130 INSECUTOR INSCITI^ MENSTRUUS 



differs in these same characters, as well as the structure of the 

 ovipositor. 



Genus MACROMASTIX Osten Sacken 



Macromastix maori, new species. 



Nasus lacking; mesonotum brownish buff, the praescutum 

 with four brown stripes ; wings cream-colored, with a pale 

 gray pattern that is, in part, ocelliform; a short spur on vein 

 M, jutting into cell M; abdomen dark brown. 



Male. — Length about 15 mm. ; wing, 25.5 mm. 



Frontal prolongation of head short, brown; nasus lacking; 

 palpi brown. Antennae with the first scapal segment grayish 

 brown; second pale; flagellum broken. Head bright brown, 

 narrowly paler adjoining the inner margins of the eyes. 



Mesonotal praescutum brownish buff with four brown 

 stripes, the interspaces with long, erect hairs; scutum brown- 

 ish buff, the centers of the lobes dark ; scutellum and postnotum 

 brownish testaceous, the latter with a capillary pale line. 

 Pleura light brown ; a conspicuous white stripe extends ob- 

 liquely across the lateral sclerites of the postnotum onto the 

 mesepimera. Halteres pale, the knobs broken. Legs with the 

 coxse pale brownish buff, clothed with an abundant long pubes- 

 cence ; trochanters pale ; remainder of the legs brown, the tarsi 

 darker brown ; tips of the femora and tibise scarcely darkened ; 

 claws simple. Wings cream-colored, the costal and subcostal 

 cells more yellowish ; a pale gray, partly ocellate, pattern, ar- 

 ranged as follows: Base of the wing, including the bases of 

 cells R, M, Cu (narrowly) and the Anal cells; a spur on M 

 into cell M at about midlength of the vein, this spur the center 

 of a large, circular mark in cells R, M, Cu and ist A; base of 

 Rs with a small solid area ; a second, larger, circle centers 

 about cell ist M^, passing through the ends of the basal cells, 

 the bases of cells 2tid M^, M^ and Cii^, and less distinctly across 

 the bases of cells R^ and 7?^; conspicuous gray clouds at the 

 ends of veins M^, M^, M^, C^i^, Cu^ and the Anal veins; 

 stigma small, brown ; veins brown. Venation : Rs rather long, 

 about equal to R.^ ; R^ semiatrophied, diverging strongly from 



