114 
3. Pronotum as above; femora brown at tips or bases; segments 1 to 6 yellow. 
Stigma three times as long as wide; costa not or scarcely paler than 
BOIOIN A (sts Seine ae Pte Mee eee Bee Seo eee 11. jocularis Cresson. 
Stigma twice as long as wide; costa much paler than stigma. 
12. hoodi u. sp. 
4, Pronotum yellow; thorax otherwise black; abdomen black, except lateral 
third of segments after the first and venter.......-.-.--.--- 
5. Pronotum yellow; thorax and abdomen reddish yellow, marked with black. 
14. bivittata Norton. 
13. koebelei n.sp. 
Males. 
lemora altogether black, or at least hind pair. 
Pronotum and tegulie black. 
Posterior tibizx pale, strongly infuscated at tips. ...--. 5. siskhiyouensis n. sp. 
Posterior tibia strongly infuscated, nearly black...-.-.---- 1. lata Cresson. 
Pronotum black; tegulie pale; apical half of hind tibiw black . 8. banksi n. sp. 
Femora black basally, paling apically; pronotwm and clypeus black; labrum infus- 
Cai ip peta are eee afar jal oin oho ate ote eee fa ete repe tS ae aetna ate ee --- 9. idiota Norton, 
Jfemora pale, except sometimes tips of posterior pair. 
Abdomen, with basal segments, yellow ...--..------------ 
Abdomen altogether black dorsally. 
11. jocularis Cresson. 
MONTEL AOE Sot soe verele ee ene nee SEK ear 15. carolinensis uv. Spx 
Venter black. 
Pronotum and legs orange yellow..-.....-.....---- 16. luteola Norton. 
Pronotum and legs reddish yellow; genitalia strongly infuscated. 
17. occidentalis n. sp. 
Pronotum black, except extreme angles; legs and genitalia yellow. 
18. coloradensis nu. sp. ¥ 
INDEX TO SPECIES OF PRISTIPHORA. 
banksion.Sps 6 Olss- sees eecccae Sees ee Sal dlabracdoris  Nortols Ono. eee eee eee 2 
bivilbtaba Norton Ose. eee seco 14) lata Cressoniet) Ol = 2. sere as eee 4 
CaroliMeNnsis MSP. Gos... s22--— === -- 15 | Juteola Norton g) ..9. 22. -eteee oe eee 16 
Colonadensis asp arouee oe sees eee 18") murttelditie mesp: Ol see seas 6 
dyalinitspr.O) ssscesea: seene eee roe 107) migra n.yep. O Ales. See ee 1 
Hoods SPO AeA r-less ti- eee ee 13} |-occidentalis' nis: i) ee ees ik 
LEWOtAMNORGON Ms) UOrsae ae. oe eee 9) | relativasNorton 922222 ae ee 7 
identidem Norten=idiota. SISkIZOUENSIS N-SDs Gees eee ee by 
jocularis: Cresson! gyiQ sees = 2-42 --2= fi | sycophanita, Walsh 9 222552 5- 2 see 3 
koebeleimesp. 9 sho: 2225 ae se ee yatc. 13 | tibialis Norton=sycophanta. 
1. Pristiphora nigra new species. 
Female—Length 5.5 mm.; surface somewhat shining, head rather 
densely and finely granulate; clypeus scarcely emarginate, almost 
truncate; elevations, frontal and ocellar, almost obsolete; antennal 
fovea broad, circular, shallow; intercostal cross vein about its own 
length anterior to basal and strongly inclined; first transverse cubital 
wanting, venation otherwise normal; stigma not greatly broadened at 
base; apex of costa considerably enlarged; scopaof sheath rather long 
and dense; cerci short tapering; inner tooth of claw short, obtuse. 
Color black; tibix, except apices of posterior pair and bases of tarsi, 
lighter, inclined to whitish; wings strongly infuseated; veins, includ- 
ing stigma and costa, dark brown. 
One female. Easton, Wash. 
(Coll. U. S. Nat. Mus.) 
