on the Upper Amazons. 5729 



at Moyobamba, on the eastern slopes of the Ancles. For many days 

 1 revelled amongst these splendid productions. There was little else 

 to be found in the dell ; no Coleoptera ; a short distance off, how- 

 ever, towards the denser forest, I found a grand new Anisocerus on a 

 felled tree; it is a very large species, coloured and tubercled like the 

 Curculiones of the genus Cratosomus, and is doubtless new to Science. 

 I also captured, on the wing, a charming little gaily-coloured Saperda, 

 and a new Agra between the folds of a leaf. There was also a species 

 of dragon fly, of the genus Hetaerina, which I think is not described 

 in De Selys' ' Monograph ; ' it is allied to H. aenea of De Selys. Near 

 the same felled tree where I found the Anisocerus 1 captured a very 

 curious Elater, yellow and black, with flabellate antennae, neatly 

 retractile within a deep chink on each side of the prosternum : I 

 have two other species of the same character from Ega, and am very 

 curious to know what genus they belong to. At the same place, too, 

 I found a new species of blue Agrodes, the handsomest genus of the 

 Staphylinidae ; and, again, on a bright, sunny day, I caught a bril- 

 liant brassy species of the curious genus Taenodema, which came 

 flying rapidly near the ground, and settled on a woody stem, just as 

 the Megalopi (family Cyclica) do. All these Coleoptera, however, 

 were only single specimens; and I was much disappointed, after 

 many days' search in the same places, not to find more of them. 



In the pathways in the forest I met (as is always the case in this 

 country) with a different set of insects. I had made up my mind, 

 before I undertook this excursion, to discover further new species of 

 Papilio of the group Bolivar, Orellana, &c, and also one or two Lep- 

 talis ; in this, however, I was disappointed : I saw nothing new in the 

 genus Papilio on the whole voyage, and not a single Leptalis, although 

 six species occur at Ega at this season. Heliconiidae at Tunantins 

 were also very rare. I got one new Heliconia, and one charming 

 new Ithomia, very distinct in colouring from any, 1 think, yet known. 

 Other Ithomiae were, one or two I. Sao, Hubn., I. Vestilla, Hewits, I. 

 Fluonia, Hewits., and a species very near to I. Cyrianassa, but I am 

 inclined to think distinct ; I. Cyrianassa occurred rather commonly 

 at Fonte Boa, as it does at Para ; and this Tunantins species was 

 pretty common up the Tapajos, where the true Cyrianassa did not 

 occur. The Ithomiae, to me, are a most interesting group of 

 insects ; the species differ from each other by very slight marks ; they 

 should be studied with very minute reference to their geographical 

 site. In one district all the hundreds of individuals that occur of a 

 XV. 3 D 



