August, '10] FELT : GALL MIDGES 353 



Cynips. 'Male, length 1 mm., abdomen light yellowish with a 

 dark fuscous spot dorsally on the third and fourth segments; 

 antennal segments 14, the fifth having the basal portion of the 

 stem with a length about four times its diameter, the distal part 

 with a length five times its diameter. 



Thecodiplosis qucrcifolia Felt. 



A subhemispherie, brown, slightly nippled, nionothalamous gall 



on the under side of the leaf, diameter 1.75 mm. Male, length 



2 mm., abdomen dark brow^n; 14 antennal segments, the fifth 

 with a length about three times its diameter. Female, length 2 

 mm., abdomen reddish orange, the fifth antennal segment with a 

 length fully 4 times its diameter. .. .Ci»ch'cor?n'a glohosa Felt. 



Flat, inconspicuous galls. 



A flat, relatively inconspicuous, probably blister gall. ]\Iale, length 

 1.5 mm., abdomen dark reddish brown; 14 antennal segments, 

 the third with a length about twice its diameter. Female, length 

 1.5 mm., abdomen reddish brown, the third antennal segment 

 with a length twice its diameter. .Ci^cficornia quercifolia Felt. 



A slight circular, blister-like swelling on the lateral veins, length 



3 mm., diameter 1 mm. Male, length 2.5 mm., abdomen mostly 

 yellowish orange ; antennal segments 14, the fifth with a length 

 three times its diameter. Female, length 2 mm., abdomen with 

 the sclerites dark brown, the membrane and pleurse deep orange, 

 the fifth antennal segment with a length 2i4 times its diameter. 



Cincticornia americana Felt. 



A broadly, yellow margined, circular, blister gall, diameter 3 mm. 

 ]Male, length 2 mm., abdomen dark brown ; antennal segments 14, 

 the fifth with a length about 4 times its diameter. 



Cincticornia serrata Felt. 



A variable brown, irregularly oval, pustulate swelling 5 to 6 mm. 

 in diameter. Male, length 2 mm., abdomen deep reddish orange ; 

 14 antennal segments, the fifth with a length about three times 

 its diameter. Female, length 2 mm., abdomen dark brow^n, the 

 fifth antennal segment with a length four times its diameter. 



Cincticornia pustulata Felt. 



An irregularly oval, pustulate swelling 5 to 6 mm. in diameter 

 showing equally on both surfaces but with no nipple. Male, 

 length 2 mm., abdomen dark brow^n; 14 antennal segments, the 

 fifth with a stem one quarter the length of the basal enlargement, 

 wiiich latter has a length 2i^ times its diameter. Female, length 

 2 mm., abdomen dark brow^n, the fifth antennal segment with a 

 length 31^ times its diameter Cincticornia simpla Felt. 



