14 
Psyche 
[February 
Described from specimen belonging to Sao Paulo Museum, 
Brazil. 
Notonecta minuta sp. nov. 
Size : Length, 7.2 mm.; width, 2 mm. 
Color : General view shows head, pronotum, legs and basal 
third of hemelytra yellow. Scutellum and distal two-thirds of 
hemelytra black with tips of membrane yellowish. Upon closer 
study there are seen to be enclosed in the broad black area across 
the hemelytra four small irregular orange yellow spots of nearly 
equal size. On one of the three specimens there are ill defined 
yellowish spots near the base and at the tip of the scutellum. 
Structural characteristics : Vertex : synthlipsis : : 9 : 2.1. 
The width of eye at base equal to the width of vertex. Interior 
width of pronotum : posterior width of pronotum : : 19 : 26. The 
genital capsule of the male is shown on Plate IT, Figure 7. 
Described from specimens in the Carnegie Museum bearing 
the label, “Prov. del Sara, Bolivia, 450 m. J. SteinbachV 
Notonecta pulchra sp. nov. ■ 
Size: Length, 8 mm.; width, 3 -mm. 
Color: Head, anterior half of pronotum, and legs yellow. 
Scutellum and hemelytra black save two pale spots at base of 
wings and an orange, irregular, transverse band at end of corium. 
Silvery hairs on hemelytra. A beautiful and striking species. 
Structural characteristics: Vertex : synthlipsis : : 11 : 3. 
The vertex being broader than # the width of eye at its base. The 
anterior width of pronotum : posterior width* of pronotum : : 22 
: 32. The genital capsule of male is shown on Plate II, Figure 3. 
Lilia Rica by Mr. F. Schade. Holot 3 q>e, allotype and many 
paratypes in author’s collection. Paratypes also placed in 
United States National Museum. 
