ART. 6. 



NEW SPECIES OF TERMITES SNYDER. 



27 



In other specimens (identified as dims in the Hagen collection) from 

 Rio de Janeiro, Brazil (Mus. Berol) the marginal tooth on the left 

 mandible is near the line of division of the mandible at the base; the 

 tooth on the right mandible is larger and projecting. Holmgren ^^ 

 writes that specimens identified by Hagen as dims have large, strong 

 marginal teeth on the mandibles. From an examination of the 

 paratype it is apparent that Holmgren is wrong and that the hairy 

 headed, long spined specimens of dims collected by A. Emerson in 

 British Guiana are a new species. Mr. Emerson has described these 

 as S. snyderi, since this paper went to the printer. 



In the soldier of grandis from Rambur's collection ^^ (not in very 

 good condition), the head is not hairy, is yellow-brown, dull, with a 

 tinge of red at the apex; the mandibles are saber-shaped, broad at 

 the base but curved in and slender at the apex; the left mandible is 

 slender and curved beyond the marginal tooth, which is blunt and is 

 near the apex of the labrum (when the mandibles are crossed or 

 together) ; the right mandible has the marginal tooth at about the 

 middle; both marginal teeth are projecting. 



Measurements. 



Syntermes 

 emersoni 

 Snyder. 



Syntermes dirus Burmeister. 



Brazil.i 



British 

 Guiana.^ 



Syntermes 



qrandU 

 Kambur.' 



Total length of soldier , 



Length of head with mandibles 



Length of head without mandibles (to tip 



of labrum) , 



Length of head without mandibles (to 



anterior of head) , 



Length of labrum (to base central hyaline 



lobe) , 



Length of pronotum 



Length of liind tibia 



Length of left mandible 



Width of head (at broadest part) 



Wid th of labrum 



Width of pronotum (to tips spines) , 



Length of spines on pronotum^ 



17+mm 



10mm 



8.15 mm. .. . 



7.5 mm. 



0.95 mm 



1 .9 mm 



6.75 mm. . . . 



3.5 mm 



7.5 mm 



1.65 mm. . . . 



5.4 mm 



1.1 mm 



15+mm 



8.8 mm 



6.85 mm 



6 mm 



1.7 mm. (en- 

 tire labrum). 



1.5 mm 



6.2 mm 



3.1 mm 



6.2 mm 



1.4 mm 



4.5 Trnn 



0.7 mm 



19-22 mm 



9.5-9.7 mm... 



7.5-7.9 mm. 

 6-6.5 mm... 



1.3-1.5 mm. 

 (entire la- 

 brum). 



1.7-1.8 mm... 



6-6.2 mm 



3.2-3.5 mm... 



6.5-6.9 mm... 



1.7 mm 



5.5-5.9 mm , 



0.8-1 mm 



14+mm. 

 9 mm. 



1 mm. (entire 

 labrum). 



1.2 mm. 

 5.5? mm . 

 3.2 mm . 

 6.2 mm. 

 1.4 mm. 

 3.6 mm. 

 (Short) 0.35 

 mm. 



1 Collected by Winthem in Brazil, No. 204, Museum of Comparative Zoology, Cambridge, Mass. 



2 Collected by A. Emerson at Kartabo, British Guiana. 



« "Coll. Rbr. Patria?" in the Hagen collection at the Museum of Comparative Zoology. 



I take great pleasure in naming this termite after Alfred Emerson, 

 of the department of zoology. University of Pittsburgh, who has done 

 valu§.bie taxonomic and biological work on termites. 



Type locality. — Iguaripe ( ?) , Brazil. 



Described from a single soldier in the collection of the United States 

 National Museum. 



Type, soldier.— C&t. No. 25748, U.S.N.M. 



22 Zool. Anzeig., vol. 37, pp. 545-6, 1911. 



" Rambur did not describe the soldier of this species, so this is not a type, though from this collection. 

 In Hagen's copy of Rambur's book he has crossed the locality "Senegal" and written "d'apres les types 

 etiquettes de la maiu de M. Rambur de Cayenne." 



20183— 25— Proe.N.M.vol.64 7 



