140 HYMENOPTERA. 



quarter longer than the fourth. Thorax shining, minutely and sparsely punctured ; 

 the median segment largely reticulated, the keels stout ; there is a belt of depressed 

 silvery pubescence on the pronotum ; the median segment is covered with rather long 

 silvery hair, the rest of thorax being sparsely haired. Basal half of the petiole narrow, 

 cylindrical, slightly curved, not sulcated above or laterally. Abdominal segments 

 impunctate, the apex of the abdomen densely covered with golden-fulvous hair. 

 Pygidial area broad, curving to a sharp point at the apex ; the top densely covered 

 with dark brown stiff", depressed, pubescence ; the sides punctured. Legs pilose ; 

 the base of the tibiae and of the tarsi broadly, and the spurs, white ; tarsi thickly 

 spinose, the spines long. Second cubital cellule narrow, the top more than half the 

 length of the bottom, and twice the length of the third ; the first recurrent nervure 

 about three-fourths of the length of the top of the second cellule from the first trans- 

 verse cubital nervure ; the second recurrent nervure immediately beyond the second 

 transverse cubital nervure, in the third cubital cellule, the latter not much narrowed at 

 the top ; the third transverse cubital nervure curved at the bottom, the top almost 

 straight. 



Pam. PEMPHREDOHTDJE. 



A family of small extent, and with the species comparatively minute and incon- 

 spicuous. 



STIGMUS. 



Stigmus, Jurine, Nouv. Meth. de Class, les Hymen, p. 139 (1807). 



Only two species of Stigmus have been recorded from the Nearctic region and 

 one from South America. 



v 1. Stigmus parallelus. 



Stigmus par allelus, Say, Bost. Journ. Nat. Hist. i. p. 378 *; Complete Writings, ii. p. 760. 

 Hab. Mexico 1 . 



I cannot identify this insect amongst our Mexican specimens of Stigmus. 



V 2. Stigmus podagricus. (Tab. VIII. fig. 22, $ .) 



Stigmus podagricus, Kohl, Ann. k. k. naturh. Hofmus. v. p. 65 \ 



Hob. Mexico, Orizaba (Bilimek *) (F. D. Godman & H. H. Smith), Tepetlapa in 

 Guerrero, Teapa in Tabasco (H. H. Smith). 



This species differs from the following by the pronotum above being sharply raised, 

 completely transverse (not narrowed at the base), and with the sides sharply edged. 



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