320 bulletin: museum of compakative zoology. 



Perla repanda, sp. nov. 



Type — M. C. Z. 10,837. Chile (Hagen coll.). 



Pale yellowish throughout (probably pale greenish when alive); antennae 

 and palpi scarcelj' brownish, no definite marks anywhere. Head rather small; 

 ocellar triangle longer than broad; posterior ocelli much larger than anterior 

 ocellus, and more than two diameters apart, still farther from the eyes; lateral 

 bosses elliptic, about size of posterior ocelli, plainly nearer to ocelli than to the 

 eyes. Pronotum fully one and one half times broader than long, slightly 

 narrowed behind, anterior angles acute, strongly rugose above. Wings long 

 and large; about twelve costal cross- veins before the end of the subcosta, six 

 or seven beyond; the anastomosis is very oblique, but little disjointed; radial 

 sector with two or three branches beyond anastomosis; the anal region shows 

 the basoanal vein arising long before the second vein from the anal cell, the 

 latter vein runs down nearly at right angles and then suddenly curves outward 

 (not seen in any other species). The last ventral segment of the male shows a 

 large elliptic smooth space, and curved depressed area each side. 



Length of body 18 mm.; expanse 57 mm. 



Neoperla basalis, sp. nov. 



'TiTE.— M. C. Z. 10,832. India: Lebong, 5,000 ft. (Rosenberg). 



Deep black, wings black; base and sides of pronotum, bases of wings, rest 

 of thorax and most of abdomen yellow, setae and antennae yellowish, legs 

 yellowish, front and mid tibiae and a line above on femora black, as also the 

 tarsi. Ocelli over three diameters apart, nearly twice as far from the eyes; 

 lateral bosses slender, almost twice as close to eyes as to the posterior ocelli, 

 and full as close to antennal ridge. Pronotum one and one half as broad as 

 long, plainly narrowed behind, front margin convex; ventral plate of female 

 not projecting, but straight across, with a distinct, small, median, triangular 

 incision. Radial sector twice branched, two cross-veins beyond end of sub- 

 costa, anastomosis straight across, hardly disjointed, nine or ten median and 

 cubital cross-veins. 



Expanse 24 mm. 



Closely resembles N. nigriccps, but rather larger and the yellow 

 on venter, base of wings, and pronotum readily separate it. 



Neoperla hageni, sp. nov. 



Type.— M. C. Z. 10,840. Borneo: Mindai, IS June 1882 (Grab- 

 owsky coll.). 



Pale dull yellowish throughout, antennae beyond the basal third brownish, 

 tips of tarsi dark. Head rather narrow; oceUi moderately large, but little 



