June, 1921.] Felt: Xkw Species of Reared Gall Miuues. ll.j 



NEW SPECIES OF REARED GALL MIDGES 

 (ITONIDIDiE). 



By E. p. Felt. State Entomologist, 

 Aluany. X. ^'. 



The followinitr descriptions are of species which have been reared 

 by various corres])oiuleiUs and sulnnitted for identification. 



Rhopalomyia sabin^ new species. 



Exuvium. Mesonotum, luad, leg and wing cases infuscated. The re- 

 mainder mostly whitish. 



Pupa. Length 3 mm., rather stout, the antennal. wing and leg cases 

 brownish. Mesonotum somewhat darker, the abdomen yellowish orange with 

 reddish tints. 



Male. Length 3 mm. Antennie extending to the fourth abdominal seg- 

 ment, sparsely haired, fuscous yellowish. 17 segments, the 5ih with a stem 

 about one third the length of the cylindrical basal enlargement, which latter 

 has a length about 2».4 times its diameter. Palpi, first segment short, irregular, 

 the second shorter, broadly ovate. Mesonotum dark reddish brown, scutellum 

 fuscous yellowish. Postscutellum yellowish, abdomen sparsely haired, mostly 

 dark brown. Genitalia yellowish orange. Halteres fuscous basally, reddish 

 orange distally, coxae fuscous yellowish, femora, tibis and tarsi mostly pale 

 yellowish. Claws rather long, slender, the pulvilli distinctly longer than the 

 claws. Genitalia ; basal clasp segment short, terminal clasp segment moder- 

 ately long, curved, dorsal plate deeply and triangularly emarginate, the lobes 

 broadly rounded, ventral plate long, broad and broadly rounded. 



Female. Length 3.5 mm. Antenme extending to the base of the abdo- 

 men, sparsely haired, pale yellowish, 17 sessile segments, the fifth with a length 

 over twice its diameter. Mesonotum fuscous yellowish, the submedian lines 

 sparsely black haired. Scutellum yellowish, reddish apically. sparsely black 

 haired. Postscutellum yellowish orange. Abdomen mostly deep red. the 

 sclerites dark brown, the basal and distal segments yellowish. Haheres dark 

 reddish. Femora a variable fuscous yellowish or fuscous. Tibia* and tarsi 

 black. Ovipositor short, the terminal lobes broadly and roundly triangular 

 and thickly clothed with short setx. Type Cecid. A. 25.: i. 



The species described above closely approaches in i^eneral appear- 

 ance iralsliowyia juttipcruia Felt, from which it may be readily dis- 

 tinguished by the biarticulate palpi and marked difTercnccs in the 

 strnctnrc of the jjenitalia. 



