84 Mr. A. Patience on 



Genus Zyzzogeton. 

 Zyzzogeton, Bredd. Soc. Entoinol. xvi. p. 178 (1902). 

 Type, Z. haenschi, Bredd. 



Zyzzogeton mazaria, sp. n. 



Vertex, pronotum, and scutellum dark purplish brown ; a 

 large triangular longitudinal fascia to vertex (broader at 

 apex and narrower at base) pale ocliraceous ; pronotum with 

 two spots on disk between the lateral angles and one on 

 each lateral area ochraceous ; abdomen above, body beneath, 

 and legs chocolate-brown, basal margin of face ochraceous ; 

 tegmiua pale olivaceous green, inner and costal margins 

 (narrowly), apical margin (broadly), apex of claval area, 

 and a discal spot before apex dark purplish brown ; wings 

 fuscous brown ; vertex about half the length of pronotum, 

 centrally, broadly, foveately impressed, apically subtruncate, 

 ocelli much nearer to eyes than to each other ; face 

 centrally, longitudinally, broadly foveate, the lateral areas 

 transversely striate ; clypeus compressed, centrally angularly 

 elevated ; pronotum rugulose and punctate, the lateral angles 

 broadly, obliquely, obtusely, angularly elevated, anterior 

 margin ridged, basal margin strongly angularly sinuate 

 before scutellum, lateral margins oblique, very slightly 

 sinuate ; scutellum with the a])ical area finely transversely 

 wrinkled; corium distinctly and somewhat thickly punctate. 



Long., excl. tegm., 18 mm. ; exp. tegm. 38 mm.; exp. 

 pronot. angl. 6 mm. 



Hab. Colombia {R. Dagua, Brit. Mus.). Ecuador; Pa- 

 ramba and Cachabe [Rosenberg, Brit. Mus.). Peru (Brit. 

 Mus.). 



IX. — O'W Tiiclioniscoides albidus [Budde-Lutid) andT. sarsi. 

 Patience {nam. nov.). By ALEXANDER PATIENCE. 



[Plate VI.] 



Fani. Trichoniscidae. 



Gen. Trtchoniscoides, G. O. Sars. 



I FIRST met with the species Trichoniscoides albidus (Budde- 

 Luud) in company with Trichoniscus pijgmams, G. O. Sars, 

 and T. stebbingi, Patience, in a field near Alexandra Park, 

 Glasgow, in the autumn of 1906. Some time afterwards T 



