The Heleidae of California, by W. W. Wirth. University of California Publications in Entomology, Vol. 9, No. 2. Pp. 95–266, $2.00, 1952. - Cynipoiden (Hym.) 1905–1950: By Lewis H. Weld, 1952. 350 pp., paper cover. Privately processed. For sale by the author at 6613 N. Washington Blvd., Arligton, Va., U.S.A. Price $5.00. - Guide to the Insects of Connecticut. Part VI. The Diptera or True Flies. Fifth fascicle: Midges and Gnats. Tendipedidae (Chironomidae), by O. A. Johannsen and Henry K. Townes; Heleidae (Ceratopogonidae), by O. A. Johannsen; Fungivoridae (Mycetophilidae), by Frank R. Shaw and Elizabeth G. Fisher. Pp. 255; 38 plates. Connecticut State Geological and Natural History Survey Bulletin No. 80. 1952.

1952 ◽  
Vol 84 (10) ◽  
pp. 322-324 ◽  
Author(s):  
W. R. Thompson ◽  
J. R. Vockeroth ◽  
O. Peck ◽  
J. R. Vockeroth
Keyword(s):  
Natural History ◽  
University Of California ◽  
Paper Cover ◽  
History Survey

scholarly journals Descriptions of Nearctic Caddis Flies (Trichoptera)

1938 ◽  
Vol 21 (1-8) ◽  
pp. 101-183 ◽  
Author(s):  
T. H. Frison
Keyword(s):  
New Species ◽  
North America ◽  
Natural History ◽  
Aquatic Insects ◽  
Initial Report ◽  
Illinois Natural History Survey ◽  
Caddis Flies ◽  
History Survey

This paper, describing new species of caddis flies from Illinois and other localities in North America, is the initial report on a project of the Illinois Natural History Survey pertaining to these aquatic insects.

scholarly journals Third Report on a Forest Survey of Illinois

1926 ◽  
Vol 16 (1-7) ◽  
pp. 1-102 ◽  
Author(s):  
Clarence Telford
Keyword(s):  
Natural History ◽  
The State ◽  
Soil Types ◽  
Forest Survey ◽  
The Common ◽  
History Survey

The State Natural History Survey has undertaken an inventory of the forests, and the purpose of this report is to present the area and condition of the forests of Illinois, and to show the productiveness of the common soil types in terms of forest crops.

NEW SPECIES OF EPHEMERELLA FROM ILLINOIS: (Ephemeroptera)

1947 ◽  
Vol 79 (11-12) ◽  
pp. 232-236 ◽  
Author(s):  
B. D. Burks
Keyword(s):  
New Species ◽  
Natural History ◽  
The Other ◽  
Illinois Natural History Survey ◽  
Three New Species ◽  
History Survey ◽  
Species Study

This paper presents descriptions of three new species of Ephemeroptera from Illinois, all belonging to the genus Ephemerella. These are forms segregated from material in the Illinois Natural History Survey collection; the types are deposited in that collection. Two of these species are closely related to the genotype, E. excrucians Walsh, and it was thought for some time that one or the other of them would prove to be that species. Study of the lectotype of excrucians showed, however, that both of these species are recognizably distinct from excrucians.

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