590 Mr. D. Sharp and Mr. F. Muir on the Comparative 
Luchirus longimanus. 
Median lobe small, supported by two thin chitin strips near base, 
continuing into the basal-piece as two median struts. Lateral 
lobes long, pointed, with the points strongly curved near tips and 
slightly flattened ;} connected at base on dorsal and ventral side, 
otherwise free (no connecting membrane between them). LBasal- 
piece tambour-shape. Internal sac large and complex, covered with 
short hair, but bearing no chitinous armour. 
This curious insect shows no approach to Amphicoma ; 
but apparently the aedeagus is but little different from 
Aclopus, and the forms placed early in the Melolonthine 
series. 
Anisoplia floricola. 
The lateral lobes are very long, touching for the greater part 
of their length, but not consolidated together. Basal-piece 
medium size, tambour-shape, with a small ventral plate. Basal 
piece and lateral lobes consolidated together, so that their real 
line of junction is difficult to distinguish. Internal sac without 
chitinous armature. 
Phyllopertha horticola. 
The aedeagus is short and broad, and the proportions generally 
similar to Anomala; there appears to be a large chitinisation of 
the base of the median lobe. 
Spilota regina (Pl. XLV figs. 20 and 202). 
Median lobe normal in shape and size, but the internal sac has a 
strong chitinous plate armed with spines near the apex (b), and has a 
pair of strong chitinous processes (a) on the apex; this armature 
prevents the sac from being entirely evaginated, and makes it appear 
to be part of the median lobe. A similar thing takes place in A. 
marginipennis, where the plate bearing spines is very large and looks 
like the median lobe, and can only be understood by dissecting it 
away from the tegmen. In SN. regina the lateral lobes are large and 
asymmetrical, the left being widened and curved at apex. Basal- 
piece tambour-shape, with a small ventral plate (vp). 
Anomala assimilis (Pl. XLV fig. 19). 
Median lobe small but distinct, the basal part being chitinised 
and prolonged into two median struts. Lateral lobes short and 
broad, meeting together at their bases on the dorsal side (but no 
consolidated together) and wide apart on the ventral side. Basal- 
