COLLECTED IN BORNEO, ETC. 99 



2. Ampulex compressa. 



Chlorion compressum, Fahr. Syst. Piez. p. 219. 

 Hab. Malacca (Mount Ophir). Borneo (Sarawak). 



3. Ampulex smaragdina. A. Isete viridis; pedibus abdomineque 

 purpureis; prothorace tuberculato; alls anticis obscure unifasciatis. 



Female. Length 8 lines. Brilliant green with shades of violet and 

 coppery effulgence ; the vertex angulated, the sides oblique from the 

 margin of the eyes ; the antennae shorter and much thicker than in 

 A. insularis. The prothorax subtuberculate in front; the meso- 

 thorax, scutellum and post-scutellum, smooth and shining, the former 

 with a longitudinal coppery vitta in middle ; the wings subhyaline ; 

 the anterior pair with a slight fuscous cloud crossing them from the 

 marginal cell; the legs bright purple; the anterior pair with their 

 coxae beneath, their femora and tibiae in front ferruginous. Abdomen 

 brilliant purple, smooth, shining and impunctate. 



Hab. Singapore. 



4. Ampulex insularis. A. fulgide viridis, abdomine purpureo 

 lavato ; prothorace elongato, laevigato, nitido, sine tuberculis ; alis 

 anticis fasciatis. 



Female. Length 8 lines. Brilliant green; the head smooth and shi- 

 ning ; the vertex subquadrate with the posterior angles rounded ; the 

 clypeus covered with silvery pubescence ; the mandibles ferruginous ; 

 the antennae black. The prothorax smooth and shining, not tuber- 

 culate; the mesothorax, scutellum and post-scutellum, smooth and 

 shining; the metathorax transversely striated, and having a central 

 and three lateral carinae, the third recurved inwards at the apex ; the 

 sides margined, the apical angles produced into short acute teeth ; the 

 wings subhyaline with a fuscous cloud crossing the anterior pair at, 

 and being the width of, the marginal cell ; the tibiae and tarsi obscurely 

 aeneous. Abdomen : very smooth and shining, with purple and violet 

 tints ; the apex compressed at the sides ; the first segment much 

 narrower than the second. 



Hab. Borneo (Sarawak). 



G-en. Trieogma, Westw, 



1. Trirogma c^rulea. 



Trirogma caerulea, Westw. Trans. Ent. Soc. Lond. iii. 225 3 . Arcana, 



Ent. ii. p. 66 ? . 

 Hab. Singapore. Northern India and Madras. 



2. Trirogma prism atica. T. fulgide cseruleo-viridis ; abdomine pur- 

 pureo et violaceo lavato. 



Male. Length 6 lines. Brilliant green, the abdomen vivid purple or 

 violet in different lights, highly prismatic ; the palpi and mandibles 

 white, the latter ferruginous at their apex ; the scape of the antennae 

 green with purple reflexions, the flagellum fuscous ; the face below 



