COVER: Photo of Colias eurytheme male supplied by John H. Masters of specimen in the collection of Dr. Mance Brackney of Minneapolis, Minn.; collected in Hennepin County, Minn. Dorsal and ventral views are shown. The specimen appers to be normal except for the absence of all black pigmentation. This is the same specimen shown in J. Lepid. Soc. 22:158, 1968.
IN THIS ISSUE
Date of Publication: 1973
| Latitudinal gradients in species diversity of the new world swallowtail butterflies | Frank Slansky, Jr. | |
| Lack of melanism in Colias | John H. Masters | |
| A population study of Euptychia hermes in northern Florida | Thomas S. Kilduff | |
| Limenitis weidemeyerii angustifascia x L. astyanax arizonensis = (?) ab. doudorofii (Gunder) 1934 | E. M. Perkins, Jr. and John S. Garth | |
| A new subspecies of Gonepteryx amintha (Pieridae) from Yunnan, mainland China | Yuri P. Nekrutenko | |
| Reduction of abdominal scales of the Monarch butterfly imago as a result of cauterizing the Abd PPM of the pupa | F. A. Urquhart | |
| Some techniques for the rearing of Megathymus larvae | Ronald S. and Dale Wielgus | |
| Concerning Heliconius cydno aberration "larseni" Niepelt | John H. Masters | |
| Polymorphism in two species of Alaskan Boloria | C.D. Ferris | |
| A new species of Nephelodes Guenee from the Great Basin | John S. Buckett |
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