HYMEXOPTERA. 275 



Div. 2. Abdomen black. 



2. LARRADA NIGRA. 



Tachytes nigra, Van. d. T,ind, Obs. ii. 23. 6. 

 St. Farg. Hym. iii. 242. 3. 

 Lucas, Explo. Sc. Aloer. iii. 248. 



Hab. Italy ; Algeria (Oran). 



3. LARRADA NITIDA. 



Astata niticla, Spin. Ins. Lig. i. 18. 



Tachytes niticla, Van. d. Livd, Obs. ii. 24. 7- 



Tachytes pompiliformis, Dahlb. Hym. Europ. i. 130. 66. 



Hab. Italy; Germany: Sweden. (Coll. W. W. Saunders, Esq.) 



4. LARRADA ATRATA. B.M. 



Tachytes atrata, St. Farg. Hym. iii. 245. 6. 

 Lucas, Explo. Sc. Alger. iii. 248. 



Hab. Piedmont ; Algeria. 



Species of Asia. 

 Div. 1. Abdomen red, or red and black. 



5. LARRADA SIMILLIMA. 



Female. Length 7-9 lines. Head, thorax and legs black ; 

 the two former closely punctured and thinly covered with short 

 cinereous pubescence ; the metathorax elongate, abruptly trun- 

 cate at the apex, the truncation punctate and having a longitu- 

 dinal channel; the mandibles and scape obscurely rufo-piceous; 

 the clypeus thinly clothed with aurichalceous pubescence; wings 

 dark fuscous ; the legs black, finely pubescent ; the calcaria, 

 spines and claws obscurely ferruginous, sometimes nearly black. 

 Abdomen red, smooth and shining, the segments covered laterally 

 with a dense sericeous pubescence ; the two apical segments 

 black ; in some examples the apical margin of the fourth seg- 

 ment is also black, in other instances the entire segment ; another 

 variety has the basal and apical segments black. 



Hab. India; Africa. (Coll. F. Smith.) 



This species closely resembles L. anathema, from which it is 

 distinguished by the colouring of the abdomen, by not having 

 an impressed line on the vertex, or a longitudinal central carina, 

 and by the truncation of the metathorax being punctured, not 

 transversely finely strigose. 



