1904.] NATURAL SCIENCES OF PHILADELPHIA. 673 



blunt; subgenital plate acute, with a distinct median sulcus. Caudal 

 femora slender, falling slightly short of the apex of the abdomen, the 

 dorsal and dorso-lateral carinse sparsely serrato-dentate, genicular 

 lobes spinose, genicular spine acute; tibise slightly sinuate, the spines 

 of the internal margin longer than those of the external margin; meta- 

 tarsi about equal to the remaining tarsal joints in length, dorsal carina? 

 serrato-dentate. 



General color raw umber; the head inclining toward cinnamon, 

 eyes vandyke brown; tegmina with a preapical hyaline spot on both 

 the cephalic and caudal margins; caudal femora wood brown with 

 three obscure annuli of darker brown; caudal tibiae of the general tint 

 with several obscure annuli of wood brown. 



Measurements. 



Length of body, 30 mm. 



Length of pronotmii 4.2 " 



Length of tegmina, 22 " 



Length of caudal femora, 15 " 



The t3rpe is unique. 



Erianthus malcolmi Bolivar. 



1903. Erianthus Malcolmi Bolivar, Boletin Soc. Espan. Hist. Nat., Ill, p. 

 302. [Malacca, Kwala, Lumpur, Strait Settlements.] 



Trong, Lower Siam. (Dr. W. L. Abbott.) [U. S. Nat. Mus.] Three 



males. 



These specimens fully agree with Bolivar's description, except that 



the face, the lateral lobes of the pronotum and the anal area of the 



tegmina are suffused with dull greenish, which is probably due to the 



condition of the specimens. 



Section Erucii. 



ERUCIUS St&l. 



1875. Erucius Stal, Bihang till K. SvenskaVetens.-Akad. Handl., Ill, No. 

 14, p. 36. 



Type. — Mastax agrionoides Haan. 



Erucius vitreus (Wcstwood). 



1845. Mastax vitrea Westwood, Arcana Entom., I, p. ICO, PI. 2G, fig. 2. 

 [Java.] 



Goenong Soegi, Lampong, Sumatra. October-November, 1901. 

 (A. C. Harrison, Jr., and Dr. H. M. Hiller.) [A. N. S. Phila.] Two 

 males, one female. 



It is worthy of note that the specimens examined by Brunner^" and 



10 Ahhandl. Senckenb. Naturf. Gesellsch., XXIV, heft 2, p. 227. 



