. Bulletin - United States National Museum. Science. EEVISION OF NEAKCTIC TEEMITES. 23 mandibles black on tips. Eyes nearly round, almost diameter from lower margin, hardly tv/ice diameter from the hind margin; ocelli elongate, placed obliquely inward from ej^es. Antennae longer than width of head, of about 20 joints; the third darker but no longer than the second. Pronotum broader than head, plainly less than twice as broad as long, broadest in the middle, not rounded much on the pos- terior sides; anterior margin angularly emarginate, but not deeply. Wings pale, costal veins dark, radial sec
. Bulletin - United States National Museum. Science. EEVISION OF NEAKCTIC TEEMITES. 23 mandibles black on tips. Eyes nearly round, almost diameter from lower margin, hardly tv/ice diameter from the hind margin; ocelli elongate, placed obliquely inward from ej^es. Antennae longer than width of head, of about 20 joints; the third darker but no longer than the second. Pronotum broader than head, plainly less than twice as broad as long, broadest in the middle, not rounded much on the pos- terior sides; anterior margin angularly emarginate, but not deeply. Wings pale, costal veins dark, radial sector with four to six branches to costa; the first few are very long, median vein i-uns nearer to radial sector than to cubitus. Wing scale a httle longer than the pronotum. (PI. 2, fig. 2.) Head, pronotum, and abdomen with long erect hairs on the abdomen in rows near hind margin of each seg- ment. Length to tip of wing, 15 to 16 mm.; body, 8 to 9 mm. (Fig. 12.) Soldier.—Head castaneous, dark- er in front; mandibles black; legs pale, anterior tibiae usually darker; thorax castaneous above; abdomen paler. Head, from barely longer than broad to fully one and a half times as long as broad; in the long- headed forrfLS the sides are parallel; in forms the sides are more convex; labrum tiimcate; eyes distinct, behind the antennae; antennae fully as long as the man- dibles, about 16-jointed, the third joint full}^ as long as the fourth fifth togethe]', strongly chitin- ized, and narrowed at base; the mandibles not as long as width of head; teeth as in figure; in some. the points of the mandibles are more than in others; the last joint of the maxillary palpi much longer than the preceding, the gula is about half as wide in middle as in front; the pronotum fits closely over the base of the head; it is about twice as broad as long; the anterior margin is strongly, angularly indented in the mid- dle, and the anterior sides convexly oblique to the indentatio
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
