18 TENTHEEDINID^l.. 



9. PACHYLOSTICTA. 



Pachylosticta, Klug, Ent. Monogr. p. 171 (1824). 



1. Pachylosticta tibialis. 

 Pachylosticta tibialis, King, Ent. Monogr. p. 173 (1824). 



Hab. Brazil. 

 a. $ . Brazil. Entomological Club. 



2. Pachylosticta violacea. 

 Pachylosticta violacea, Klug, Ent. Monogr. p. 174 (1824). 



Hab. Brazil. 

 a. <$ . Brazil. 



3. Pachylosticta chalybea. 



Pachylosticta chalybea, Perty, Del. Anim. Art. p. 129, pi. xxvi. fig. 2 

 (1830-34). 



Hab. Piauhi, Brazil. 



4. Pachylosticta albiventris. 



Pachylosticta albiventris, Klug, Ent. Monogr. p. 174 (1824). 

 Hab. Brazil. 



a. <$. 



Brazil. 



Mrs. Noel. 



b. <J. 



Brazil. 



"W. Swainson 



c, d. ($. 



10. PERGA. 





Perga, Leach, Zool. Misc. iii. p. 115 (1817) ', Westw. P. Z. S. 1880, 

 p. 359. 



The transformations of this genus fully entitle it to be regarded 

 as a distinct subfamily ; but for the present it is more convenient 

 to leave all the Tenthredinidce with clubbed antennae in the same 

 division. It agrees with several of the following genera, as well 

 as with Hylotoma, in the presence of middle spurs on the tibise. 



Section i. 



Antennas short, 6-jointed ; joints 3-5 of equal length, not 

 remarkably short. 



1. Perga dorsalis. 

 (Plate I. figs. 11, 12,12 a, 12 b.) 



Perga dorsalis, Leach, Zool. Misc. iii. p. 117, n. 4, pi. cxlviii. fig. 1 



(1817) ; Westw. P. Z. S. 1880, p. 362. 

 2 . Perga scutellata, Gray, Griff. An. Kingd. xv. p. 402, pi. lxvi. 



fig. 2 (1832). 



