



1. Die braune Querbinde von der Kosta bis um die kleine Querader 



herum ist wurzelwärts durch einen glashellen Zwischenraum 

 isoliert ^ 



— Obige Querbinde hängt wurzelwärts breit mit dem Braun des Flügel- 



vorderrandes zusammen. 3. E. obscura n. sp. 



2. Taster gelb, Stirnc länger als breit. Die äußere der zwei glashellon 



Querbinden des Flügels gerade, senkrecht und schmäler als die 

 vorhergehende. 1. E. maerens Fabricius. 



— Taster an der Spitze schwarz. Stirne kaum so lang wie breit. Die 



