68' PEOCEEDINGS OF THE ACADEMY OF [Feb., 



Length of body cf 56, 9 64.5; length of pronotum cf 20.3, 9 23.7; 

 greatest width of pronotum cf 11, 9 14.7; length of tegmen cT 

 50.2, 9 45.5; mdth. of tegminal marginal field cf 4.7, 9 5.8 mm. 



Rhombodera basalis (Haan). 



1842. M[antis] (Mantis) basalis Haan, in Temminck, Vorh. Nat. Gesch. 

 Nederlandsche Overseesche Bezittingen, Orth., p. 67. [ 9 ; Krawang, 

 Java.] 



Singapore, British Straits Settlements, Malay Peninsula, (from 

 C. F. Baker), 1 9. 



This is a large specimen; length of body 85, length of pronotum 30, 

 width of pronotum 18.7 mm. 



Rhombodera valida Burmeister. 



1838. M[antis] (Rhotnbodera) valida Burmeister, Handb. Ent., II, Abth. 

 II, pt. I, p. 536. [Java.] 



Labuan Island, British North Borneo, 1 cf . 



This species is separated by Giglio-Tos from R. basalis (Haan) 

 by the broader, sub-circular, rhomboidal pronotum and quadii- 

 ramose discoidal vein of the tegmina. The material measured by 

 that author does not show as broad a pronotum as does the present 

 specimen, but from study of his paper we are led to believe that 

 the measurement given for pronotal width may not be correct. 



The additional ramus of the discoidal vein of the tegmina is 

 clearly a poor specific criterion, noting that the same vein is bi- or 

 tri-ramose in hasalis, as stated by Giglio-Tos. 



As a result we feel that the specific validity of the condition 

 to which the name valida is applied is open to question, the position 

 which we take being much the same as stated for R. stalii Giglio- 

 Tos in the present paper. We are further strengthened in this 

 opinion by the fact that Giglio-Tos has later described a species, 

 rotunda,^^ giving in his meagre comparative description, as differ- 

 ential characters to separate that form from valida, the broader 

 pronotum and the fact that the four specimens before him have 

 the cephalic femora with black maculations before the unguicular 

 sulcus. The present specimen agrees closely with Giglio-Tos' 

 measurements for rotunda, but has the cephalic femora immaculate. 



Length of body 71, length of pronotum 21.6, greatest width of 

 pronotum 16.3, length of tegmen 56, width of tegminal marginal 

 field 4.4 mm. 



61 Bull. Soc. Ent. Italiana, XLVIII, p. 6.5, (1917). 



