1920.] NATURAL SCIENCES OF PHILADELPHIA. 39 



I 



Sandakan, British North Borneo, (from C. F. Baker), 1 9. 

 Gigho-Tos has recently cleared away the confusion surrounding 

 this very remarkable little species." 



XVI. Caliridin^. 



1st Group, Calirides. 

 Caliris masoni (Westwood). 



1889. 7ns masoni Westwood, Rev. Ins. Fam. Mantidarum, p. 32, pi. I, 

 fig. 6. [9, India.] 



Khasia Hills, Assam (?), 1 9 . 



From comparison with the female of C. elegans Giglio-Tos, before 

 us, we believe that either one exceedingly plastic species may be rep- 

 resented, or that elegans may prove to be a depauperate race of masoni. 

 Additional material is needed to solve this problem. 



The present specimen is larger than the measurements given by 

 Westwood, almost the exact size of his figure. It has the marking 

 of the radiate field more extensive and more striate caudad. 



Length of body 40., length of pronotum 11.3, greatest pronotal 

 width 4.8, least pronotal width 3., length of tegmen 22.7, width of 

 tegminal marginal field 2.1, length of cephalic femur 12.4 mm. 



Caliris elegans Giglio Tos. 



1915. C[al^r^s^ elegans Giglio-Tos, Bull. Soc. Ent. Italiana, XLVI, p. 82. 

 I 9 ; Deli, Sumatra.] 



Sandakan, British North Borneo, (from C. F. Baker), 1 cf, 1 9. 



We find the present female smaller than the type, even smaller 

 than the measurements given by Giglio-Tos for his C. elegans from 

 Sumatra. In the present female, however, the distal subcallous 

 areas of the tegmina and the beautiful markings of the wings are 

 as shown by Westwood 's generally excellent figure. As to the distal 

 obliquity of the humeral and median veins described for elegans, 

 the same is true for the present female, and we believe will be found 

 the same in the type of masoni, the figure being probably inexact 

 in this feature. 



The male sex being unknown for the genus and species, we would 

 remark the following features: 



General form similar to but more slender than that of female, 

 armament of cephalic limbs exactly the same. Ocelli slightly larger. 

 Facial scutellum generally similar to that of female, but very slightly 

 broader, dorsal margin acute angulate mesad. Tegmina and wings 



" Bull. Soc. Ent. Italiana, XLVI, p. 198, (1915). 



