42G Dr. J. L. Hancock's FurtJwr Studies of Tctrifjime. 



infiiscate, hind tibire ferms^dnou?, obscurely infuscate at the middle 

 part. The subgenital plate of the female abdomen having the apical 

 marginal sinus broadly and yet quadrately excavate, ecpial in width 

 to the bases of both inferior blades of ovipositor, the small angulate 

 lobe thus formed on each side smooth, underneath the subgenital 

 plate is infuscate. 



Entire length of body, female (front to end of wings), 15 mm. ; 

 proriotum 12-8 mm. ; jjosterior femora 7"5 mm. 



One example from Brazil, S. America, collected by Bates; 

 W. W. Saunders' collection, presented by Mrs. F. W. Hope 

 to the University Museum, Oxford. 



2. S. hrevis, sp. nov, 



Male. — Colour : dorsum of pronotum, vertex, and the anterior 

 and middle legs brownish ferruginous, face below the eyes and 

 lateral lobes below the middle pale yellow ; lateral lobes above 

 obscurely infuscated or -pale granulate ; the elytra, posterior femora, 

 and hind tibite dark infuscate ; abdomen pale yellow toward the 

 apex. Body small, pronotum and wings abbreviated, elytra immacu- 

 late ; head little compresso-elevated, the base of the large globose 

 eyes much lower than the middle dorsal summit ; vertex smooth, 

 sides convergent forward, nearly equal in width to one of the eyes, 

 viewed from above the frontal costa barely protrudes beyond the 

 anterior border ; frontal costa narrowly compressed between the 

 antennte, in profile convex, the face oblique. Pronotum very small, 

 anteriorly produced in an elevated uncinate spine, posterior process 

 acute not at all extended backward to the knees of hind femora ; 

 median carina percurrent, little obliquely ascendant forward, and 

 horizontal jjosteriorly; prozonal carina? subexpressed; lateral carinae 

 distinct at the humeral angles, anterior and middle femoral apices 

 not at all spined. 



Entire length of body from front to apices of hind femora, 9-7 

 mm.; pronotum 7'5 mm.; posterior femora 5"5 mm. 



One example from Cachabi, Ecuador, 500 ft., Nov. 190G, 

 collected by Rosenberg ; presented by Malcolm Burr to the 

 University Museum, Oxford. 



Explanation of Plate XXII. 



[See Explanation facing the Plate.] 



