Glaresis mendica Horn, 1885

Gordon, Robert D. & Hanley, Guy A., 2014, Systematic revision of American Glaresidae (Coleoptera: Scarabaeoidea), Insecta Mundi 2014 (333), pp. 1-91 : 38-39

Glaresis mendica Horn

Glaresis mendica Horn, 1885:117 ; Warner, 1995:267.

Distribution. Male. Length 3.0 to 3.5 mm, width 1.7 to 3.0 mm; body form short, robust, slightly widened from elytral base to apical 1/3 ( Fig. 24A ). Color dark brown. Head with clypeal surface and frons densely rugose, reticulate with irregular ridges, with scattered large, irregular tubercles, setae short, indistinct; vertex without basal carina, surface rugose, reticulate with very irregular ridges, without tubercles or setae. Clypeal apex weakly truncate, with large, evenly spaced tubercles, appearing dentate, lateral angles oblique, acute ( Fig. 24B ). Mandible pair symmetrical; mesal tooth strong; lateral prominence strong, pronounced; outer margin rounded. Pronotum with deep, long, transverse fovea in anterior 1/4 extended completely across pronotum, small, slightly transverse fovea on each side of middle in anterior 1/2, wide, deep fovea on each side medially near lateral margin, deep central furrow extended from base to transverse furrow; surface densely rugose, with dense setae-bearing carinae, carinae mostly straight in anterior 1/2, very irregular and mostly irregularly T-shaped in basal 1/2, setae decumbent, about 1/2 length of carina; anterior and lateral pronotal margins not bordered, all margins crenulate. Elytra with surface feebly shiny, densely microreticulate; all striae strongly carinate, carinae appearing continuous but narrowly interrupted adjacent to space between interval punctures, each carinal segment bearing an apical seta about 2/3 length of segment; intervals with deep round punctures ( Fig. 24C ). Metasternum long, feebly shiny, finely, densely microreticulate, median surface not tuberculate medially, laterally with irregular ridges forming reticulate pattern extended from mesocoxal cavity to metasternal apex, median area slightly depressed, with distinct median carina extended anteriorly from apical keel to, or nearly to, mesocoxae; metasternal groove strong, deep, inner margin abruptly tapered, outer margin ridged ( Fig. 24D ). Lateral protibial teeth evenly spaced. Mesotibia with 4 short, widely spaced spines laterally, tibia slightly projecting at apex ( Fig. 24D ). Posterior metatrochanteral margin with 3 small teeth; posterosuperior surface of metatrochanter with 2 large teeth, or bifid single tooth, outer tooth visible directly in ventral view ( Fig. 24G ), often both teeth visible in ventral view. Metafemoral surface with widely scattered, elongate, setae-bearing tubercles, microreticulate; width to length ratio 1.0:1.6, with wide flange on anterior margin; posterosuperior margin without teeth or with faint suggestion of single tooth. Metatibia broadly triangular, surface entirely microreticulate, with small, bifid tooth on outer margin postmedially, small teeth on outer margin extended from near base to bifid tooth, an irregular row of coarse tubercles extended from base nearly to apex medially, inner margin smooth, pubescent ( Fig. 24F ). Apical margin of 5th abdominal ventrite with broad, weak, barely visible emargination. Genitalia long, basal piece longer than parameres, proximal end curved; median lobe shorter than parameres, wider at middle than a paramere, slightly curved upward in apical 1/3, apex rounded in ventral view; parameres straight in lateral view, slightly sinuate on inner margin, apex bluntly rounded ( Fig. 24E ).

Female. Apex of 5th abdominal ventrite same as in male.

Variation. Length 3.0 to 3.5 mm, width 1.7 to 3.0 mm. Head sculpture varies from quite pronounced to somewhat reduced; metasternal ridges vary slightly in extent and degree of development.

Type locality. Arizona.

Type depository. MCZ.

Temporal distribution. May-July.

Geographical distribution. UNITED STATES. Arizona: Cochise Co., Chiricahua Mts., Tex Canyon, 5300'; Coconino Co., Sedona, 2 mi. north. New Mexico: Hidalgo Co., 37 mi. S. Animas, Douglas Road. ( CMNC) ( SMCC) ( USNM).

Remarks. See Remarks under G. paramendica . This is a rarely collected species discussed by Warner (1995). Gordon (1970) described the common Arizona species, G. gordoni Warner , as G. mendica , an error discovered and corrected by Warner (1995).

Figures

Figures 24A-24G. Glaresis mendica Horn. A) Habitus view. B) Clypeus and head surface. C) Elytral striae. D) Metasternum and mesotibia. E) Male genitalia. F) Metaleg, dorsal view. G) Metaleg. ventral view.