l66 NEW YORK STATE MUSEUM 



short, stout, curved; dorsal plate long, the lobes nearly parallel, 

 narrowly roiiuded and sparsely clothed \\dth coarse setae apically; 

 ventral plate short, deeply and triangiilarly eniarginate. the lobes 

 tapering to a narrowly rounded, sparsely haired apex. Type Cecid. 

 1335- 



PORRICONDYLA Rond. 



Epidosis H. Lw. 

 Dicroneurus Kieff. sub. gen. 



1840 Rondani, C. ]Mem. Ila p. s. a. Ditterol. Ital. Parma, p. 14 



1846 Nouv. Ann. Sci. Nat. Bologna, p. 370, 374 



1850 Loew, H. Dipt. Beitr., 4: 20, 21 (Epidosis) 



1S62 Osten Sacken, C. R. Dipt. N. Am., i: 177 (Epidosis) 



1863 Schiner, J. R. Fauna Austriaca Dipt., 2: 402 (Epidosis) 



1876 Bergenstamm, J. E. & Low, Paul. S^ti. Cecidomyidarum, p. 23, 24 



1877 Karsch, F. A. F. Re%-is. de Gallmucken, p. 15 



1888 Skuse, F. A. A. Liim. Soc. N. S. Wales Proc, 3 : 37, 40, 44, 1 15 (Epidosis) 



1892 Rubsaamen, E. H. Berln. Ent. Zeitsohr., 37: 329, 397 (Epidosis) 



1892 Theobald, F. V. Acct. Brit. Flies, i: 51 (Epidosis) 



1894 Kieffer, J. J. Soc. Ent. Fr. Ann., 63: 313, 315, 318 (Epidosis) 



1895 ■ ■ — - Berln. Ent. Nachr., 21: 122 (Dicroneurus) 



1896 Berln. Ent. Zeitschr., 41:2, 3, 6, 20, 21, 23 (Epidosis, 



Dicroneurus) 



1897 S\-n. Cecid. de Eur. &Alg., p. 44, 45 (Epidosis, Dicroneurus) 



1900 Soc. Ent. Fr. Ann., 69:441, 446 (^Epidosis, Porricondyla) 



1904 Meunier, F. Soc. Sci. Brux. Ann., 28: 8 (Dicroneurus) 



1908 Felt, E. P. N. Y. State IMus. Bui. 124, p. 417 



191 1 N. Y. Ent. Soc. Jour., 19: 40 



1913 Eaeffer, J. J. Gen. Insect., fasc. 152, p. 271 



Alembers of this genus may be recognized by the possession of three 

 long veins, the crossvein nuining parallel or nearly so to costa in 

 connection vrith the forked fifth vein and the antenna! segments in 

 both sexes being greath* produced. The males usually have 16, 

 rarely 15, antennal segments, the flagellate ones pro\"ided with a 

 long, and sometimes a ver^- long stem. The females usually- have 12 

 to 14 antennal segments, the stem one-fourth to one-third the length 

 of the basal enlargement. Kieff er has proposed to di\'ide tliis group 

 into two subgenera, namety, Porricond^-la s. str. comprising those 

 forms ha^mlg the basal enlargement in the male antennae sub- 

 spherical, while those of the female are more or less double or strongly 

 contracted in the middle in connection with the claws being strongly 

 cur\-ed and enlarged subapicall}-; the other, Dicroneurus to include 

 those species ha^•ing the antennal segments cylindric in both sexes, 

 the claws arched and not enlarged subapicall}-. He has recently 

 proposed a more detailed, classification of this genus, see page 130. 

 The t}-pe of the genus Porricondyla is C e c i d o m y i a a 1 b i- 

 t a r s i s Meign. 



1 



