272 Philippine Journal of Science i9i» 



25. Second abdominal segment wholly without basal band or patches of 



tomentum; mesothorax dull; punctures of scutellum very irregular; 

 area of metathorax dullish, with strong plicae (Mount Banahao and 



Imugan) melaimrops sp. nov. 



Second abdominal segment with basal band or lateral patches of to- 

 mentum 26. 



26. First recurrent nervure meeting second transverse cubital ; tongue linear. 



Nesohalictus robbii (Crawford). 

 First recurrent nervure joining second submarginal cell; mouth parts 

 ordinary for the genus; hair of postscutellum light fulvous. 



banahaonis Cockerell. 



Halictus itaminus sp. nov. 



Female. — Length, about 6 millimeters ; black, with thin white 

 hair, conspicuous on sides of thorax and forming a dense to- 

 mentum on postscutellum; head normal, face broad but eyes 

 strongly converging below, clypeus somewhat produced; man- 

 dibles black, reddish at end; underside of head flattened, finely 

 and densely striate; antennse dark, the flagellum faintly brown- 

 ish beneath; front dull, extremely densely punctured; clypeus 

 irregularly punctured; mesothorax shining but not highly pol- 

 ished, the punctures distinct and well separated, the median 

 groove well developed; scutellum convex, shining, sparsely 

 punctured, with no median groove (H. gedensis has it dullish, 

 with a median groove) ; area of metathorax appearing roughened 

 (but under microscope seen to be reticulated) at middle and 

 base, the posterior part at side being smooth (microscopically 

 tessellate), while the posterior middle is somewhat swollen, 

 with a median depression ; posterior truncation dull • except 

 upper part, which is shining, its sides angular; sides of thorax 

 dull, except a shining area below the wings; tegulse piceous; 

 wings dusky, stigma (which is large) and nervures piceous; 

 first recurrent nervure meeting second transverse cubital; legs 

 black, with pale hair; hind spur with long spines; abdomen 

 shining, with white hair bands, broadest laterally (not always 

 clearly visible) at bases of second and third segments; venter 

 with white hair. 



Male. — Very much like the female, but smaller and slenderer ; 

 clypeus entirely black; legs entirely dark; mesothorax shining. 



Luzon, Laguna Province, Mount Maquiling, 10 females and 

 8 males (the type is a female) ; Mount Banahao, 1 female : 

 Mountain Province, Baguio, 1 female. All from Baker. 



This is very close to certain species of Java, H. gedehensis 

 Friese and especially H. gedensis Ckll., differing from the latter 

 especially in the scutellum, as is indicated in the preceding 

 description. 



