108 REPORT OF NATIONAL MUSEUM, 1890. 



Dosinia fibula Rve., Porto Grande, St. Vincent Island. 



Diplodonta rotundata Mull., Fayal, Azores Islands. 



Donax rugosus Linn., Porto Grande, St. Vincent Island ; St. Paul de Loanda. 



Mactra Adansoni Phil., Porto Grande, St. Vincent Island. 



Loripes lacteus Linn., Porto Grande, St. Vincent Island. 



Tellina Madagascariensis Gmel., Porto Grande, St. Vincent Island. 



Tellina incarnata Linn., Fayal, Azores Islands. 



Insects. — The Department of Insects received a collection from 

 southern and western Africa. It arrived in very good condition, the 

 lepidoptera packed in papers, and the remainder of the material in 

 alcohol. The collection comprised some 250 species, most of them 

 represented in fair series and representing the different orders in the 

 following proportions : 



Lepidoptera (40 species). Hymenoptera (25 species). 



Coleoptera (74 species). Diptera (7 species). 



Orthoptera (4(5 species). Myriapoda (10 species). 



Pseudoneuroptera (10 species). Arachnida (12 species). 

 Hemiptera (19 species). 



The Museum collections are poor in the fauna of this region, and 

 nearly all the species were heretofore unrepresented. The Hymenop- 

 tera have been sent to Mr. W. F. Kirby, of the British Museum j the 

 Orthoptera to M. Henri de Saussure, of Geneva, Switzerland ; the He- 

 miptera to M. A. Moutandon, of Bucharest, Koumania, and most of the 

 Coleoptera to Dr. David Sharp, of Dartford, England. The majority of 

 the Lepidoptera were determined in Washington, thanks to Mr. Boland 

 Trimen's recent monographs of South African Lepidoptera. The re- 

 mainder of the Lepidoptera have been sent to Rev. W. J. Holland, of 

 Pittsburgh, Pennsylvania. The Myriapoda are in the hands of Prof. 

 L, M. Underwood, of Syracuse, New York ; the Arachnida have been 

 referred to Dr. George Marx, of Washington, and the few Diptera have 

 not yet been disposed of. 



The following statement has reference to the Lepidoptera and Cole- 

 optera, and three species of Hemiptera, which have been determined 

 in Washington: 



LEPIDOPTERA. 



Suborder Rh5pai.ocera. 



Family Nymphalida;. 



Danais chrysippus L., var. dorippus Klug. 



Roland Trimen, South African Butterflies, vol. i, London, 1887; 9 specimens 

 from Congo, and 2 from St. Helena. 

 Danais chrysippus L., var. alcippus Cram. 



Trimen, loe.cit., 1 specimen, Freetown. 

 Danais plsxippus Fab., 2 specimens, Fayal, Azores. 

 Acrcea horla L. 



Trimen, loe. oil., 9 specimens, Cape Town. 

 Acrcea eucedon L. 



Trimen, loc. cit., 11 specimens, Congo. 

 Acrcea eerena Fab., var., 1 specimen, Congo. 



