ETHIOPIAN NASUTITERMITINAE 15 



10 Smaller, L, 098-1 07 ; W, 0-37-0-41 ; 73,0-47-0-53. Nose shorter in proportion to 



rest of head 1 apsule (53 : 47) . AFROSUBULITERMES (p, 153) 



- Larger, L, 1 -39-1-53 ; W, 0-55-0-60 ; T 3 , 0-71-0-79 Nose longer in proportion to 



rest of head capsule (59 : 41) POSTSUBUL1TERMES (p. 155) 



11 Head capsule in plan view tapering continuously from near back to nose tip, top- 



shaped or tear-drop-shaped. Nose tip without prominent setae 



MIMEUTERMES (p. 158) 



- Head capsule in plan view not so, nose distini t from rest of head. Nose tip with 4 or 



more prominent setae . . . . . . . . . . . 12 



12 Vestigial mandibles with points NASUTITERMES (p. 15) 



- Vestigial mandibles without points ......... 13 



13 Labium with sinuate .interior margin. Head capsule in plan view a rounded 



rectangle wider than long . . . TARDITERMES (p .166] 



- Labrum with rounded .interior margin. Head capsule in plan view, various, if 



wider than long, then not a rounded rei tangle ...... 14 



14 Head capsule without prominent setae except on nose and occasionally one pair ol 



small setae on vertex. Where minute setae .ire present, sockets nol visible at 

 normal stereomicroscopi magnifications. Soldiers dimorphic or polymorphic 



TR1NERV1TERMES (p. 76) 



- Head capsule with one pair of setae on vertex, one or two pairs near base of nose, 



and four at nose tip with smaller setae behind them Entire head 1 apsule and nose 

 with scattered minute setae with distinct pale sockets Soldiers monomorphi 



BAUCALIOTERMES (\y [38) 



NASUTITERMES Dudley, 1890 



Nasutitermes Dudley, 1890 : 158. Type-species, by subsequent designation (Emerson, 1925 : 

 379), Nasutitermes sanchezi (Holmgren, 1910) = Nasutitermes costalis (Holmgren, i<>io). 



In a recent paper on this genus as it is represented in the Indian region, Prashad 

 and Sen-Sarma (1959) attribute the authorship of the generic name to Banks (1920). 

 They give as their reasons for this change the opinions that (i) the description 

 " soldiers with beak " as given by Dudley (1890) " does not constitute an indication, 

 a definition, or a description", on the grounds that the description is applicable to 

 most genera in the subfamily, and (ii) " the indirect evidence from the termitophiles 

 is untenable ". . . . Because the definition " soldiers with beak ", though meagre, 

 satisfies the requirement of Article 12 of the International (Ode, and because all the 

 other nasute genera at present recognized came into being after the establishment of 

 the genus Nasutitermes by Dudley, many of them having been included in it as 

 subgenera or species when first described, these arguments are not acceptable. Not 

 only is the definition of the genus valid as it stands, but it is supported by its author's 

 reference to his own earlier paper of 1889, in which a detailed description of nest 

 structure and habits was given, together with illustrations of all castes (pp. 107, 

 fig. 7, and 108, fig. 8). These fully satisfy the requirements of Article 16 (a), 

 sections (i) and (viii). The evidence of the termitophiles is irrelevant to the dis- 

 cussion of the authorship of the genus. 



Dudley neither designated a type-species, nor included any nominal species in the 

 genus. Whilst there is little doubt from the evidence of the termitophile Termito- 

 gaster insolens Casey, mentioned by Dudley, and now known to be host specific, 



