34 KEPOBT OF NATIONAL MUSEUM, 1910. 



A joint monograph on the mosquitoes, family CuHcidae, by Dr. 

 L. O. Howard, curator, Dr. Harrison G. Dyar, custodian, and Mr. 

 Frederick Knab, of the Bureau of Entomology, was completed. Mr. 

 J. C. Crawford, assistant curator, continued his studies of the hymen- 

 optera. An important jniblication by Mr. Nathan Banks, custo- 

 dian, consisted of directions for collecting and preserving insects, 

 issued as a bulletin, which replaces the well known work by Prof. 

 C. V. Riley, now become in large part obsolete. 



Insects to the number of over 9,000 were borrowed by specialists 

 during the year, the more important loans having been as follows: 

 Bees and wasps to Dr. H. T. Fernald, of Amherst, Massachusetts, 

 who is working up the genus Bomhus and the subfamily Aporinte; 

 bees of the genus Ceratina to Mr. H. S. Smith, and flies of the family 

 Sarcophagidfe to Mr. W. R. Thompson, both of the Gipsy Moth 

 Parasite Laboratory, Melrose Highlands, Massachusetts; and hemip- 

 tera of the subfamily Triozinas to Mr. C. F. Baker, of Pomona College. 

 There were also sent to Mr. William Schaus, at London, England, 

 for study and comparison, a selection of about 5,000 butterflies 

 from the important collection which he has presented to the Museum. 

 Among persons not connected with the Museum who spent more 

 or less time in the study and examination of the collections of 

 insects may be mentioned Mr. Nicolas Kourdumoff, of the Univer- 

 sity of Kief, Russia; Dr. T. F. Dreyer, of Cape Town, South Africa; 

 Dr. Arthur Neiva, of the Instituto Oswaldo Cruz, Rio de Janeiro, Bra- 

 zil; Mr. W. S. Regan, of the Massachusetts Agricultural College; 

 Prof. J. B. Smith, of Rutger's College; Mr. W. R. Thompson and Mr. 

 H. S. Smith; Dr. Carroll Fox, of the Hygienic Laboratory, Washing- 

 ton; Mr. C. R. Ely, of Wasliington; and Mr. A. B. Gahan, of College 

 Park, Maryland. 



MoUusks. — The most noteworthy addition of the year was a collec- 

 tion of about 1,000 land shells from the Smithsonian African Expedi- 

 tion, obtained chiefly on the slopes of Mount Kenia by Dr. E. A. 

 Mearns. Although the number of species is not large, it is thought 

 that, coming from a region not previously explored, a good propor- 

 tion may be new. The Philippine Bureau of Science transmitted for 

 identification a collection of land and fresh water shells, from which a 

 series is to be retained by the Museum, and Father Antonio Arnalot, 

 of Davao, Mindanao, contributed over 400 mollusks, also from the 

 Philippines. Cotypes of 41 species of Australian mollusks were pre- 

 sented by Dr. J. C. Verco, of Adelaide, South Australia; and a set of 

 Peruvian shells, including the types of three new species, collected by 

 the Hon. Hiram Bingham, was obtained through Dr. L. J. Cole, of the 

 University of Wisconsin, in return for assistance in the naming of 

 material. During a journey in Mexico Mr. C. R. Orcutt, of San Diego, 

 California, secured a number of interesting land shells, several not 



