1920.] NATURAL SCIENCES OF PHILADELPHIA. 37 



Length of body 18.3, length of pronotum 5, greatest width of 

 pronotum 2.3, length of tegmen 10, width of tegminal marginal 

 field .9, length of caudal femur 5.3, length of caudal metatarsus 

 1.5 mm. 



IX. Thespin^." 

 1st Group, Euchomenellae. 



Euchomenella heteroptera (Haan). 



1842. M[an(is] {Mantis) heteroptera Haan,^* in Temminck, Verb. Nat. 

 Gesch. Nederlandsche Overseesche Bezittingen, Orth., p. 78, pi. XVIII, 

 fig. 1. [cf ; Banjermassin, [Borneo]; Java; Tondano, Celebes.] 



Singapore, British Straits Settlements, Malay Peninsula, (from 

 C. F. Baker), 1 cf. 



The present specimen agrees exactly with Haan's figure. We 

 would note that the markings of the triannulate cephalic femora 

 are exactly the same on the external and internal faces and that 

 the wings are decidedly iridescent. 



Euchomenella molucarum (Saussure). 



1872. E[uchomena] molucarum Saussure, Melang. Orth., II, p. 27. [cf, 



Molucca.s.] 

 1895. Euchomena molucarum Saussure and Zehntner, in Grandidier, Hist. 

 Nat. Madagascar, XXIII, p. 179. [ 9 , Java.] 



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



This specimen agrees perfectly as to pronotal size and expansion 

 with Saussure's figure, but not with the dimensions given in his 

 description for this part. Compared with the male of E. heteroptera 

 before us, the present insect is seen to differ in its smaller size, weakly 

 maculate pronotum and tegmina,'-^ cephalic tibiae which are as 

 dark as the pronotum, slightly blackened internally at their ex- 

 tremities and cephalic femora which are as dark externally, with a 

 few irregular areas of paler shade toward the ventral margin, but 

 which internally are brownish buff, mottled with dark brown proxi- 

 mad, heavily mesad, with a broad blackish annulus meso-distad, 

 succeeded by a narrow pregenicular blackish annulus. 



2^ This name falls, as Thespis, properly defined, is a member of the group 

 Musonise, which we believe best assigned to the subfamily Iridopteryginae 

 (not as understood by Giglio-Tos). We are not satisfied that this ninth division 

 of Giglio-Tos is homogeneous or that it is worthy of recognition as a subfamily. 

 We consequently do not propose a new name to take the place of the Thespina; 

 of Giglio-Tos. 



^* The female described and figured as this species, p. 78, pi. XVIII, fig. 2, 

 represents a different species. 



-^ The tegmina are well described by Saussure as " Membraneux, d'un brun- 

 ferrugineux nuageux, marbres de taches plus hyalines." 



