r)4G Mr, K. Aii(l(MSPii on neni Petal in. 



the anterior margin raised and widely emargiiiate, nearly 

 half as wide again as the posterior and lateral margins. 

 Scutellnm short and transverse, almost smooth, much 

 narrower than the pronotnm. Median segment shining and 

 almost smooth, broadened posteriorly, the dorsal surface 

 only about one-third of the length of the pronotnm, obliquely 

 truncate posteriorly, the surface of the truncation raised 

 along the median line. Abdomen shining and sparsely 

 punctured, mucli broader than the thorax, the basal segment 

 with a patch of long cinereous liairs in the middle : second 

 segment with nine strong ti'ansvcrse carinse, higher at the 

 apex than at tlie base ; pygidiuni narrow ajul transversely 

 striated at the base, sharply narrowed before the base of the 

 almost vertical posterior truncation, the surface of which is 

 twice as long as broad, smooth, the dorsal plate much 

 shorter than the ventral, with a notch on each side at the 

 base, the ventral plate emarginate at the apex and serrate 

 at the sides. Fifth ventral segment longitudinally striated. 

 Intermediate tibiae broad and strongly spinose. 



Hab. Aru (Elgner). Sent by Mr.Froggatt. 



This belongs to the grou]) of T. serr/f/er. Sharp, and is 

 nearest to T. ceJebensis, Turn., from Avhich the male differs 

 in the sparser puncturation, in which it approaches more 

 closely to T. oUvarens, Turn. From both of these species 

 it difiers in the truncation of the hypopygium. The female 

 differs from ca/vvs, Turn., in the narrower pygidium, the 

 narrower raised median space on the front, aiid in the shape 

 of the scape, which is curved, not elhoM ed as in caJvvs ; the 

 scul})ture is also different. The raised frontal area is also 

 nanower than in celehensis. Turn., and with a less sti'ongly 

 marked median carina. 



LXIV. — Briff Did.gnosfis of J'Ji(fJ/t neiv Petalia, v:i(/i a List of 

 the knovn forms of the iienus. V>y Knud AnderSEN. 



Petalia tvagala^ sj). n. 



As P. javanica (p4 large), but free portion of tragus lingu- 

 late ("tongue-shaped"), i. e. inner as well as outer margin 

 passing in a smoothly rounded curve into upfjer margin (in 

 P. javamca corresponding ))oition of tragus seniilunate, /. e. 

 inner margin joining upper in a sharp angle) ; skull a little 

 heavier, premolars and molars consj»icuously larger. Skull 



