TSN 
same genus occur,') showing a wing-pattern of apparently less com- 
plication and capriciousness, which makes them appear simpler and 
consequently more original. On more exact comparison however, with 
each other as well as with the patterns in nearly related genera, 
we become convinced that we should read the series from the 
other end, starting with astrolabei (or better still with osten sackeni, 
in which the number of light spots along the front margin is .one 
more than in astrolabei, and so reaches to five) passing along C. 
biarcuata (Fig. 136), similis (Fig. 134), amabilis (Fig. 128), liturata 
(Fig. 129), to arrive at kertészi (Fig. 135), whose distal wing-half is 
almost filled up by a single, broad, dark bar, extending from fore- 
to hind margin, and only leaving a narrow hyaline halfmoon of 
white at the wingtip, the proximal wing-half in the mean time not 
showing an elaborate pattern, but only one dark longitudinal patch 
in the middle, accompanied along its fore- and hindside by a light 
streak, and separated from the distal colour-field by a light trans- 
verse bar. 
As in so many other cases, here also the simplest colour-design 
is in reality the most modified; it comes nearest to general unico- 
lourism  selfcolour). 
Starting again from Cl. ostensackeni, we may also go by rivel- 
loides (Fig. 131) and similis (Fig. 132) — while in passing we remark 
the similarity with the colour-pattern in the genus Bothrometopsa, 
belonging to tle fam. Pterocallinae —, and so come to the species 
gestroï (Fig. 130), which, though vastly differing in design from 
kertészi, still exceeds this in extent and uniformity of the dark area. 
Besides the observation, that it is possible to find a connection 
between patterns of widely different appearance, and that one pat- 
tern may be derived from the other, a second remark may be made 
viz. that in different genera, and even in subfamilies and families, 
the same series of pattern is seen constantly to return, showing the 
identical interrelation between the different links of the chain. To 
represent this phenomenon in a marked way, it is desirable to 
designate the different types of pattern with special names. 
For these names the chief motives of the pattern might be used, 
e.g. that of the paranervural rows of spots (as in Sciomyzas), that 
of the median series of spots (Seatellas), that of the straight transverse 
bars (Pterocerines), of the curved bars (Cleitamia astrolabei), of the 
numerous small spots (Coremacera) etc. 
Yet on second thoughts this principle of nomenclature does not 
1) Compare: Genera Iinsectorum, Henper, Platystominae Taf. 7. 
