March, 1912.] Wheeler: The Ants of Guam. 47 



20. Camponotus maculatus Fabr. subsp. chloroticus Emery. 



I refer to this subspecies several workers, males and females. 

 Emery cites it from New Guinea, Tonga, New Britain and the 

 Nicobar Islands, and Forel cites it from the Bismarck Archipelago, 

 so that it is, in all probability, widely distributed among the islands 

 of the Pacific. C. chloroticus is very closely related to the subsp. 

 pallidiis F. Smith and snbnndus Emery. 



21. Camponotus reticulatus Roger subsp. fuUawayi new subsp. 



Worker Major. — Length 5-5.5 mm. 



Head subrectangular, excluding the mandibles a little longer than broad, 

 a little narrower in front than behind, with nearly straight sides and feebly 

 excised posterior border ; convex above and posteriorly, obliquely flattened in 

 front. Eyes rather large, behind the middle of the head. Frontal area dis- 

 tinct, triangular ; frontal carinse subparallel, feebly sigmoidal, not diverging 

 behind. Clypeus flattened, subrectangular, a little longer than broad, as broad 

 behind as in front, feebly carinate and with a straight, indistinctly crenulate 

 anterior border, slightly notched on the sides. Mandibles convex, with S 

 subequal teeth. Antennal scapes terete, curved, enlarged towards their tips, 

 extending about twice their diameter beyond the posterior corners of the 

 head. Thorax above slightly convex, with very distinct promesonotal and meso- 

 epinotal sutures, the latter somewhat deeper than the former and occupying 

 the region of the obsolete metanotum. Epinotum with subequal base and 

 declivity, the former in profile straight, the latter distinctly concave below. 

 Seen from above the thorax has straight sides which converge gradually to- 

 wards the narrow and laterally compressed epinotum ; the pronotum is broader 

 than long, the mesonotum as long as broad, the epinotum half again as long 

 as broad. Petiole inclined forward, compressed anteroposteriorly, with blunt, 

 entire and rounded border, slightly convex anterior and flat posterior surfaces. 

 Gaster elongate elliptical, as long as the thorax. Legs rather long and robust. 



Mandibles shining, finely punctate. Remainder of body subopaque, except 

 the cheeks, legs and petiole which are more shining. Head and thorax densely 

 punctate, the punctures on the head being larger than those on the thorax. 

 Clypeus, cheeks, front and pronotum also with a few shallow, scattered foveolas. 

 Gaster finely, transversely striolate and with minute scattered piligerous punc- 

 tures. The latter are also present on the scapes and legs. 



Hairs sordid white, moderately long and sparse, partly erect or suberect 

 and partly appressed on the head, thorax and gaster ; short and appressed on 

 the scapes and legs except at the tips of the scapes and femora where they are 

 longer and erect. Petiolar border with at least 4 erect hairs on each side. 



Black ; mandibles, except their teeth, antennae, anterior borders of cheeks 

 and legs, including the coxae, testaceous ; tips of scapes infuscated ; fore coxae 

 with a large brown spot at the base. Gastric segments each with the poste- 

 rior border broadly yellow and with a golden reflection. 



Worker Minor. — Length 3.5 mm. 



