. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST., 9: 1996 97 ocelli on the hind wings of the males. Thomson (1973) identified two distinct types of valve in the male genitalia, which he called the eastern and western types. These are illustrated in Fig. 1 for reference, although intermediate or transitional forms also occur. Thomson went on to correlate valve type with geographic distribution, and his map (Fig. 2 Thomson, 1987) shows that Stara Planina lies in an area where the eastern valve type is to be expected. The valve types found a
. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST., 9: 1996 97 ocelli on the hind wings of the males. Thomson (1973) identified two distinct types of valve in the male genitalia, which he called the eastern and western types. These are illustrated in Fig. 1 for reference, although intermediate or transitional forms also occur. Thomson went on to correlate valve type with geographic distribution, and his map (Fig. 2 Thomson, 1987) shows that Stara Planina lies in an area where the eastern valve type is to be expected. The valve types found at Topli Do are illustrated at Fig. 3 with examples from the wider area of the Balkans shown at Fig. 4. It comes as no surprise to note that they are of the eastern type, nonetheless, they are published to assist future research. Brakefield's extensive work (1984) on hindwing eyespot development is summarized in Kudrna (1990) and Fig. 5 shows the standard notation used in this connection. In the sample of 90 males collected in the vicinity of Topli Do, 72 (80%) have two spots in the splay configuration (S2 type). This correlates well with a sample of 124 males collected in the vicinity of Pristina, Jaksic's home town, amongst which 74 (60%) were found to be of the S2 type. There was no correlation between the valve type and the eyespot pattern in either population. It was judged that the two populations are morphologically indistinguishable. Conclusion The ancient relict area of Stara Planina holds an impressive diversity of flora and fauna. On this expedition we took a total of 94 species, including no less. Figure 2. The distribution of valve types in Maniola jurtina, showing distribution of 'eastern' (A), 'western' (#) and 'transitional' (O) male genitalia Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original w
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