18 HYMENOPTERA. 



The tibiffi at the tips are armed with a short spur. 



The tarsi are four-jointed. 



The fore wings at the apex tolerably broad ; breed afgerond de voor- 

 rand naar binuen gebogen* The costal vein runs merely to a point in 



* I was unable to translate these words, 

 the cephalic margin of the wing and bears upon the distal half four 

 erect setae. The branch of the costal vein is broadened at the tip and 

 weakly split. The "faintly" smoky-colored part of the wings is 

 clothed with short cilia disposed lengthwise and the respective wing 

 margins are surrounded or enclosed by a fringe {kra^is) of long cilia. 



The posterior wings are narrow lancet-shaped, with a projecting 

 point in the middle of the cephalic margin. The upper side is pro- 

 vided with a single longitudinal row of short cilia. The wing margins 

 are clothed with long cilia except on the basal third portion. 



Mandibles quadrangular, towards the end exceedingly narrow, at 

 the apex provided with from four to five blunt teeth. 



Maxilla and labium with 1-jointed palpi, the palpi with a short, 

 erect, stiff seta beneath their tip. 



Length of the body 0.55 mm. 



Length of the fore wings 0.38 mm. 



As indicated in the footnote referring to the plate, there 

 by mistake the legend read Trichograinma instead of Chaeto- 

 s tic ha. 



Additional descriptive notes : 



The coloration is quite as described but the ground color is vari- 

 able sometimes decidedly dark yellow. The fumation of the proximal 

 halves of the fore wings is variable in depth or density, sometimes pro- 

 nounced, especially in the females but usually not very dense and in 

 individuals uniform. Neck of the stigmal vein slender, graceful. The 

 tarsi are not 4-jointed as described and the female does not have two 

 ring-joints in the antennae as plainly indicated in the description though 

 not shown in the figure whereas the male has a single ring-joint as in 

 the female, hence the male antennae are 8-jointed, those of the female 

 6-jointed ; hence in the case of the female an additional joint was erro- 

 neously accepted while in the male one was overlooked. The fuma- 

 tion of the fore wing extends distad to the end of the stigmal vein, its 

 distal margin nearly straight ; the discal ciliation of the fore wing ex- 

 tends proximad in a broken line to a point opposite the base of the 

 stigmal vein. The marginal cilia of the caVidal margin of the posterior 

 wings are about equal in length to the longest marginal cilia of the 

 fore wing or somewhat shorter and are distinctly longer than the 

 caudal wing is wide. There are four prominent setae borne by the 

 venation as mentioned in the description, a distal two borne by the 

 marginal vein and the other two along the distal end of the submar- 



