Sept., 191 1.] Girault: Notes on Hymenoptera Chalcidoidea. 177 



Family ENCYRTID^. 



Subfamily Encyrtin^. 



Tribe Arrhcnophagini. 



Genus ARRHENOPHAGUS Aurivillius. 



Arrhenophagus chionaspidis Aurivillius. 



I add the following redescription in order to call attention to cer- 

 tain probable errors in former descriptions and to make additions. 



Female. — Small for the group in size and normal in aspect, but the tarsi 

 are only 4-jointed. Legs normal, all tarsi 4-jointed, the apical joint the 

 longest, the rest short, subequal in length, about half the length of the apical 

 joint, the proximal joint, however, somewhat longer than the second and 

 third joints. Tibial spurs not long or large, slightly longer than the proximal 

 tarsal joints. Antennae 7-jointed — scape, pedicel, two ring-joints (or two small 

 funicle joints), and a 3- jointed club; pedicel longer than the combined 

 lengths of the two ring-joints, the latter connate with the club, the second 

 wider but shorter than the first ; first and second club joints subequal, one- 

 third longer than the pedicel and nearly one-half longer than the apical club 

 joint, which is conic (apparently and casually the antennae are 3-jointed— 

 scape, pedicel and unjointed club, the pedicel being much the shortest of the 

 three, the scape and club subequal in length, but the latter stouter) ; antennae 

 inserted below the middle of the face ; flagellum club-shaped, bearing uniform, 

 short white hairs rather closely placed. Mandibles moderately short, acute. 



Fore wings normal in shape, that is Ijroad, the margins convex ; with no 

 transverse oblique (proximo-caudad) hairless line running from the region of 

 the stigmal vein, the discal cilia uniformly close, short and delicate, as are 

 also the marginal cilia (cephalic and apical margins especially, normal posi- 

 tion) ; venation incomplete — marginal, postmarginal and stigmal veins absent, 

 the submarginal vein long and slender, thickening slightly distad, but abruptly 

 terminating before reaching the cephalic margin of the wing; marginal vein 

 represented by a circular fumated spot. Ovipositor acutely saber-shaped, 

 slender, slightly exserted. Axillae narrow, wedge-shaped, broad, slightly 

 separated. 



Head (lateral aspect) wedge-shaped, the base (caudal margin) flat, the 

 opposite (cephalic) margin an inclined plane ; from cephalic aspect, triangu- 

 lar. Eyes practically bare. Parapsidal furrows absent. 



Resembling somewhat the Aphelinid genera Casca Howard and Bardylis 

 Howard but distinguished from them by the absence of the marginal and 

 other wing veins, the broader fore wings, the undifferentiated funicle (or the 

 clavate flagellum — excluding pedicel) or antennal characters, by pedal char- 

 acters and by general aspect and general characteristics. 



It is due to Dr. L. O. Howard to state that I was misled by the super- 

 ficial resemblance of this genus to certain Aphelininae, so much so as to think 

 of erecting a new genus for it in that group, but thanks to Dr. Howard's 



