MANN: ANTS OF THE BRITISH SOLOMON ISLANDS. 353 



The very long, slender, and divergent spines readily distinguish this 

 species. Type. — M. C. Z. 9,179. 



Key to Papuasian Species. 



Petiolar node distinctly longer than broad (Indo Malaya; Australia; 



West Indies; North America, Louisiana) striatidens Emery. 



Petiolar node as broad or broader than long 1 . 



1. Larger species (length 2.5-3 mm.); mandibles not striate; gaster smooth 



and shining. (India; Solomons) obesa Em. Andre. 



Smaller species (Length 1.75-2.50 mm.), mandibles striate; gaster punc- 

 tate, at least basally 2. 



2. First gastric segment not striate basally, coarsely but evenly punctate 

 throughout; epinotal spines very short. (Solomons). .. .ma?/ri Mann. 

 First gastric segment striate and punctate basally; epinotal spines 



longer 3. 



3. Epinotal spines long, slender and strongly divergent; color pale brown, 



with head yellow (Solomons) pidchella Mann. 



Epinotal spines not longer than distance between them at base; color 

 dark reddish brown to black, with head lighter 4. 



4. Petiolar node broader than long; antennal scapes extending three fourths 



the distance to occipital corners ; color black, with head and legs reddish 



brown. (New Guinea) fulviceps Emery. 



Petiolar node not broader than long; antennal scapes almost attaining 

 occipital corners; color dark reddish brown, head and gaster lighter. 

 (Santa Cruz) fulviceps subsp. antennatus Mann. 



82. Strumigenys godeffroyi Mayr. 

 Sitzungsb. Akad. wiss. Wisn, 1888, 53, p. 516,^ . 



Santa Cruz: Graciosa Bay. San Cristoval : Pamua, Wai-ai, Wain- 

 oni Bay. Three Sisters : Malapaina. Ugi: Pawa. Malaita: Auki. 

 Ysabel: Fulakora. 



This is a very common species. It nests beneath bark or stones or in 

 rotten wood and has been found in Termitaria. 



83. Strumigenys decollata, sp. nov. 



Worker. Length 4 mm. 



Form long and slender. Head twice as long as broad, twice as broad at 

 occiput as at clypeus, with narrowly rounded occipital corners and strongly 



