24 
Lassus euure Ashm. has been reared from Pontania resinicola, and 
Pimpla ewure Ashm. from Pontania pyriformis. These lastare undoubt- 
edly parasitic upon the larvie of the gall makers. 
TABLE OF SPECIES. 
Females. 
Sheath broad at base, sharply acuminate at tip, and emarginate beneath......-. I 
Sheath as above, except that the tip is obtusely rounded...--........--.------: Il 
Sheath broad and rounded! at tip, scarcely taperin®-2-- 2 ..sese- = sees eee eee III 
Sheath narrow, clongate, regularly tapering to somewhat pointed tip.......-.-- IV 
T. Color in general black. 
Head, thorax, abdomen, and femora black; tegulie and mouth parts pale. 
1. cressoni n sp. 
Same, except that angles of pronotum are yellow and the femora are pale 
laterally ices ssi 2 eee cis oe eeiis adie eso asses 2. parva Cr 
Same, except that pronotum and legs are whitish and the orbits are broadly 
yellow. except on narrow inner margin.-...---...---- .. 3. nigrita n. sp. 
Same as last, except that orbits are entirely yellow; antenne yellow 
beneath and sheath but slightly emarginate -.....-- 4. pallicornis Nort. 
Color in general luteous. 
Claws very minutely cleft at tip. 
Central lobe of metanotum black; outer veins of posterior discals not 
MNGETSbiGiall ae ccm sem ree yaaa cen See eae en ae 5. agilis Cr. 
Centrallobe pale; outer veins interstitial _-........-.- 6. mellina Cr. 
Clawsicoarselly notched 22-254 5 s2ss4e- n= asses eee 7. nevadensis Cr. 
NseColorsblacki.ascs ds sce oy 45 een eshte ets tee See Ae eee Io a OremCavatdamh ISD. 
Color in general resinous. 
Frontal crest well developed. 
Stigma broad, rounded on lower margin. 
Crest bulbous: pectus palese=-- 4) 225 eee 9. resinicola n. sp. 
Crest narrow > pectus Dlack:=2=-- s22e.- shee 10. pectoralis n. sp. 
Stigmanarrow, acuminate. .............----.---- ll. acuminata n. sp. 
Hrontalicrestobsoletes. ..2o6 -24. acme sone Se ee oa 12. robusta n. sp. 
Ill. Color in general black. 
Orbits black; stigma narrow elongate .....-.---.------ 13. kincaidi n sp. 
Orbits broadly yellow; stigma brown ..:/...-.----.:--- 14. pisum Walsh, 
Orbits posteriorly yellow; stigma yellow. .._.......---- 15. bruneri n. sp. 
Color in general resinous. 
Mesonotum black, except scutellum; sheath broad, paddle shaped. 
16. pacifica n. sp. 
Mesonotum mostly pale; sheath somewhat blade shaped. 
17. pomum Walsh. 
IV. Clypeus nearly truncate, or very broadly and shallowly emarginate. 
Pronotum and venter of abdomen black. 
Me gules tolaielkt seecte- Rie ee a5, t oe ae ee eee 18. alra un. sp. 
Meeulee mM alons 33226 ces See a sets he eee ee ee 19. hyalina Nort. 
Pronotum and venter of abdomen pale ......-.--------- 20. truncata n. sp. 
Clypeus distinctly and more narrowly emarginate. 
Dorsum of thorax and abdomen black. 
Orbits black, or rarely slightly reddish brown. 
Venter of abdomen blackes-ee=s- essen =a ea- 21. atriventris n. sp. 
Menter of ‘abdomen palejso2 sss snes ape eae 22. californica n. sp. 
Orbits broadly yellow. 
ptiomarand Costa; brow ss. =s 2s eeee ee sees eee 23. gracilis n. sp. 
Stigmarand costashyaline=so-222) sesee cesses 24. stigmatalis n. sp. 
