Sept. x 8 97 ] MacGillivray : New Species OF Tenthredo. 107 
base of the mandibles, a spot on the pronotum, deeply angulate beneath, the 
mesothorax and the metathorax except the scutellum, a spot on the pleurae 
t ie pectus, a spot above the posterior coxae, the basal one-half of the basal 
plates, a line on the base of the first abdominal segment, and a spot on the 
apex of the femora; with the following parts rufous : the apical segments of 
the abdomen, the apex of the posterior tibiae and the posterior tarsi; the cly- 
peus squarely emarginate; the third segment of the antenna twice the 
ength of the fourth; the wings yellowish hyaline; the veins blackish; the 
the costa and the base of the stigma luteous; the apex of the stigma brown- 
isi. Length, ii mm. Habitat.—Olympia, Washington (Trevor Kincaid.) 
. . .... ,. , magnatus, sp. nov. 
7. erior 1 ias black. $ .—Black, with the following parts yellowish white • 
the clypeus, the labrum, the mandibles except at apex, the cheeks, an inter- 
lupted line on the pleurae, a line on the collar, a spot on the tegulae, a spot 
above the posterior coxae, the sides of the basal plates, a spot on the pectus, 
t e coxae, the trochanters, the femora except a black line above, the front and 
middle tibiae beneath, the venter, and a narrow margin on the apex of the 
second and third abdominal segments; the clypeus narrowly and squarely 
emarginate; the third segment of the antennae one-third longer than the 
fourth; the wings hyaline, the apical third smoky; the veins, including the 
costa and the stigma, black. Length, 13 mm. Habitat.—Olympia, Wash¬ 
ington (Trevor Kincaid'). 
Posterior tibiae in part pale above. jg 
18. Four anterior tibiae entirely pale.. 
Four anterior tibiae with a black line above. $ Black, with the following 
parts yellowish-white: the clypeus, the labrum, the mandibles except 
at apex, the cheeks for two-thirds the length of the eye, the palpi, the 
tegulae, a broad mark on the collar, an oblique spot on the pleurae, a 
spot on the pectus, a spot above the posterior coxae, the sides of the 
basal plates, the coxae and the trochanters except a black line above, the 
ront and middle femora, the tibiae and the tarsi except a black line above, 
and the posterior femora (becoming rufous towards the apex) except a black 
me above; the following parts rufous: the posterior femora and tibia and 
tea domen beyond the basal plates; the clypeus squarely emarginate; the 
third segment of the antenna twice the length of the fourth; the wings hy- 
a me, the veins black; the costa and the stigma luteous, darker at their junc¬ 
ture. Length, 10.5 mm. Habitat-Olympia, Washington (Trevor Kincaid). 
1 his species has been sent to some correspondents under the name rubel- 
loides . 
9. Collar pale. .![’’[*’****’’’**’*’ . messica, sp. nov. 
Collar black. -Black, with the following parts yellow*:’the clypeus,* the 
labrum, the mandibles except at tip, the cheeks, the tegula, a spot on the 
posterior part of the mesopleurae, a spot above the posterior coxae, a vertical 
me beneath the posterior wings, the sides of the basal plates, the basal mem¬ 
brane and the coxae, trochanters, and front tibiae except a black line above* 
6 following parts rufous: the abdomen, including the venter beyond the’ 
asal plates, the middle and posterior femora except a black line above, the 
