Mr. G. J. Arrow on Rutelid Coleoptera. 399 
In the male, however, the elytra are almost black, shining 
but quite unmetallic. In both there is a similar pattern of 
yellow scaly hairs which cover the pygidium and under 
surface. It is quite a small beetle, about 8 millimetres long. 
The following two new species of Pseudosinghala are 
remarkable for colour-differences between the two sexes. 
These are of the nature which J have previously described as 
general in the Anomaline, viz. the males are invested with a 
hue superimposed upon that of the females. 
Pseudosinghala regalis, sp. n. 
Curta, robusta, testacea; corpore antice et subtus brunneo, tibiis 
tarsisque fere nigris, maris capite, prothorace, scutello, pygidio, 
corpore subtus femoribusque igneo-metallicis, feminze corpore 
subtus femoribusque solum leviter eneis; capite dense rugoso, 
clypeo late arcuato ; prothorace valde convexo, grosse punctato, 
postice sat disperse, lateribus margineque postica fortiter ac 
equaliter arcuatis, hac utrinque impressa, angulis anticis acutis, 
posticis valde obtusis; scutello late cordiformi, vix punctato ; 
elytris brevibus, testaceis, grosse lineato-punctatis, punctis ocel- 
latis, macula transversa basali, scutellum amplectente, sutura, 
plagisque humerali et postica obliqua nigris, punctis flavis duobus 
(nonnunquam bisectis) parvis ad suturam ante medium; pygidio 
magno, grosse punctato; tibiis anticis fortiter bidentatis, pedum 
4 anteriorum unguibus externis fissis; corporis subtus lateribus 
parce pilosis. 
Long. 85-10 mm. 
Hab. Penang. 
This is the largest Pseudosinghala yet known. It is stout 
and globular, with the sides of the thorax more strongly 
curved than in any other species known to me. The elytra 
in both sexes are of a rich testaceous colour, with a small 
yellow spot (sometimes divided) on each side of the suture 
before the middle, and nearly the entire margin black, to- 
gether with a transverse patch round the scutellum, which 
may extend right across the elytra. ‘The difference between 
the sexes is that, while in the female the head, thorax, and 
scutellum are of a very dark brown colour, in the male they 
are suffused with a brilliant fiery lustre. The pygidium of 
the latter also has a similar lustre, whereas in the female it 
is, with the rest of the abdomen, unmetallic red. 
A series of specimens in the British Museum were collected 
by the late Mr. Lamb, and the species is also in Mons. R. 
Oberthiir’s collection. 
