1903.] NATURAL SCIENCES OF PHILADELPHIA. 715 



Deroplatys angustata Westwood. 



1845. Deroplatijs angiLstata Westwood, Arcana Entomologica, I, p. 34, 

 PL 9, fig. 2.' [Java.] 

 Olio male; Goenong Soegi, Lampong, Sumatra. October-Novem- 

 b(u-, 1901. (A. C. Harrison, Jr., and Dr. H. M. Hiller.) [A. N. S. 



Phila.] 



This specimen agrees exactly in the shape of the pronotum with 

 the specimen figured by Westwood. 



Genus PHYLLOTHELYS Wood-Mason. 



1877. Phyllothelys Wood-Mason, Trans. Entoni. Soc. London, 1877, p.xviii. 

 Xype. — Phyllocrania ivestwoodi Wood-Mason. 



Phyllothelys mitratum n. sp. 



Type: V (immature); Trong, Lower Siani. (Dr. W. L. Al)bott.) 

 [Cat. No. 6,972, U. S. N. M.] 



Closely allied to P. paradoxum Wood-Mason,^* but differing in the 

 form of the facial shield and clypeus, and the shorter head. 



Size rather small ; form elongate, bacilliform. Head elongate ; frontal 

 process almost twice the length of the remainder of head, depressed, 

 superior surface bearing a very distinct median foliaceous longi- 

 tudinal keel, lateral borders sinuate and bearing a distinct sub-basal 

 and submedian angular lobe, lower surface with a median thickened rib; 

 eyes sub-ovoid, apex interiorly; facial shield slightly broader than 

 high, inferior margin evenly and slightly arcuate, superior margin 

 decidedly arcuate, surface bearing two blunt longitudinal carinse; 

 clypeus transverse, slightly broader superiorly than interiorly, lateral 

 margins sinuate, inferior margin subtruncate. Pronotum very slender, 

 subequal, slightly expanding posteriorly; anterior and posterior bor- 

 ders evenly rounded ; lateral margins sparsely denticulate ; supracoxal 

 lobes very slightly marked ; median portion of the entire pronotum 

 bearing a faint longitudinal carina. Mesonotum and metanotum 

 slightly depressed. Abdomen strongly depressed, greatest width at 

 the fifth and sixth segments. Supra-anal plate transverse, the apex 

 rectangularly produced and bearing a short longitudinal median carina. 

 Cerci short, not exceeding the supra-anal plate, fusiform, depressed, 

 apex acuminate. Subgenital plate transverse, evenly arcuate. An- 

 terior coxffi slender, but slightly shorter than the pronotum, trigonal 

 in section, the inferior margin very weakly spined; femora slightly 

 longer than the coxae, slender, superior margin straight, external 

 margin with six spines, two of which are smaller than the others 



IB Jour. Asiaf. Soc. Bengal, LIII, Pt. 2, p. 209, PI. XIT, fig. 3. 



