HYMENOPTERA. 299 



different lights has a beautiful tessellated appearance ; the base 

 of the abdomen cinereous ; beneath, the abdomen is naked, the 

 apical margins of the segments being rufo-piceous. 



The male resembles the female, but sometimes has the wings 

 paler. 



Hab. Northern India; The Punjaub. (Coll. Gen. Hearsay.) 



14. TACHYTES MODESTUS. B.M. 



Female. Length 6-6 lines. Black : the head and thorax 

 clothed with short silky pale golden pubescence ; on the face it 

 is very dense and shining ; the scape at the apex in front, the 

 palpi and mandibles rufo-testaceous, the tips of the latter rufo- 

 piceous ; the legs pale ferruginous ; the coxae, trochanters and 

 base of the femora black ; wings hyaline, the nervures and tegulae 

 rufo-testaceous. Abdomen thinly covered with a changeable 

 pale golden pubescence ; the basal and three following segments 

 have a band of silvery pubescence ; the apical segment margined 

 and covered with short silvery hairs. 



Hab. India. 



15. TACHYTES SINENSIS. B.M. 



Female. Length 8 lines. Black : the face densely covered 

 with golden pubescence, the cheeks and outside of the mandibles 

 thinly so. Thorax covered with pale yellow pubescence; the 

 sides of the mesothorax, the post-scutellum, breast and hinder 

 margin of the tubercles with a bright changeable golden pile ; 

 the legs have also a golden pile, and the tibiae outside are covered 

 with rich golden pubescence ; the spines, calcaria and claws pale 

 ferruginous ; the wings flavo-hyaline, the nervures and tegulae 

 rufo-testaceous. The margins of the three basal segments of the 

 abdomen have fasciae of bright silvery pubescence, which are 

 widest towards the lateral margins ; the apical segment margined 

 and covered with fusco-ferruginous pubescence. 



The male closely resembles the female, but has the apical seg- 

 ment covered with silvery pubescence. 



Hab. North China (Shanghai). (Coll. R. Fortune, Esq.) 



Species of Africa. 

 Sect. 1 . Abdomen red and black. 



16. TACHYTES DICHROA. 



Female. Length 8 lines. Head and thorax black ; the scape 

 in front, the palpi and mandibles ferruginous ; the face and cheeks 



