228 PLATYPEZID^E. 



Black. Wings colourless. Halteres tawny. Legs yellow ; hind legs 

 blackish. Male. Hind border of the third and fourth abdominal segments 

 with interrupted white bands. Fern. Thorax with 3 silvery spots. Ab- 

 domen with 2 luteous and 2 silvery bands. 



Rare. In the British Museum. (E. I.) 



2. amoena? Mg. zw. iv. 12. 2 (1824); Mq. ; TAi.leptiformis 

 var. c, Fin. Atra, antennis pedibusque piceis, alis limpidis, halteribus 

 luteis, tibiis tarsisque anterioribus fulvis ; Foem. thorace maculis 3 argen- 

 teis, abdomine antice fulvo postice fascia argentea. Long. H ; alar. 

 8* lin. 



Male. Deep black, velvet-like. Antenna piceous. Wings colour- 

 less. Halteres luteous. Legs piceous ; anterior tibia and tarsi tawny, 

 the latter piceous towards the tips. Fern. Thorax with 3 silvery spots. 

 First, second, and third abdominal segments luteous Jifth with a silvery 

 band. Femora tawny. 



Bare. In Mr. Stephens's collection. (E. I.) 



3. speciosa, Mg. zw. iv. 14. 6 (1824); Mq. ; Ztt. d. s. lepti- 

 formis var. /3, Ztt. a. h. Atra, alis limpidis, halteribus piceis apice 

 nigris, tibiis tarsisque anterioribus ferrugineis ; Foem. thorace maculis 3 

 argenteis, abdomine fasciis 1 lutea Sque argenteis, femoribus ferrugineis. 

 Long. 1|-; alar. 4 h'n. 



Deep black. Wings colourless. Ilalteres piceous, with black knobs. 

 Legs black ; anterior tibiae and tarsi ferruginous. Fem. Thorax with 3 

 silvery spots. Abdomen with 1 luteous and 3 silvery bands. Femora 



Eare. In the collection of the Entomological Club. (E.) 

 Var. Male with a silvery spot at each side of the third segment. 

 In Mr. Haliday's collection. (I.) 



4. leptiformis, Fin. meth. d. 25. 2 (1810); Mg. ; Mq.; Ztt. 

 Aterrima, halteribus fulvis, alis hyalinis ; Mas. abdominis strigis 3 

 lateralibus argenteis ; Foem. thoracis maculis tribus argenteis, abdominis 



fasciis 3 interrupts, prima lutea, sequentiuiis et quarta integra argenteis. 

 Long. H ; alar. 3| lin. 



Male. Deep black. Wrings hyaline. Halteres fulvous, with a dusky 

 streak. Abdomen with a silvery streak on each side of the second, third, 

 and fourth segments. Legs dusky ; fore tibia3 and metatarsi yellowish ; 

 hind tibia? and tarsi blackish. Fem. Black. Head silvery. Thorax with 

 three silvery spots. Halteres fulvous, immaculate. Second segment of the 

 abdomen with a broad interrupted luteous band, third and fourth with 

 interrupted, sixth with entire silvery band. Legs luteous ; the tips of 

 the tarsi, the hind pair entirely, with the hind tibia3 and knees, dusky. 

 Legs (especially hind pair) shorter and thicker than usual. 



Rare. In Mr. Haliday's collection. (I.) 



5. antennata, Ztt. a. h. (1819). 79. 32; Fin.; Mg. ; Mq. Mas. 

 Atra, alis subfuscis, lialteribus pedibusque nigro-piceis. Foem. Nigra, alis 



