Die Arten der Platystominen. 325 



ten lurid dots on each, and with a larger white dot on each tip. Halteres 

 testaceous. Length of the body 1^/^ liiie: of the wing 3 lines." 

 Zu Punkt 5 der Tabelle. 



18. I^erogenia truncatula Walker. 

 Lmnprogaster truncatula Walker, Proc. Linn. Soc. Lond., Vol. 1, p. 31 (1857). 



9, Singapore. 



„Nigra robusta, abdominis apice compresso lanceolato, tarsi albis, 

 alis subcinereis lituris transversis fuscescentibus fasciisque duabus nigro- 

 fuscis. — Black, stout, slightly shining. Arista pubescent. Abdomen 

 compressed and lanceolate at the tip. Tarsi white, with black tips. Wings 

 slightly greyish, with several slight transverse brownish marks, and with 

 two. blackish-brown bands; the 1. broad, basal, not extending beyond 

 half the breadth from the eosta; the 2. narrow, entire, near the first: veins 

 black; discal transverse vein straigth and upright, parted by one-third 

 of its length from the border, and by very much more than its length 

 from the praebrachial transverse vein. Halteres testaceous. Length of 

 the body 2^/^ lines; of the wings 5 lines." 



Gehört zu Punkt 3 der Tabelle; ähnlich P. fidiginosa. 



19. JPferof/enia hvevis Walker. 



Platy Stoma breve Walker, Proc. Linn. Soc. Lond., Vol. 8, p. 120, 49 (1865). 



Neu-Guinea. 



„Cf. Black, broad, short, stout. Head whitish about the eyes; bind 

 border of the vertex and fore border of the front and two dots between 

 the eyes whitish: face shining; epistoma slightly retuse, whitish-bordered. 

 Antennae much shorter than the face; third Joint nearly linear, about 

 twice the length of the second, which is piceous; arista slightly plumose. 

 Thorax with two whitish humeral calli and with 3 slender cinereous stripes, 

 which are obsolete hindward. Abdomen oval, a little shorter and nar- 

 rower than the thorax; bind borders of the segment whitish. Legs short, 

 stout; tarsi white; fore tibiae slightly dilated and fringed, with a whitish 

 protuberance on the inner side. Wings whitish, with numerous blackish 

 transverse Spots which form incomplete bands; subapical band and apical 

 band entire, the former including the discal transverse vein; veins black; 

 discal transverse vein straight, parted by one-third of its length from 

 the border, and by twice its length from the praebrachial transverse 

 vein; halteres whitish. Length of the body 4V2 Imes, of the wings 9 lines." 



Gehört zu Punkt 6 der Tabelle. 



20. JPteroqenia ffuttata Walker. 

 Lamprogaster guttata Walker, Proc. Linn. Soc. Lond., Vol. 1, p. 31, 105 (1857). 

 9. Singapore. 



„Cinerea, capite nigro trimaculato antice testaceo, antennis fulvis, 

 thorace cano-quinquevittato. lateribus testaceis, abdominis fascia antica 



