cxx Description of an Agrion. 



laetafemora simple, but very long, extending considerably beyond the abdomen, the 

 apex of which is not covered by the elytra. 



Hab. — New Zealand. In Mr. S. Stevens's collection. 



Not an uncommon type of Clytus : the Kev. F. W. Hope has described a very 

 similar species from India, under the name of C. bicinctus. 



Family — Saperdidje. 



Genus — Sapeuda, Fabricius. 



Saperda bilabilis. 



Fulva ; antennis nigris, cinereo cinctis ; octilis, capitis lateribus, prothoracis plaga 

 longitudinali mediana, scutello, elytrorum macula utriusque humerali alteraque 

 prmapicali nigerrimis. (Corp. long. *4 unc. Elytrorum lat. max. - 1 unc.) 



Head, prothorax and elytra fulvous ; antennae black, annulated with gray ; eyes 

 black, and united with a large black patch which extends to the anterior margin of 

 the prothorax, occupying the entire side of the head, and reducing the fulvous on the 

 epicranium to a mere vitta : prothorax with a median black vitta : each elytron has 

 a small shining black spot at the humeral angle, and a larger oblong black spot in 

 the apical area : metasternum fulvous, the other parts beneath grayish : legs black, 

 very short. 



Hab. — New Zealand. In Mr. S. Stevens's collection. 



Art. XIV. — Description of an Agrion from the Interior «f South America. 

 By Edward Newman. 



Natural Order — Libellulites. 



Genus — Mecistogaster, Rambur. 



Mecistogaster ancilla. 



Nigrum, stiblus albidum ; alis hyalinis, anticis apicem versus fuscescentibus apice 

 ipso late fulvo. (Corp. long. 3 - 75 unc. Alarum dilat. 4 - 75 unc.) 



The entire upper surface of the thoracical and abdominal segments is black, with 

 the slightest possible metallic tinge ; the lateral margins of the prothorax are white, 

 and there are two white oblique lines on each side of the mesothorax, the upper narrow, 

 the lower broader and terminating in the mesocoxae, the metasternum and the lateral 

 and under surfaces of the abdomen are white as also are the tarsi, the other parts 

 of the legs being black : the anterior wings are transparent and colourless except the 

 tip, where they are stained with a smoky hue, which becomes gradually deeper until it 

 reaches a beautiful opaque fulvous patch of a somewhat oval figure, which completely 

 occupies the apex : the nervures of the wing before reaching this fulvous patch be- 

 come much more numerous, and within the patch are so numerous and crowded as to 

 occupy almost the entire surface of the wing, the cells being only perceptible under 

 a lens of high power, and then merely as points less opaque than the rest of the 

 wing : the posterior wings are hyaline and colourless. 



