18G5.] 97 



IT<ih. — New York, (Ashton) ; Illinois, (Dr. Lewis and Mr. Walsh.) 

 roll. Ent. Soc. Philad. 



Eleven % specimens. This is probably the S of F. polifits Say, al- 

 though I am by no means certain that it is ; the sculpture and mark- 

 ings are very similar, the greatest difference being in the color of the 

 markings, which are yellow in this species, and milk-white in 

 politus. 



II. Fhilanthus bilunatus, n. sp. 



Black, polished ; sides of the face, clypeus, spot on vertex, collar, tubercles, 

 postscutellum, tibias and tarsi, two lunate spots on second segment of abdomen, 

 and narrow emarginated fascia? on three following segments, lemon-yellow: 

 wings dusky at tips: abdomen narrowed and constricted at base. 



M(il'\ — Black, polished, impuuctured, except on the vertex, which 

 is closely and very minutely punctured ; head large, transversely ovate ; 

 sides of the face, clypeus, small transverse line just above the clypeus, 

 and a large suborbicular spot on the middle of the front, yellow ; man- 

 dibles entirely black ; antennae black, the scape within and a spot on 

 the second and third joints of the flagellum, yellow. Thorax impuuc- 

 tured, very thinly pubescent; slightly interrupted line on the collar, 

 spot beneath the anterior wing, line on postscutellum, and the tegulfe, 

 yellow ; metathorax convex, rounded behind, with a deep elongate fovea 

 on the disk. Wings hyaline at base, the apical half stained with pale 

 fulvo-fuscous ; nervures pale honey-yellow. Legs black ; extreme tips 

 of the femora, and the tibias and tarsi entirely, yellow ; posterior tarsi 

 dusky at tips. Abdomen ovate, much narrowed and constricted at 

 base, highly polished, impunctured ; basal segment convex, rounded at 

 base, sometimes with a yellow dot or line on each side of the middle ; 

 second segment with a large, transverse, lunate, yellow luark on each 

 side, sometimes almost confluent on the middle; the three following 

 segments each with a narrow, apical yellow fascia, more or less deeply 

 emarginate on each side anteriorly ; two apical segments slightly pu- 

 bescent, immaculate, the last subtruncate at tip ; venter polished, im- 

 maculate. Length -ii lines; expanse of wings 7t lines. 



ILih. — Massachusetts (Stratton); Tlliuois (Walsh). Coll. Ent. Soc. 

 Philad. 



Five % specimens, 9 unknown. A. handsome little sp»ecies, readily 

 distinguished by the polished, impunctured body, and by the abdomen 

 being much narrowed and somewhat strangulated at base, with two 

 large lunate marks on the second segment above. 



