590 Mr. D. Sharp and Mr. F. Muir on the Comparative 



Eucliirus 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). Basal- 

 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 Jioricola. 



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 Jiorticola. 



The aedeagus is short and broad, and the proportions generally 

 similar to Anoinala ; there appears to be a large chitinisation of 

 the base of the median lobe. 



Spilota regina (PI. XLV figs. 20 and 20a). 



Median lobe normal in shape and size, but the internal sac has a 

 strong chitinous plate armed with spines near the apex (/>), 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 S. 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 ass imilis (PI. 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- 



