Longicornia Malay una. 365 



considerable number to the list. Although there is a sufficiently 

 natural resemblance running through the whole of the species, so 

 that they may be recognized at a glance, we feel our ideas of the 

 generic boundary somewhat disturbed when we observe the great 

 discrepancy which exists if some of the species be compared with 

 others, for example, G. picta with G. miles, or G. Vesla with G. 

 Delia. Nevertheless there appear to be no characters by which 

 a satisfactory separation may be made. The division of the species 

 by intervening lines, which I have made in the attempt to indicate 

 their affinities, is one chiefly dependent on colour, and colour in 

 this genus, so far as it depends on ornamentation, is to a certain 

 extent variable. In the species whose trophi I have examined 

 with the hope of finding some reliable characters, the labium was 

 more or less hexagonal, its palpi arising from a little within the 

 two lateral angles, the last joint being fusiform and pointed, but in 

 G. citrina I found the labium ovate, with its palpi very short, and 

 the last joint very stout and broadly truncate. In two nearly 

 allied species, however, — G. spilota and angerona, — the palpi are 

 of the normal form. The dorsal extremity of the anal segment 

 of the abdomen of the males is often furnished with two pro- 

 cesses, varying in size, close together, or divergent ; these and the 

 sedeagus might perhaps furnish reliable characters for the discri- 

 mination of closely allied species. 



Many of the Glenece are very striking and handsome in- 

 sects. Mr. Wallace informs me that they are found in sunny 

 glades in the forests, settling on leaves, rarely more than one 

 individual being seen at a time, and they fly off rapidly when 

 disturbed. They are almost entirely confined to the Malayan 

 region and to West Africa, none, so far as I know, being found 

 in South Africa* or in Australia; but from the former region 

 they extend to Northern India, Chinaf and Japan, although in 



* A nearly allied genus, however, distinguished by its antennae gradually 

 thicker towards the apex, and its abdomen composed of segments nearly equal 

 in length and the small size of the interfemoral process of the basal one, seems 

 tolerably abundant in species — although very rare as to individuals — in 

 Natal and at the Cape. I propose to call it " Blepisanis ;" the type is Sa- 

 perda Bohemani. It will include several new species, which I hope to publisli 

 very shortly ; one of them has a remarkable spine on the second abdominal 

 segment. 



f A species from Northern China, published by Mr. W. Wilson Saunders 

 (Glenea Fortunei), has been recently separated from that genus by Mr. Bates 

 under ihe name of Paraglenea ; a second species from Formosa was described at 

 the same time (Proc. Zool. Soc. 1866). 



