26 ENTOMOLOGICAL NEWS [Jan., '14 



The Male of Syringogaster brunnea Cresson, from 



Peru (Dipt.)* 



By E. T. CRESSON, JR., Academy of Natural Sciences, Phila- 

 delphia, Pa. 



Among some material from Callanga, Peru, in the collection 

 of the Hungarian National Museum, Dr. K. Kertesz found a 

 specimen of the genus Syringogaster which he determined as 

 my brunnea, although not agreeing with the description in 

 many respects. He sent it to me for verification, and it proved 

 to be the unknown male of that species, or at least I consider 

 it as such, with the following differences : 



Frontal median triangle polished, as is also the female to some ex- 

 tent. Posterior half of thorax black with the area about humeri rufous 

 (this black discoloration may be caused by the chemical action on the 

 pin.) Abdomen subopake, not polished as in female, brown with two 



yellow bands on the narrow first and second segments ; genital seg- 

 ment yellow, longer than broad, extending to apex of fourth beneath. 

 Anterior tibiae brown ; posterior femora discolored on the inside. Wing 

 venation and maculation as figured, the third vein being bent beyond 

 small cross vein, while that of the female is straight. 



The species having been described from Costa Rica, this 

 discovery also gives an interesting extension to its distribu- 

 tion. It may be explained here, in case there be some mis- 

 understanding, that what is considered the fused first and 

 second abdominal segments, may be all one segment, but as 

 understood in the typical description,* the first segment is the 

 narrow portion while the second is the dilated portion. The 

 two are sometimes readily distinguished by a faint impressed 

 transverse line between them. 



