. Smithsonian miscellaneous collections. rm of all three species is slender in both sexes,cylindrical, with the head concealed from above by the pronotum. Thepronotum is longer than wide with the sides parallel on more thanthe caudal half and broadly rounded in front. The elytra are slightlynarrower or as wide as the pronotum, subparallel as far as the originof the declivity, sometimes slightly tapering posteriorly; moderatelybroadly rounded behind. Length and relative proportions. (Dorsal aspect).—Gnathotrichus materiarius Fitch. Length of the body (elytra and pronotum; head concealedfrom abo
. Smithsonian miscellaneous collections. rm of all three species is slender in both sexes,cylindrical, with the head concealed from above by the pronotum. Thepronotum is longer than wide with the sides parallel on more thanthe caudal half and broadly rounded in front. The elytra are slightlynarrower or as wide as the pronotum, subparallel as far as the originof the declivity, sometimes slightly tapering posteriorly; moderatelybroadly rounded behind. Length and relative proportions. (Dorsal aspect).—Gnathotrichus materiarius Fitch. Length of the body (elytra and pronotum; head concealedfrom above), mm. The body is times as long as the width of the pronotum. Width of pronotum, mm. The elytra are times as long as the pronotum. Examined specimens, retusus Lee. Length, mm. The body is times as long as the width of the pronotum. Width of the pronotum, mm. The elytra are times as long as the pronotum. Examined specimens, 10. i6 SMITHSONIAN COLLFXTIONS VOL. 82. s> o. ^ ^ . n oj^ ? tr CO • ^ e i S ^ o XI 3 r (u pJJ c c S » St,- ,^ CO a^^ S 15 3 ?-•s!~.jj- B E Mg. o 1111 o ^\2 3 .2 4) =^E ho •o S-^ •T3 k. 3 fe to O u^ . ? 2 ?a^Q,gs C i 3 . ?i: o. •-«« 2 aC>< .. ?5: S-ii. 2 c C e « o u 3 (J til M« ..^ I ^?^pS -1 ^ u C 5 ^j , oo , ?cup .a t)-- § •-. S c E « p^-S 3 o rt-o E a us^-^r - NO. 10 MORPHOLOGY OF GNATHOTRICHUS—SCHEDL 17 Gnathotrichus sulcatus , mm. The body is times as long as the width of the of the pronotum, elytra are times as long as the specimens, 10. Head
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
