24 PROCEEDINGS OF THE ACADEMY OF [Feb., 



Body and limbs immaculate; probably discolored," yellowish 

 brown. Eyes blackish chestnut brown. Tegmina and wings hya- 

 line, strongly iridescent, except very narrowly along the costal 

 margin of the tegmina, which portion, not more than a third the 

 distance between the marginal and mediastine veins proximad, is 

 opaque, yellowish brown. 



Length of body 24.5, length of pronotum 5.7, length of pronotal 

 collar 2, greatest width of pronotum 1.8, length of tegmen 16.5, 

 width of marginal field of tegmen .8, length of wing 16.3, length 

 of cephalic femur 5.8, length of caudal metatarsus 1.7 mm. 



The type of this interesting species is unique. 



Xanthomantis flava Giglio-Tos. 



1915. X[anthomantis] flava Giglio-Tos, Bull. Soc. Ent. Italiana, XLVI,p.53. 

 [ ? , Borneo.] 



Singapore, British Straits Settlements, Malay Peninsula, (from 

 C. F. Baker), 1 9 . 



The striking yellow coloration of the entire marginal fields of 

 the tegmina and of the distal portion of the entire marginal fields 

 of the wings, which are otherwise clear hyaline and iridescent, gives 

 this specimen a close resemblance to individuals of certain species 

 of the Neuropteroid genus Mantispa. Small lateral flecks of purple 

 are found on the facial scutellum, this color appearing as a hair- 

 line, margining the opaque marginal portions of the tegmina and 

 wings. 



The strong lamellate medio-longitudinal carina of the pronotum 

 is completely and suddenly cleft by the supra-coxal transverse 

 sulcus, which carina only extends a brief distance on the collar 

 in the specimen before us. Counting from the base to the apex of 

 the cephalic tibia, the spines of the ventro-external margin increase 

 in length distad, except the second and sixth, which are very long 

 and the tenth which is slightly longer than the eleventh and last 

 spine. Though the cerci are damaged, the last joint is seen to be 

 nearly five times as long as its greatest width, the preceding joints 

 .slightly longer than wide. Giglio-Tos has not mentioned this 

 feature and the spine formula for the cephalic tibia would appear 

 to have been counted from the apex proximad, the type having 

 two instead of three small spines between the second and sixth. 



" The feet are greenish, which leads us to believe that, in life, this insect may 

 be pale green. 



