22 . 2 Muir: The Genus Myndus 167 



Myndus mundus sp. nov. Plate 1, fig. 10. 



Male. — Length, 2.7 millimeters; tegmen, 3. In build and color 

 this species is very much like M. hyalinus, but it is slightly 

 lighter in color and the genitalia are quite distinct. 



Pygofer symmetrical, the medioventral process short and 

 widely angular. Anal segment but slightly asymmetrical, apex 

 rounded, left margin slightly lower than right. Periandrium 

 fairly large, subangularly produced on dorsal aspect near apex, 

 with two long, thin processes arising from a common base and 

 forming a U-shaped process near the apical margin on right 

 side, penis considerably chitinized with two long spines and a 

 small one between them. Genital style nearly straight, slightly 

 curved at apex where it is produced into a broad spine pointing 

 basad. Apex round, inner margin entire, slightly convex at 

 apex, outer margin slightly sinuous. 



Female. — Length, 3 millimeters; tegmen, 3.7. Similar to the 

 male; lighter in color than M. hyalinus. 



Borneo, Sandakan (Baker) , 1 male and 1 female. Type No. 

 1072. 



Myndus caligineus sp. nov. Plate 1, fig. 11. 



Male. — Length, 2.4 millimeters; tegmen, 3. Width of vertex 

 at base considerably (one-third) greater than length in middle; 

 transverse carina distinct in middle; frons about as wide as 

 long, slightly larger before apex, base and apex subequal in 

 width; median ocellus distinct. Fork of Sc and R near base, 

 fork of Cu about middle of clavus. 



Pygofer symmetrical, medioventral process small, lateral mar- 

 gins entire, not produced. Anal segment symmetrical, much 

 longer than broad, apex rounded, anus about middle. Perian- 

 drium long, tubular, with one large spine on ventral aspect near 

 apex pointing basad ; penis long, semichitinous with four spines, 

 two about middle, the other two more apical. Genital style 

 small, inner margin entire, slightly convex, outer margin straight 

 on basal half, then concave, apex truncate. 



Dark castaneous, legs slightly lighter. Tegmina dark casta- 

 neous, tubercles small, numerous, dark ; wings castaneous, veins 

 darker. 



Female.— Length, 2.8 millimeters; tegmen, 3.3. In coloration 

 similar to male. 



West Borneo, Mowong, September, 1907 (Muir), 1 male and 

 1 female. Type No. 1073. 



