Systematic revision of American Glaresidae (Coleoptera: Scarabaeoidea) Gordon, Robert D. Hanley, Guy A. Insecta Mundi 2014 2014-01-10 2014 333 1 91 4NT7 Erichson 1848 [423,536,1571,1595] Insecta Glaresidae Glaresis Animalia Coleoptera 21 20 Arthropoda genus    1. Elytral striae raised, distinctly carinate, carinae nearly continuous ( Fig. 17A, C) ................... 2  — Elytral striae convex or nearly flat, not distinctly carinate, carinae reduced to short segments, or very short, serving only as setal bases ( Fig. 12A, 16E) ........................................................... 3   2(1). Posterolateral mesotibia with 4-5 spines on lateral margin, spinal bases widely separated ( Fig. 17D); metatibial surface with small, mostly oblique transverse ridges or carinae ( Fig.17F); size small, length 2.60 to 3.20 mm; body form short, stout, lateral margins of elytra slightly rounded medially ( Fig. 17A) .........................................................................................  G.  inductaHorn  — Posterolateral metatibia with 6 or more spines on lateral margin, spinal bases close together ( Fig. 18D); metatibial surface with coarse, dense armature composed of tubercles and ridges( Fig. 18F); size large, length 3.30 to 4.30 mm; body form comparatively more elongate, lateral margins of elytra not rounded medially ( Fig. 18A) ............................................  G.  canadensisBrown   3(1). Metasternal groove present, distinct ( Fig. 15D); southern Utah, Wyomng .................................. ......................................................................................................................  G. sabulosa , n. sp.  — Metasternal groove not visible or only slightly so ( Fig. 13D);  Arizona, southern California, South America............................................................................................................................ 4   4(1). Elytral striae flat, or nearly so, strial carinae reduced to setal bases ( Fig. 12C);  Arizona, southern California, South America......................................................................................................... 5  — Elytral striae raised, strial carina composed of widely separated carinal segments ( Fig.16E);  El Paso Co., Texas.............................................................................................  G. warneri , n. sp .   5(4). Posterior metatrochanteral margin serrate, with large tooth near metafemur ( Fig. 14H); posterior metafemoral margin with tooth ( Fig. 14H); South America ...........  G.  fritziMartinez et al.  — Posterior metatrochanteral margin not serrate, without large tooth; posterior metafemoral margin without tooth; not known from South America ....................................................................... 6   6(5). Outer margin of metatibia with pronounced, continuous, wide shelf-like projection extended about 1/2 width of metatibia ( Fig. 12F); mesotibia with 4 or 5 spines on external margin ( Fig. 12D); spines on posterosuperior metatrochanteral surface widely separated;  Kelso Dunes, San Bernardino Co., California........................................................................   G. arenataGordon  —  Outermargin of metatibia with posteromedian projection not shelf-like, usually not extended more than 1/3 width of metatibia ( Fig. 13G); mesotibia with 6 or more spines on external margin; spines on posterosuperior metrochanteral surface narrowly spaced ( Fig. 13H); Arizona...............................................................................................................  G.  zvirgzdinsiWarner South America 22 21 1 Arizona South America 22 21 1 Arizona El Paso Co. El Paso Co. 22 21 1 Texas Kelso Dunes San Bernardino Co. San Bernardino Co. 22 21 1 California Outer 22 21 1