153 



closely and strongly, a little more finely punctured: mesopleura similar; 

 scutellum a little more sparsely and coarsely punctured ; metanotum 

 coarsely chartaceous or rugulose. opaque ; area of propodeum with a few 

 rather coarse, irregular reticulations basally, nearly smooth apically, sides 

 with fine sculpture concealed by the fine, scattered pubescence, the 

 posterior face lineolate chartaceous, carinate laterally below. 



First tergite highly polished and shining, the second and following 

 a little more obscure from the fine scattered pubescence. Without defi- 

 nitely indicated hair bands and apical margins not noticably contracted; 

 sternites a little more pubescent and minutely punctate. 



A stout, compact species, the head broad, the eyes converging below 

 the pronotum with the anterior margin of the collar rounded, the collar 

 narrowed and subinterrupted in the middle, the recurrent nervurcs inter- 

 stitial or nearly so. 



$ . Third sternite with a spine on either side tiie disc and connected 

 by a ridge. 



Scape enormously enlarged, the lower side prolonged beyond the in- 

 sertion of the flagellum, the upper (inner) side more expanded below. 



Black, clypeus except a linear lateral border, labrum and mandibles 

 largely, dot on the genae behind base of mandibles, another on the tem- 

 ples a little below the summit of the eyes, sides of face to above the 

 antennae obliquely rounded from near the orbit to the antennae, spot 

 on upper part of supraclypeal area, scape except infuscated longitudinal 

 discal area, pedicel, spot on cither side the neck, collar nearly continuous 

 with the tubercles, base of tegulae, knees, tibiae and tarsi except inner 

 apical infuscate areas on tibiae yellow (reddened bj- cyanide in the ma- 

 terial described). The marks on the underside of the head and on the 

 neck absent in $ paratype. 



Seventh sternite witli two very small simple lateral lobes apically. 

 Eighth sternite with a l)asal process, the apical process nearly straight 

 sides narrowed apically and curved, the apex strongly chitinized and 

 dorso ventrally thickened. Stipites longer than sagittae evenly narrowed 

 on the inner (median) side to apex from base (no distinction of apical 

 and basal parts). 



9 Length 6 nnn. ; wing 4.3 mm. ; ^ Icngtii 4.3 mm. : wing 3 nun. 



Describod from two females and two male.'^, the former 

 collected at Karnizawa September 191 ;5. the latter merely 

 labelled Japan. 



Type, alliitypc and paratypcs in the antluM"*-^ ('(.llcction. 



Hylaeus Matsumurai n. sp. 



9 . Edge of collar sulKarinate. acute, tlic pubescence on its posterior 

 tdge (relatively) strong and plumose. 



Black : sides of face truncate below the lower edge of the antennal 

 socket and ;icutel>- ])ro(luce(l along the e\e margin sometimes a1)':.ve the 



