112 ENTOMOLOGICAL NEWS. [March, '13 



certain bees, with a short term of flight and already exhibit- 

 ing flower fidelity, have acquired the habit of restricting their 

 visits to common flowers, which offer a great abundance of 

 food materials. Accessory factors are small size, time of 

 flight, length of flight, weak flight, vicinity of nests, and the 

 number of bees. On the other hand, no satisfactory evidence 

 has ever been presented to show that oligotropism is an effort 

 on the part of bees to avoid competition. If there was a 

 scarcity of pollen sufficient to promise severe competition it 

 would appear that it would be a disadvantage to any species of 

 bee to restrict its visits to one kind of food plant. 



A new Erycinid from South America (Lepid,). 

 By LEVI W. MENGEL, Reading, Pa. 



Hermathena quinquemaculata, n. sp. 



Expanse of spread insect, 1.03 in. Distance from' apex of anterior 

 wing to base, .56 in. Length of body, .41 in. 



Color, white, with the following exceptions : Apex of the anterior 

 wing, black. There is a black spot on the middle of the exterior mar- 

 gin. 



The posterior wing is white, with a small black 

 spot on the apex, another in the middle of the 

 exterior margin and a third towards the anal 

 angle. 

 The base of the fore wing is black. The 



head ' collar and sca P ulae are black - The a bdom- 

 inal segments are white, except the anal ex- 

 tremity, which is black. Legs, white. The antennae have black knobs, 

 otherwise white. 



Type. Collection Mengel. Habitat. Neiva, U. S. Colum- 

 bia. 



The Suffert Collection of Butterflies (Lep.) 



The large collection of African butterflies, with its numerous types, 

 formed by the late Herr E. Suffert, of Berlin, has passed into the 

 Joicey Collection. Entomologists are invited to compare their speci- 

 mens with the types.. J. J. Joicey, The Hill, Witley, Surrey. (The 

 Entomologist, London, Dec., 1912.) 



