THE FAMILY EUCHARIDAE — GAHAN 427 



twice as long as broad, thicker at apex than at base; second joint dis- 

 tinctly a little longer than broad ; third, fourth, fifth, and sixth joints 

 barely longer than broad, the seventh very slightly broader than long; 

 eighth, or club, joint apparently undivided and one and one-half to 

 two times as long as the preceding joint. 



Forewing a little more than two and one-half times as long as broad, 

 without marginal cilia and with rather weak discal cilia, the base 

 bare ; marginal vein very slightly thicker at base than at apex, post- 

 marginal vein subobsolete, stigmal vein subtriangular and approxi- 

 mately as broad as long. 



Male. — Length 5.5 mm. Antennal flagellum 10- jointed, the first 

 joint about two and one-half times as long as broad ; second to seventh 

 joints each approximately twice as long as broad; eighth to tenth 

 joints as distinctly separated as the others and each as long as the sev- 

 enth joint or only slightly shorter. Abdominal petiole about four 

 times as long as broad, about as long as posterior femur and a little 

 more slender than in the female ; gaster all black, much smaller than 

 the thorax with the punctation of the apical three tergites similar to 

 that of female but not quite so extensive. Otherwise like the female. 



Type locality . — Suigen, Chosen. 



Type.—V.S.'^M. No. 53548. 



Described from 10 females (one holotype) and 11 males (one allo- 

 type) reared by C P. Clausen from cocoons of FoTTnica sp. in June 

 1928 under Clausen No. 2300. 



Genus PSILOGASTER Blanchard 



PSILOGASTER ANTENNATUS, new species 



In Ashmead's key to the genera of Eucharidae,^ this species runs 

 straight to Psilogaster., agreeing with all the characters cited except 

 that the joints of the funicle are all short, subequal, and subquadrate 

 or barely longer than broad, instead of elongate as usual in the genus. 

 The club of the antenna is indistinctly divided into three segments by 

 very shallow transverse grooves so that the antenna might be said to 

 be 13-jointed instead of 11-jointed. If considered to have 13-jointed 

 antenna the species would run to Orasema in the key, but it differs from 

 typical species of that genus by having the ovipositor very slender 

 and entirely devoid of saw-like teeth, by having the abdominal petiole 

 longer and much more slender, and by lacking a distinct cross-furrow 

 on the scutellum. No representative of Psilog aster is at hand for com- 

 parison, but the species seems to fit best in that genus and accordingly 

 is placed there pending a better understanding of the genera. 



Female. — Length 2 mm. Head impunctate, highly polished, black 

 with a strong metallic bluish-green tinge on frons, face, and cheeks; 



^Mem. Caruegie Mus., vol. 1, p. 207, 1904. 



