Mr. R. E. Turner on Fossorial Ilymenoptera. 253 



6 6- 



1, Ventnil abdoniinal seprnients 2-4 with nn npical 



fiiiif^e of lung hairs ; anal cell of the hind 

 winj^ tt'niiiiiatin]t( far before the origin of 



the cubital iiervwre 2. 



Ventral sej^aneuts without an apical fringe ; anal 

 cell of the hiud wing terminating just be- 

 yond the origin of the cubital nervure .... N. excavatus, sp. n. 



2. Large deep yellow spots on each side occupying 



moot of the dorsal surface of segments 1-.5. N. decoratus, sp. n. 

 Small yellowish-white transverse spots at apical 



angles of dorsal segments 1-4 N. hasalis, Sni., var. 



$?• 



1. Basal dorsal abdominal segment red, with large 



yellow spots at the apical angles N. dubitatus, sp. n. 



l^asal dorsal segment black, with yellow spots . 2. 



2. Yellow spots on dorsal segments 1-5 very hirge, 



only narrowly .separated in the middle .... iV". decoratus, sp. n. 

 Yellow spots on dorsal segments 1-4 not very 



large, situated at the apical angles N. basalts, Sm. 



JS^t/sso7i excavatiiSf sp. n. 



J . Niger ; pronoto liuea transversa utrinque, scutello linea trans- 

 versa basali, segmentisqiie dorsalibus primo eecundoque linea 

 transversa apicali utrinque flavis. 



(J. Olypeus with two feebly developed tubercles in the 

 middle of the anterior niaroiii^ but not produced into teeth. 

 Tenth joint of" the flaoellura broader tlian long, eleventh 

 about as long as broad, apical joint a little longer than the 

 eleventh, not [)erceptibly curved and obliquely truncate at 

 the apex. A short frontal carina broadened triangularly at 

 the base of the antennae. Eyes separated at the base of the 

 clypeus by a distance equal to nearly twice the length of the 

 scape. Head and thorax very strongly and closely punc- 

 tured; ba.sal area of the median segment much shorter than 

 the scutelluni and distinctly longitudinally striated, the spines 

 at the apical angles of the segment rather short and blunt. 

 Abdomen rather closely and not very finely punctured on all 

 the segments, the seventh dorsal segment very deeply emar- 

 ginate at the apex. Second vential segment somewhat 

 angular at the base and deeply separated from the first seo-- 

 ment. Second recurrent nervure received at the base of the 

 third cubitjd cell, almost interstitial with the second trans- 

 verse cubital nervure ; atuil cell of the hind wing terminatincr 

 just beyond the origin of the cubital nervure. Hind tibia 

 without spines. 



Length 6 mm. 



Bah. Coimbatore, S. India, 2000 feet ; August 1912. 



Described from a .>-in<;le male. 



