518 MR. H. DRUCE ON NEW HETEROCERA. [May 19 



Plate XXXI. 



Fig. 9. Longitudinal median dorso-ventral section through the inferior extre- 

 mity of the stem : ms, median septum, dividing the inner cavity into 

 a dorsal and ventral channel. 



10. Section of the same series, but more lateral : sp, calcareous spicules. 



11. Direct continuation of the terminal disk a into the sclerenchyma si 



(fig. 9). 



12. Transverse section through the middle of the stem. Appearance of 

 two additional lateral channels, U. 



13. The same through the lower portion of the rhachis : dl, dorsal, vl, 



ventral channel ; p, polyp-cell with two internal supports ; /, ventral 

 furrow ; ^j.«, radiaUy situated spaces. 



14. The red-coloured calcareous spicules. 



4. Descriptions of new Species of Lepidoptera Heterocera, 

 chiefly from South America. By Herbert Druce, 

 F.L.S., F.Z.S., &c. 



[Eeceived May 4, 1885.] 

 (Plates XXXII. & XXXIII.) 



The following descriptions are all taken from specimens in my 

 own collection. They mostly relate to species brought home by 

 Mr. C. Buckley from Ecuador ; to these I have added descriptions 

 of some recent acquisitions from various localities. 



Agaristid^. 

 EusEMiA, Dalmau. 



Etjsemia opheltes, sp. n. 



Primaries deep black with a metallic streak across the middle of 

 the cell, and a second wider streak on the discocellulars ; the outer 

 margin from the apex to the anal angle broadly banded with snow- 

 white : secondaries glossy deejj blue, in some lights shot with 

 greenish reflections ; the outer margin broadly banded with white 

 from the apex to the inner margin ; the underside the same as 

 above. Thorax and abdomen bluish black ; collar white ; head 

 and antennae black ; palpi and under front of thorax bright orange. 



Expanse 3| inches. 



Hab. North Burmah. 



This grand insect belongs to the E. albomarginata group of 

 Exi^emia and comes nearest E. fimhriata, Boisd., from which it is 

 at once distinguished by the broad snow-white margins to the 

 wings. 



Chalcosiid^. 



Amesia, Westwood. 

 Amesia hyala, sp. n. 



Primaries uniform dark brown, with eight white spots beyond the 

 cell, placed the same as in A. euplocoides, but without the blue 

 spots on the costal margin and at the base as in that species ; the 

 extreme ends of the nerves on the outer margin marked by a few 



