254 [December, 



furnished along their inner surfaces in both sexes with soft black hairs of moderate 

 lengths, and are armed on their outer sides and ends with long black spines ; the 

 inner extremities of the tibiae, and under-surfaces of tarsi, are clothed like the other 

 tarsi with golden hairs. 



This interesting fly seems to be widely distributed on the British 

 coast, but is of rare occurrence. It lives among the remains of sea 

 weed and other marine rejectamenta above high water mark. The 

 first specimens I saw were kindly sent to me for identification by 

 Mr. W. H. Harris of Cardiff,* who captured them on the Welsh 

 coast, in September, 1884. He found another pair near Cardiff this 

 last summer (1885), and also a single specimen at Ilfracombe in July. 

 I captured a pair myself ( ^ & ? ) at Douglas, Isle of Man, on June 

 20th, 1885, in company w^ith numerous specimens of Fucellia fucorum, 

 Scatina litorea, and other marine flies ; but though I searched carefully 

 on many subsequent days, I never met with another individual. 



Bradford, Yorks. : 



November, 1885. 



DESCRIPTIONS OF THREE NEW SPECIES OF LYC^NIDM. 



BY UAMILTON H. DEUCE, F.E.S. ' 



lOLAUS SILARUS, 01. Sp. 



$ . Above. Primaries brilliant purple-blue, with the apex, costal and posterior 

 margin black. Secondaries bicaudate, brilliant blue, with the costal margin broadly, 

 and the posterior margin narrowly, black. The lobe, with a black margin, reddieh- 

 carmine, shaded with violet. A black patch between the sub-median nervure and 

 the 3rd median nervule containing a small indistinct red spot, also a small black 

 spot between the 2nd and 3rd median nervule containing an indistinct red spot. 

 Under-side glossy white, posterior-wing with a distinct sub-marginal straight red 

 linear band running from above the apex into a red spot between the 2nd and 3rd 

 median nervules. The lobe red, shaded with violet, and a black spot. There is also 

 an irregular broken black line above the lobe, extending to the 2nd median nervule, 



? . Above. Primaries violet-blue, whitish at the junction of the 2nd and 3rd 

 median nervules with the median nervure. The apex, costal and posterior margin 

 greyish- black. Secondaries violet-blue, with the apex, costal and posterior margin 

 greyish-black, crossed beyond the middle by an irregular black band, bordered 

 between the sub-median nervure and the 2nd median nervule with brick-red. The 

 lobe reddish-carmine. 



Antennee black. Palpi black above, white below. Legs white. 



Expanse, S , li i"- 5 ? » H in. 



Hah. : Delagoa Bay, East Africa. Mus. Druce. 

 This species is allied to I. Julus, Hew., from which it may be 

 easily distinguished by the unbroken linear band on the under-side of 

 the secondaries, and the spotless white of the primaries in both sexes. 



• The author of some interesting papers, with excellent illustrations, upon the teeth of flies, 

 published in " Science Gossip." 



