144 MISCELLANEOUS FOREST INSECTS. 



furrows not well defined; ocellar basin practically wanting; postocellar area well 

 delined, the postocellar furrow curved; head with small, distinct, rather close punc- 

 tures; antennae rather slender, third joint distinctly longer thaji fourth; venation 

 nearly as in montanicola (Plate XXVI, fig. 3); sheath and saw as in Plate XXIV, 

 figure 4, and Plate XXIII, figure 10. Color reddish-yellow; antennae above, inter- 

 ocellar area with two prongs before, posterior face of mesoscutum, metathorax (except 

 scutelluni), 'Vnd tergum (except apex and side;) black; wings hyaline, iridescent; 

 venation yellowish pallid. 



Type locality. — Nevada. One female. 



Type. — Cat. No. 13475, V. S. National Museum. 



Hoplocampa (Hoplocanipa) xantha n. sp. 

 (Plate XXIII, fig. 9; Plato XXIV, fig. 1.) 



Female. — Length 4 mm. Labrum rather narrow, broadly rounded; clypeus some- 

 what squarely emarginate, lobes broad, subtruncate; supraclypeal area shining, rather 

 strongly convex; middle fovea deep, well defined, rather small; antennal furrows inter- 

 rupted by the rather distinct crest; ocellar basin very shallow, practically wanting; 

 postocellar area somewhat convex, narrowing slightly posteriorly; postocellar furrow 

 somewhat arcuate; front shining, with small, separate, well-defined punctures; antennae 

 rather robust, third and fourth joints equal; venation of fore v/ing about as in mordani- 

 cola (Plate XXVI, fig. 3), but the stigma is broader, the second and third cubital cells 

 subequal in length; upper discal cell much exceeding the lower on the outer margin; 

 sheath and saw as in Plate XXIV, figure 1, and Plate XXIII, figure 9. Color red- 

 dish-yellow; antennre and basal part of tergum brownish; wings hyaline, iridescent; 

 venation yellowish-pallid . 



ParatojJO types indicate that the tergum, except apex and sides, is normally black; 

 venation normally as in halcyon (Plate XXVI, fig. 2), with a narrower stigma. The 

 in'terocellar area may be black; the middle fovea smaller than in type. 



Type locality. — Ottawa, Canada. Four females from the Ashmead 

 collection. 



Type.— Cat. No. 13478, U. S. National Museum. 



Hoplocampa (Hoplocampa) occidentalis n. sp. 

 (Plate XXIV, fig. S; Plato XXV, flg. 5.) 



Female. — Length 4 mm. l.abrum narrowly rounded apically; clypeus angulately 

 marginate, lobes triangular, narrowly obtuse; supraclypeal area convex dorsally, 

 shining; middle fovea spreading over the antennae, shallow; antennal furrows inter- 

 rupted by the broad rounded crest; ocellar basin large, well defined, rectangular in 

 outline; postocellar area scarcely narrowed posteriorly, flat; postocellar furrow nearly 

 straight; front with rather close small punctures; antenmc rather robust, the third 

 and fourth joints equal; venation nearly as in montanicola (PI. XXVI, fig. 3); sheath 

 as in Plate XXIV, figure 8; sawnotexserted. Color reddish-yellow; antennas brownish 

 above; interocellar area, large spot on mesoprescutum, small spots on mesoscutum, 

 the metanotum, and the tergum (exc^^t sides and apex) black; wings hyaline, iri- 

 descent; venation very pale brown, stigma and costa pallid. 



Paratypes show that the mesonotum may be entirely pale, or the mesoscutum may 

 have two spots on each lobe. The black of the interocellar area is wanting in some 

 specimen;?. 



Male. — Length 3 mm. Very like the female. Hypopygidium subtruncate, with 

 an angidate middle. The series shows the color to vary as follows: Mesoprescutum 

 without black, or spotted; mesoscutimi spotted or not; interocellar area pale or black. 

 In the Oregon specimens the head and mesonotum are usually entirely pale. 



