PARASITES OF THF FAMILY DRYINIDAE. 

 "By R, a L, PERKINS, 



In Bulletin I (p. 3-69 and p. 483-499) and Bulletin IV (p. 

 5-55 ) an account was given of the interesting parasites of the 

 family Dryiiiidac. A number of figures was prepared by Mr. 

 \V. E. Chambers to illustrate these Bulletins, but as they were 

 not completed until long after the letter press, they have never 

 been published. I have, therefore, completed the working out 

 of the material at present available and added some further gen- 

 eral remarks, in order that the former bulletins may be rendered 

 more com])lete, and that these excellent plates may now be pub- 

 lished. 



In 1907 a classification of the Dryiiiidac by Dr. J. J. Kieft'er 

 was published in "Wytsman's Genera Insectorum," wherein the 

 family was divided into three subfamilies, Dryiiiiiiac, Goiiato- 

 podiuac, and Antcoiiiwac. 



The characteristics there given for the separation of the sub- 

 family Dryininac are based on the shape of the stigma of the 

 front wings, which is narrow or lanceolate, and on the fact that 

 the hind angles of the pronotum do not reach back to the tegulae. 

 In the males of the Dr\ininac, however, as in all Dryiiiidac, the 

 prothoracic angles reach the tegulae. and I suspect that this is 

 the case in some females assigned to the subfamily, e. g., Boc- 

 cJiiis and Cliclothcliiis. though I have seen no specimens of either 

 genus, unless my Eiikocbclcia be synonymous with the former. 

 Phorbas Ashm. must certainly have the pronotal angles and tegu- 

 lae meeting together. As to the form of the stigma, some genera 

 have this in a condition more or less intermediate between the 

 narrow, lanceolate-shaped ones and the large oval. This is the 

 case with ChclothcUus and the females of Dcinodryinus, the for- 

 mer of which should, I think, be removed from Kiefifer's Dry- 

 ininae and placed in his Anteoninae, where Dcinodryinus be- 

 longs, as is clearly ])rove(I by its male, which has a larger stigma 

 and a form of antennae characteristic of the Anteon group. 

 Cliclotlicliits is probably parasitic on one of the Jassoidea (as 

 evidenced by the structure of its chelae), a habit at present un- 

 known in the winged Dryinini. 



The small group Embolcminac of Ashmead should be placed 

 as a subfamily of Dryinidae. Although the nervures of the 



