Bulletin of the Museum of Comparative Zoology at Harvard College . all nests, which indicates that the coloniesare sometimes started jointly by more than one queen. Nests are shown on Plates 1, 2. 386 bulletin: museum of comparative zoology. 119. Polyrhachis (Dolichorhachis, subgen. nov.) malaensis, sp. nov. Worker. Length mm. Head oval, longer than broad, rather narrowly rounded behind. Cheeksevenly convex. Mandibles 5-dentate. Clypeus distinctly carinate at middle;anterior border notched at middle and angulately toothed at either side ofnotch. Frontal carina narrow, moderately elevat
Bulletin of the Museum of Comparative Zoology at Harvard College . all nests, which indicates that the coloniesare sometimes started jointly by more than one queen. Nests are shown on Plates 1, 2. 386 bulletin: museum of comparative zoology. 119. Polyrhachis (Dolichorhachis, subgen. nov.) malaensis, sp. nov. Worker. Length mm. Head oval, longer than broad, rather narrowly rounded behind. Cheeksevenly convex. Mandibles 5-dentate. Clypeus distinctly carinate at middle;anterior border notched at middle and angulately toothed at either side ofnotch. Frontal carina narrow, moderately elevated, not divergent, extendingto opposite middle of eyes. Antennae long and slender. Eyes small, convex,situated in front of side at posterior fourth of head. Thorax slender, flatabove, sides strongly, angulately margined, but not laminate. Pronotumlonger than broad, humeri with slender curved spines as long as their distancefrom base to promesonotal suture, directed forward and upward and moder-ately divergent. Promesonotal suture very distinctly, though narrowly. Fio. 57.— Polyrhachis (Dolichorhachis) malaeasis Mann. Worker. Lateral view ofthorax and petiole. impressed. Mesonotum longer than broad, narrowed behind; sides in frontconvex, behind concave. Mesoepinotal suture indicated by a distinct trans-verse carina. Base of epinotum quadrate, longer than broad, with straight,sharply margined sides, concave between spines and evenly rounding into thedeclivity; declivity with convex surface, about as long as base. Spines longand very slender, extending backward and slightly upward and but littledivergent. Petiolar node thick, anterior face in profile straight and forminga prominent blunt angle with the flat dorsal surface; posterior surface convex;spines very slender, longer than those of epinotum, moderately divergent,extending backward and upward and curved inward. Gaster broadly slender. Subopaque. Mandibles densely rugulose and striate apically. Clypeusand head rug
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Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology
