MANN: ANTS OF THE BIUTISII SOLOMON ISLANDS. 337 



Santa Cruz: Graciosa Bay (Type-locality). Three Sisters: Mala- 

 paina. Uyi: Pawa. San Cristoval: Wainoni Bay, Wai-ai. Ysabel: 

 Fiilakora. 



Occurs in small colonics beneath stones. M. mandibidaris \'ieh- 

 meyer from New Guinea is very close to inodesta, but has on the inner 

 edge of the mandibles a l)road widening, which \'iehmeyer compares 

 with that of Acwpi/ga bidclli Fore!. In modcsta the posterior corners 

 of the blades are produced and rounded continuously with the inner 

 border, resembling the structure of the mandible of Acropyga termi- 

 lobia, rather than of butclli, as figured by Forel. Type. — M. C. Z. 

 9,186. 



65a. Myrmecina modesta Mann, subsp. subarmata, subsp. nov. 



Worker. Length 2.50-2.75 mm. 



Differing frota the 'preceding in having the epinotal spines much reduced in 

 size, being less than half as long as the epinotal decli\dty, triangular in shape 

 and not acute at apex. 



Malaita: Auki. 

 Tijpe.— ^LC.Z. 9,187. 



Key to the Papvaman Species. 



Body without stroflg Sculpture; epinotal spines long and acute. (New 

 Guinea) polifa Emery. 



At least the thorax coarsely sculptured 1. 



1. Gaster opaque, subtly rugoselj^ striate longitudinalh^ Length 3.5 mm. 

 (New Guinea) .opaciventris Emery. 



Gaster shining. Length 2-3 mm 2. 



•2. Antennal scapes not attaining occipital corners; anterior border of chT^eus 

 unarmed. (Xew Guinea) brevicornis Emery. 



Antennal scapes attaining or surpassing occipital corners; clypeus den- 

 tate 3. 



3. Pronotum arcuateh' transversely striate; ch-peus obscurely 4-dentate 



(New Guinea) transversa Emery. 



Pronotimi longitudinalh' striate or punctate 4. 



4. Ferruginous; head and promesonotum with piUgerous punctures; clypeus 



3-dentate. (New Guinea) punctata Emery. 



Black; head and promesonotum coarsely striate; clypeus 2-dentate. . .5. 



