1895. 



rilOCEEDlNdS OF THE XATIOXJL MUSEUM. f)35 



PHYSCUS VARICORNIS, Howard. 



Coccophanus raricoriiis, Howaku, Ann. Rep. I', f^. Di-pt. Agric, 1880, p. SCO. 

 FIniscus varkoniis, Howaud, Kevis. Apheliiiinn- N. A., Techn. 8er. No. 1, 1'. S. 

 Dept. Agric. Div. Entoru., 18<t5, p. 43. 



This species, liitherto Ibuud only at Washington, District of Cohimbia ; 

 Alameda, California, and Chanjpaign, Illinois, at which points it has 

 been reared respectively from Asiridiotiis ancyluH, Chiouaspis quercKs, 

 and Chi())t(i.spi.s «7»fric((u^/, has been reared by Mr. Green in Ceylon from 

 Chionaspis eJeagn i. 



Genus ASPIDtQTI PH AG US, Howard. 

 Jspidiofiphagiis, Howard, lusect Life, VI, 1894, p. 230. 



ASPIDIOTIPHAGUS CITRINUS, (Craw). 



Cocvophafliis citrinus, Craw, Destructive lusects, Sacramento, California, 1891. 

 Jspidiotiphagus cityiniia, Howard, Insect Life, VI, 1891, p. 231. 



This common and widespread parasite of armored scales in the 

 United States and sontheru Europe was reared by Mr. Green from 

 Diaspis lanatu-s. 



Genus APHELINUS, Dalman. 



Aphelinus, Dalman, 8veusk. Akacl. HaudL, p. 181, 1820. 



APHELINUS MYTILASPIDIS, LeBaron. 



JphcJinus mijtilaspidis, LeBaron, Anier. Ent., II, 1870, p. 3(50. 



This species, commonly reared in the United States from Mi/tilaspiff 

 pomorum, Chiona.spis pinifolii, and Biaspis carueli, has been reared by 

 Mr. Green from Chionaxpls pennntans and Ghioriaspis graminis. 



Genus ENCARSIA, Fosrster. 

 Encarsia, Fcerster, Kleine Mouograpbien. 1878, pp. 65-Ht5. 



The two species which follow differ in some degree from the species 

 described under this genus in the writer's "Revision of the Aphelininte 

 of North America," but the assemblage of characters brings them so 

 ch)se to Encarsia th-.xt it is not considered advisable to erect a new 

 genus for them. 



ENCARSIA PLANCHONI/E, new species (Howard). 



Female.— Leu gth, 0.5G mm.; expanse, 1.10 mm. Funicle joint 1 iis 

 long as pedicel; joint 2 considerably longer than 1, and with 3, 4, and 

 5, snbequal in length and breadth: the two terminal joints not so 

 closely united as with other species of this genus, the Urst one e(iual- 

 ing the fourth funicle joint in length and breadth, and the last one 

 pointed at apex and somewhat shorter. All funicle joints with close 

 louuitudinal cnrinaN as with Covcophayus. Cephalic border of meso- 



