HYMENOPTERA. 173 



in the females, large and small workers, with a pectinate spine 

 at their apex. 



We have compared numerous examples of (Ecophthora with 

 specimens of Pheidole providens, and cannot find the differences 

 mentioned by Professor Heer; there is no difference in the 

 relative length of the first joint of the tarsus ; the mandibles are 

 equally acute at their apex ; in all generic characters they pre- 

 cisely correspond. We have not seen the males of either of the 

 types, but as other sexes agree in every particular, we have in- 

 cluded in one genus all such species as possess the characters 

 above given. 



1. PHEIDOLE PUSILLA. PI. IX. figs. 18-20. B.M. 



(Ecophthora pusilla, Heer, Ueber die Hausameise Madeira's, 

 1852; Ann. fy Mag. Nat. Hist. ser. 2. xvii. 225 (1856). 



Hob. Madeira. 



2. PHEIDOLE PROVIDENS. 



Atta providens, Sykes, Trans. Ent. Soc. Lond. i. 103. pi. 13. f. 5, 



Pheidole providens, Westw. Ann. Sf Mag. Nat. Hist. vi. 87 (1841). 

 (Ecodoma providens, Jerdon, Madr. Journ. Lit. fy Sc. 108 (1851 ); 

 Ann. 8) Mag. Nat. Hist. ser. 2. xiii. 50. 8 (1854). 



Hab. India (Poona). 



3. PHEIDOLE PALLIDULA. 



Myrmica pallidula, Nyl. Addit. Alt. Adno. Mon. Form. Bor. Eur. 



42; Form. Fr. et d'Alger. p. 97- 



(Ecophthora subdentata, Mayr. Einige neue Ameis. 143. 

 (Ecophthora pallidula, Mayr. Form. Austr. 183. 1. 



Hab. Europe. 



4. PHEIDOLE MALABARICA. 



(Ecodoma malabarica, Jerdon, Madr. Journ. Lit. fy Sc. 107 

 (1851); Ann. $ Mag. Nat. Hist, ser. 2. xiii. 49 (1854). 



Hab. India. 



5. PHEIDOLE DIFFUSA. 



(Ecodoma diffusa, Jerdon, Madr. Journ. Lit. Sf Sc. 109 (1851); 

 Ann. fy Mag. Nat. Hist. ser. 2. xiii. 51. 9 (1854). 



Hab. India. 



