Mr. E.. E. Turner on Fossorial Hymenoptera. 301 



thoraceque pallide aureo-pilosis ; alls hyaliuis, veuis fusco- 



ferrugineis. 

 S . Feminae similis ; area pygidiali pallide pilosa. 

 Long., $ 14 mm., S 12 mm. 



? . Clypeus very broadly rounded at tlie apex. Second 

 joint of the flagellum longer than the third by about one- 

 quarter ; eyes separated on the vertex by a distance slightly 

 exceeding the length of the second joint of the flagellum. 

 Basal joint of the fore tarsus with six spines on the outer 

 margin. Front, clypeus, sides, and apex of the niesouotum 

 and sides of the median segment clothed with pale pubescence 

 tinged with gold, a spot of rather deeper golden pubescence 

 on each side near the middle of the anterior margin of tlie 

 mesonotum. Median segment short, scarcely longer than the 

 scutellum, opaque, with a very obscure median sulcus, which 

 becomes well detined on the posterior slope. Abdomen 

 broadly conical ; pygidial area rather narrowly rounded at 

 the apex and clothed with deep golden pubescence. Second 

 abscissa of the radius as long as the. third ; iiist recurrent 

 nervure received distinctly nearer to the second recurrent 

 than to the first transverse cubital nervure. 



Except in the usual sexual characters the male is very 

 similar to the female; there are four small spines on the 

 outer margin of the basal joint of the fore tarsus ; the sulcus 

 on the dorsal surface of the median segment is more distinct ; 

 the abdomen is more slender, and the third abscissa of the 

 radius is distinctly longer than the second. 



Hah. Mackay, Q. {Turnei-). 



In the number of spines on the basal joint of the fore tarsus 

 this resembles plutocraticus ; but this is a smaller insect, 

 with a shorter median segment, the shape of the clypeus is 

 different, also the colour of the legs. It is more stoutly 

 built than ajiproxmatus, from which it also differs in the 

 shape of the clypeus, in the number of spines on the basal 

 joint of the fore tarsus, and in the broader pygidial area. 



6. lachytes mitt's, sp. n. 



2 . Nigra ; mandibulis baai, area pygidiali, tibiis tarsisque ferru- 

 gineis ; segmentis dorsalibus et ventralibus fascia angusta apicali 

 brunneo-ferruginea ; tegulis pallide testaceis; alis hyalinis, venis 

 fusco-ferrugineis ; abdomineargenteo-sericeo, segmentis dorsalibus 

 1-4 fascia lata apicali densins argenteo-sericea ; area pygidiali 

 aureo-setosa. 



J . Feminse similis. 



Long., 2 10 nim., J 8 mm. 



