44 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1963 



and collected approximately 14,000 insects. Although this material 

 has as yet been examined only cursorily, 1 family (Isometopidao), 

 12 genera previously unknown from the island, and numerous new 

 species have been identified. The number of species of aquatic 

 beetles known from Puerto Rico has been increased from approxi- 

 mately 40 to 75, and larvae of about 35 of these have been established 

 by rearing or association. The number of aquatic beetle species known 

 from the Virgin Islands has been tripled. 



During 2 weeks in August Dr. Spangler collected also in South 

 Dakota, Wyoming, and Montana, concentrating in the numerous and 

 unusual habitats in Yellowstone National Park and vicinity. He col- 

 lected approximately 10,000 insects during this trip. Although this 

 material has not yet been thoroughly examined, several new species 

 of water beetles have been found. In several rare genera the number 

 of specimens present in the national collection has been doubled. In 

 addition, rare and undescribed larvae of several species have been 

 found and associated with their adults. 



At the beginning and end of the year Dr. Spangler in company with 

 other members of the staff made day-long trips to collecting areas in 

 Maryland and West Virginia. A trip to the vicinity of Oakland in 

 Garrett County, Md., yielded several rare species for the first time 

 and one apparently new species. 



Dr. Oliver S. Flint, Jr., associate curator of insects, continued his 

 research on caddisflies. This year his major collecting effort came 

 during the latter part of July when he went to Jamaica and again to 

 Puerto Eico. On the island of Jamaica he obtained well over 1,000 

 specimens of caddisflies belonging to about 20 species. Almost all 

 these species are new to science, and one represents a genus new to the 

 Antilles. The collection of nearly 5,000 specimens from Puerto Rico 

 included an imdescribed caddisfly belonging to a genus unrecorded 

 from that island. 



During the latter part of May, Dr. Flint, accompanied by William 

 D. Field, made a 12-day trip through the Jefferson and Monongahela 

 National Forests in Virgmia and West Virginia to Bluestone State 

 Park in West Virginia. Little collecting of aquatic insects has been 

 done in this area. 



A 12-day collecting trip for butterflies was made late in August by 

 William D. Field, associate curator of insects, along the Blue Ridge 

 Parkway in Virginia, North Carolina, South Carolina, and Tennessee 

 to the Great Smoky Momitains National Park. The 392 specimens 

 obtained include species which contribute importantly to knowledge 

 of these insects. As mentioned above, Mr. Field also accompanied 

 Dr. Flint on a trip into the mountains of western Virginia and eastern 

 West Virginia in the vicinity of Lewisburg, W. Va. Here he found 



