1887.] 203 



two segments transrerse, metathorax rounded posteriorly. These 

 segments are all yellowish, the thoracic segments margined with black. 

 Legs, first pair short, others of moderate and about equal length. 

 Abdomen with first segment narrow, the rest of body very stout, green. 

 This larva has prominent antennje, and the eyes appear to be larger 

 than usual. 



I hope the question as to the maker of this case will soon be set 

 at rest. 



At present our knowledge of the cases of European Hydroptilidce 

 appears to be limited to the following, viz. : the three forms men- 

 tioned by Pictet (which require further elucidation) ; Stactohia (Mon. 

 Eev. Eur. Trichop., p. 516) ; Agraylea, Oxyethira, and Orthotrichia (?).* 



Carluke, N.B. : 



November, 1886. 



DESCRIPTIONS OF FOUR NEW SPECIES OF LYC^NID^. 

 BY HAMILTON H. DEUCE, T.E.S. 



Jamides petunia, 11. sp. 

 $ . Upper-side. — Allied to J. Woodfordii, but differs in that the wings are & 

 glossy slate-green colour, instead of ultramarine blue. 



Under-side : markings as in J. Woodfordii, but the wliitish lines not nearly so 

 distinct. 



The black margins on upper-side are about intermediate between J. Woodfordii 

 and J. campanulata. 



Expanse, as J. Woodfordii. Hah. : Fiji Islands ; Mus. Druce. 

 This species is interesting as being the only one of the colour in 

 the group. The four specimens I have seen do not vary in colour. 



Nacaduba dexamene, n. sp. 



(? . Upper-side : primaries and secondaries dull violet-blue, with distinctly 



lighter coloured margins, cilia light brown. 



Under-side brownish-grey, with darker markings edged with white. Primaries 



with several dots along the costal margin, an oval spot in the middle of the cell, 



and a spot curved outwards at the end, beyond which (also curved outwards) is an 



irregular band of spots, terminating at the lower median nervule, thus leaving a 



considerable space without a mark, and beyond this a marginal row of inwardly 



curved lunules. Secondaries with several irregular markings beyond the base, and 



beyond these a band of bx'oken markings running parallel with a marginal row of 



triangular lunules, the two anal lunules witli distinct black centres. 



* A short note by nie on a larva and case, which, probably, belong to what we know as 

 HydroptiUt, sparsa, appeared in this Magazine, vol. iv, p. 17 (June, 1867). The larvae made opaque 

 oval flattened cases, and concealed themselves in the crevices of stones at the bottom of the 

 stream ; I remarked that they were able to suspend themselves by a thread in the water, after 

 the manner of Lepidoptorous larva?, m the air. — ii. McL.\chlan. 



