Glaresis paramendica Gordon and Hanley, 2014

Gordon, Robert D. & Hanley, Guy A., 2014, Systematic revision of American Glaresidae (Coleoptera: Scarabaeoidea), Insecta Mundi 2014 (333), pp. 1-91 : 39-40

Glaresis paramendica Gordon and Hanley , new species

Description. Male. Length 3.4 mm, width 1.8 mm; body form short, robust, slightly widened from elytral base to apical 1/3 ( Fig. 25A ). Color yellowish brown. Head with clypeal surface and frons densely rugose, reticulate with irregular ridges, with large, irregular tubercles throughout except small, round area at middle between eyes lacking tubercles, setae short, indistinct; vertex without basal carina, surface rugose, reticulate with very irregular ridges, without tubercles or setae. Clypeal apex weakly emarginate, with small, evenly spaced tubercles, appearing somewhat serrate, lateral angles oblique, acute ( Fig. 25B ). Mandible pair symmetrical; mesal tooth strong; lateral prominence strong, pronounced; outer margin slightly angulate. 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, mostly irregularly straight 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 dull, 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. 25C ). Metasternum long, dull, finely, densely microreticulate, median surface not tuberculate medially, laterally with short, irregular ridges not forming reticulate pattern, median area slightly depressed, with distinct median carina extended anteriorly from apical keel to, or nearly to, mesocoxae; metasternal groove wide, deep, both sides abruptly ridged ( Fig. 25D ). Lateral protibial teeth not evenly spaced, 2nd and 3rd teeth close together. Mesotibia with 4 short, widely spaced spines laterally, tibia slightly projecting at apex. Posterior metatrochanteral margin serrate with several teeth; outer trochanteral angle with large apical tooth; posterosuperior surface of metatrochanter with 2 large teeth, 1 large tooth visible directly in ventral view ( Fig. 25G ), usually both teeth visible. Metafemoral surface with widely scattered, elongate, setae-bearing tubercles, microreticulate; width to length ratio 1.0:1.6, with narrow flange on anterior margin; posterosuperior margin with single tooth. Metatibia broadly triangular, surface entirely microreticulate, with large, bifid posteromedian lateral projection, a row of small teeth on outer margin from near base to lateral projection, an irregular row of coarse tubercles extended from base nearly to apex medially, inner margin smooth, pubescent ( Fig. 25F ). Apical margin of 5th abdominal ventrite broadly, weakly emarginate, emargination barely visible. Male genitalia long, basal piece longer than parameres, strongly curved, proximal end curved; median lobe shorter than parameres, narrower at middle than a paramere, slightly curved upward in apical 1/3, tapered from base to apex, apex angled to middle, middle acute in ventral view; parameres curved in lateral view, slightly sinuate on inner margin, apex bluntly rounded ( Fig. 25E ).

Female. Apex of 5th abdominal ventrite truncate.

Variation. Length 3.2 to 3.4 mm, width 1.7 to 1.8 mm. One specimen was observed with 5 lateral mesotibial teeth. Teeth on posterosuperior margins of trochanter and metatibia usually easily visible in

direct view, but occasionally reduced in size, not visible in direct view.

Type material. Holotype female: Nevada: Carson City NV, Ash Cyn (Canyon) Burn , VI-10-1981, J. B. Knight, Reseeded burn ( CSCA) . Paratypes, 27: (2) same data as holotype; (2) same data as holotype, except “ Unburned area ;” (1) NV: Hwy. 844 and Toiyabe Nat. For., 5.VII.93, Lot 2 BF& JL Carr; (1) Nye Co., 5mi N 10mi E Currant, 7000' Current (sic) Summit , III-28 to X-1-1982, GBY, Derham Giuliani, Collected in Ethylene glycol pit trap; (2) Nye Co., Toquima Range, Charnock Pass , 6 mi. N, 15 mi. E Carvers, 8300', IX-1986 - IX-1987, D. Giuliani, pit trap; (1) California: (1) Mono Co., east side Big Alkali Lk., sand dunes, VI-16 to VIII-17-79, Guiliani, antifreeze pit trap; (1) Mono Co., 6900', Long Valley, Big Alkali Lake , sand dunes, X-24-1982 to X-18-1983, Antifreeze pit trap, sand dunes, D. Giuliani; (1) Idaho: Butte Co., 6 mi. S. Howe, Vi-II-1981; (1) 19 Km. N. of Parker , 7.vi.06, Lot 2, BF& JL Carr; (1) Owyhee Co., Bruneau Dunes, 3 km NE Bruneau, 21 June , 1982, Steiner , Gordon & Whitehead collrs. Canada. (4) British Columbia: (1) BC. Green Mtn. , Old Apex Mtn Rd , 18.VI. 1932, and 23.VII.1932, H Kirk, fall trap open south slope, 3000' el.; (8) BC. Keremeos Creek, 2000' El. , 16.VII.1932, 18.VI.1932, and 23.VII.1932, H. Kirk, fall trap sage brush flat. ( BGDC) ( CASC) ( CNIC) ( CSCA) ( JCIC) ( UBCV) ( USNM) .

Other specimens. 6: (2) California: Calaveras Co., 2.7 mi. N Camp Connell, Vi-22-1975, Fred G. Andrews ; Inyo Co., 12 mi. E. Big Pine, Inyo Mts., 7700', I-30 to VIII-21-82, D. Giuliani, Antifreeze Pitfall Trap. (1) Colorado: Fremont Co. , 4 mi. NE Canon City. (1) Nevada: Clark Co. , Newberry Mountains , Grapevine Canyon , 35 o 14' N, 114 o 42' W, elev. 2360 ft., 20-IX-2005, S. M. Clark; (2) Wyoming: (Lincoln Co.) Kemmerer , June 1963, R. Parmenter. ( BYUC) ( RAAC) ( USNM) ( WBWC) .

Remarks. Glaresis paramendica has a distinctly more northern distribution than does G. mendica and is more frequently collected. This species has a roughly sculptured surface most resembling that of G. mendica . It is distinguished from that species primarily by outer angle of metatrochanter bearing a large tooth; surface ridges on vertex of head irregularly straight, not T-shaped; color yellowish brown; and basal lobe of male genitalia apically acute. The ventral surface of G. mendica as a whole is noticeably more heavily rugose than that of G. paramendica . Both of these species are distinguished by the presence of 2 large teeth on the superior metatrochanteral surface, a character that distinguishes them from all other members of subgroup B, mendica group, except G. bautista . See Remarks under that species.

The 2 California paratypes are from the same Mono Co. area as several specimens of G. california . The specimens from Kemmerer, Lincoln Co., Wyoming, are apparently this species, but not included as paratypes.

Etymology. The species is named for its similarity to G. mendica .

Figures

Figures 25A-25G. Glaresis paramendica, new species. A) Habitus view. B) Clypeus and head surface. C) Elytral striae. D) Metasternum with metasternal groove. E) Male genitalia. F) Metaleg and trochanter, dorsal view. G) Metaleg and trochanter, ventral view.