158 INSECUTOR INSCITI^ MENSTRUUS 



segment above ; a small snbevanescent gold spot on metapleura, 

 but outside of this and the propleural spot the smallest (of 

 the four remaining spots) is on the pteropleura. Thus in all 

 there are six pleural gold spots. Tegulse light golden, hind 

 scale whitish posteriorly. The female has the lateral ventral 

 spot of anal segment golden, the sides of first hypopygial seg- 

 ment golden, and also differs from the male in having two 

 postalar bristles and no postsuturals, one proclinate orbital and 

 two divaricate reclinate orbitals, and the outer vertical ap- 

 proaching the inner in strength. Male claws strongly elongated. 

 All tarsal joints strongly double-spined apically in both sexes. 

 Fourth ventral plate of male conspicuously rounded off on hind 

 corners and bearing a single median process before posterior 

 margin in the form of a pointed hump which appears due to 

 pressure of base of fifth ventral plate below it. Fifth ventral 

 plate deeply slit posteriorly, the edges of slit oblique but even. 

 Ventral plates of female all exposed, two to four overlapping 

 the lateral ends of the tergites, five and six overlapped by the 

 lateral ends of fifth or anal tergite. 



Aulacophyto, new genus. 



Genotype, Aulacophyto auromaculata, new species. 



Allied to Buparaphyto and Microcerella. Head higher than 

 long. Antennae reaching well beyond middle of face, second 

 joint elongate, third joint one and a half times to twice the 

 length of second. Male front much narrowed. Female para- 

 frontalia conspicuously longitudinally corrugated or furrowed 

 on posterior half. No proclinate or reclinate fronto-orbitals in 

 either sex. Parafacialia with row of very fine weak hairs. 

 Arista thickened about or nearly half way. No discals on. 

 scutellum. Acrostichals entirely absent, only one postsutural 

 in female but three in male, two sternopleurals. Costal spine 

 vestigial. Third vein bristled only at base. 



Aulacophyto auromaculata, new species. 



Length, 7 to 9 mm. Numerous males and females, Oroya, 

 Peru, March 7, 1913, and May 7, 1914 (C. H. T. Townsend). 



Differs in coloration from Buparaphyto auromaculata as 



