25 



less so on the anterior third ; a distinct but not high median carina, 

 and distinct, sharp, but not elevated lateral carinje ; posterior border 

 forming a right angle, minutely bordered. Tegmina longer than the 

 abdomen, brownish opaque, growing pellucid toward the tip, marked 

 with blackish and blackish fuscous blotches, of which, three are more 

 prominent than the others, and are situated on the principal vein ; 

 the first and largest at one third the distance from the base to the 

 apex; the second at one half that distance, and the third and smallest 

 at two thirds that distance; the veins fuscous, excepting one promi- 

 nent one in the middle of the wing, along the apical two thirds of 

 the basal half, which is luteous; wings pellucid, the veins prominently 

 fuscous, the base faintly washed with pale greenish yellow, the middle 

 of the outer margin slightly nebulous, the basal half of costal margin 

 a little fuscous. Legs brownish, marked with black points and fur- 

 nished with black tipped spines ; ovipositor pale luteous, edged and 

 tipped with black. Length of body .83 in.; of tegmina .85 in.; of 

 hind femora .46 in. One ? . Ecuador. 



23. Amorphopa caiman Sauss. 



A single $ , taken between Quito and Napo, is referred with some 

 doubt to Saussure's species. 



PHASMIDA. 



24. Bacteria sp. 



One specimen, labelled as coming from Napo or Maranon, the 

 abdomen of which is entirely wanting, is referable to B. mol'da 

 Westw., or B. gracilis Burm., but may not belong to either species. 

 The middle pair of legs have both the femora and tibias very ob- 

 scurely fasciated. 



25. Acanthoderus immanis nov. sp. 



Whole body rugose. Head with a median prominence, cleft in the 

 middle nearly to the base, so as to form on either side a divergent, 

 spinulose, compressed spur, three quarters of a hne in length, and 

 backed by a strong thorn. A pair of similar but erect thorns on the 

 prothorax ; four spines, the middle two of which are scarcely smaller, 

 upon the anterior border of the mesothorax ; from the outer edge of 

 the middle of the mesonotum spring two strongly divergent, very 

 stout, subcorneal prominences, armed at the tip with short but stout 

 spines, and below the tip with elevated warts; these prominences are 

 the largest on the body, and are fully one and one third lines in 

 length, and nearly half a line broad at base; the anterior edge of tho 



