REPORT OF THE STATE ENTOMOLOGIST IQI7 151 
s stout, broadly rounded, almost truncate, the ventral plate 
t, triangularly emarginate, the lobes narrowly rounded. The 
ositor is greatly produced. 
wpe @linodiplosis oculiperda Réubs. 
Thomasia californica Felt 
mm Felt, EH. P. N.Y. Ent. Soc. Jour., 22:132 
he female, tentatively referred to this genus, was reared August 
1913 from galls on Symphoricarpos collected by Prof. E. Bethel 
ake Tahoe, California. The gall consists of irregularly thickened, 
ly unfolded opposite leaflets, the swelling being confined mostly 
he basal half of the midrib. A detailed description of the female 
ven in the above citation. 
DICRODIPLOsSIS Kieff. 
395 Kieffer, J. J. Soc. Ent. Fr. Bul., 64:194 

oo) ——— Wein. Ent. Zeit., 15:92 
397  ———_ Synopse d. Cecidomyies d'Europe et d’Algerie, p. 28 
04 ————_ Soe. Scien. Brux. Ann., v. 28, pt 2; separate, p. 18 
908 Felt, E.P. N. Y. State Mus. Bul. 124, p. 394 
410 Rtbsaamen, E.H. Zeitsch. Wissenschaft. Insektenbiol., 15:288 
pir Felt, E.P. N. Y. Ent. Soc. Jour., 19:53 
913 Kieffer, J. J. Gen. Insect., fasc. 152, p- 157 
Ve have placed in this genus for the present those Diplosids 
‘ing all the claws unidentate and the whorls of setae, and the 
9s of the three circumfili in the male, symmetrical or nearly so. 
s possible that some or all the forms placed here are not cogeneric 
h the type, D. fasciata Kieff., a point which can hardly be 
ablished without more extended knowledge than is at present 
ilable respecting the life histories of the forms under consideration. 
Key to Species 
Males 
a Abdomen fuscous yellowish, length 1.25 mm 
b Fifth antennal segment having the stems with a length three and 
one-half and four and one-half times their diameters, respectively. 
Reared from a subglobular leaf gall on poplar.......-.---++-+---- 
populi Felt, C. a1743 
bb Fifth antennal segment having the stems with a length two and one- 
half and three and one-half times their diameter; probably reared 
from an oak gall. ee Oe eG ah) 8 te Love yee Sy eae 
a Abdomen reddish brown 
b Fifth antennal segment having the stems with a length two and three 
and one-half times their diameters, length 1.5 mm......--.-.----- 
androgynes Felt, C. 6 
