126 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 51. 



abl}^ marmorated — a complete (or nearly) median stripe and about 

 6 complete cross-stripes (excluding the one at base which is also 

 latero-marginal to the first cross-stripe) ; stripes 1-3 are similar, in- 

 complete, complex, each consisting of a pair of stripes joined broadly 

 across the meson then separated, each concaved or bowed in opposite 

 directions so that their arms diverge laterad but those of the proxi- 

 mal ones are more curved than the others; stripe 4 is similar but 

 the distal arm is much longer, nearly reaching the lateral margin ; 

 stripes 2-4 are joined (thus, the distal arm of 2 joins the proximal 

 one of 3 and in succession) ; stripe 5 has no arms and is more abbre- 

 viated; stripe 6 is complete and is followed by a spot on meson 

 before the apex ; the following additional spots on abdomen — a pair 

 of marginal spots in a line opposite the forks of stripes 2^ (the 

 distal of the two opposite 4 more mesad and against the apex of the 

 distal fork of that stripe) ; a transverse marginal spot opposite 5 ; 

 and an oblique longer than wide spot in the disk on each side of 

 meson between 5 and 6. Distal stripe of fore wing nearly straight 

 and complete ; the middle stripe is only a subtriangular blotch from 

 the apex of the stigmal vein, the proximal one a short dash. Funicle 

 1 a half longer than wide. Mandibles 6-dentate. 



From one female in the United States National Museum, labeled 

 "D. C, October 6, 1880." 



Type.— Cut. No. 19641, U.S.N.M., the female on a tag, the hind 

 legs and head on a slide. 



The lateral margins of postscutellum are not metallic. 



ZAGRAMMOSOMA AMERICANA, new species. 



Ferruile.— Length, 1.50 mm. A round dot on caudal femur laterad 

 at distal three-fourths and one ventro-laterad near base. 



Golden yellow and agreeing with the figure and description of 

 midtUhieata except as follows: There are no metallic lines on the 

 face ; the two lines of the occiput are curved and meet above across 

 cephalic vertex ; below they widely diverge, each curving at the lateral 

 margin from ventrad and proceeding up along the occipital margin 

 of the eye; an irregular line along dorsal edge of the scape; the 

 lateral line of the thorax extends only to the metapleurum ; there is 

 a complete dorso-lateral line on prothorax, but the median line ex- 

 tends only to distal two-thirds ; the median line of scutum fades out 

 just before apex; parapsidal furrows and mesal margin of each axilla 

 very narrowly green, also the lateral grooves of scutellum, an oblique 

 dash from meso-cephalic angle of each axilla nearly to middle and a 

 dorso-lateral line (continuous with that of pronotum) on each parap- 

 side but not quite complete caudad ; median line of scutellum extend- 

 ing only to center, but there is a dot at meson at apex ; propodeum with 

 a line in the position of median and lateral carinae, cephalic margin 



