430 Mr. G. J. Arrow on the 
will, perhaps,-surprise many planters to learn that there are 
between 15 and 20 kinds of cockchafers to be found in 
Ceylon.” The enumeration which follows shows that the 
term is used in a wide serse, which includes not only the 
Melolonthinee, but the allied subfamily Ruteline, of which 
alone L have enumerated, in two recent papers in the Ann. 
& Mag. Nat. Hist., 45 species found in Ceylon. The Ceylon 
Melolonthinze were dealt with systematically by Brenske in 
Stett. ent. Zeit. 1900 (p. 341), and a total of 48 species 
counted. In the list which follows I enumerate 70, and it is 
quite certain that this number will be largely increased by 
future collecting. My present object is less to add to the list 
than to correct its nomenclature, which is in a very confused 
state, chiefly owing to the numerous and quite worthless 
descriptions of Walker, in which generic names are applied 
at random and all characters of real importance completely 
ignored. The types of these being in the British Museum, I 
have attempted to finally remove this difficulty. 
One very large and remarkable insect included in Brenske’s 
list (Hucirrus mellyi) is now omitted. It occurs in Borneo, 
Sumatra, and the Malay Peninsula; but there can be no 
doubt, I think, that its attribution to Ceylon is merely an 
ancient error. Another Melolonthid described as Ceylonese 
( Trichoderma e-ylanica, Nonfr.) has been recently declared 
by Moser to have actually come trom South America (Deutsche 
ent. Zeits. 1912, p. 325). 
Three of Walker’s species supposed by Brenske to belong 
to this group, although unrecognizable by him, really belong 
to the Rutelid genus Anomala. They are “ Omaloplia” 
fracta, hamifera, and semicincta. Three others—Rhizotroyus 
suleifer, Plectris glabrilinea, and Plectris punctuligera—with 
the other species called Addenda by Walker (Ann. Nat. Hist. 
(4) iii, 1859, p. 219) have never been found, and may or 
may not belong to this group. 
An interesting point in connection with this part of the 
Ceylon fauna is the total absence of the Hoplimi, which are 
numerous in the northern parts of India, as well as in Assam, 
Burma, and the Malayan Region. 
The types of the new species in the following list are in 
the British Museum. Nearly all were found by Mr. E. E. 
Green or Mr. George Lewis, or by both :— 
Periserica (“ Isonychus”) ventralis, Walk. 
P. picta, Brenske. 
P. fulvostriata, Brenske. This was described by Brenske as a variety of 
the preceding, but it is quite distinct. 
