Gyretes torosus Babin, 2002

Babin, Jennifer & Alarie, Yves, 2004, Taxonomic Revision of Genus Gyretes Brullé (Coleoptera: Gyrinidae) from America North of Mexico, The Coleopterists Bulletin 58 (4), pp. 538-567 : 538-567

3. Gyretes torosus Babin , new species ( Figs. 14, 15 , 26 )

Notes About Type Material of Gyretes torosus New Species. The holotype is a male specimen ( USNM) glued to a point with the following labels: ARIZ. Yavapai Co., Convergence Oak Cr. and Verde R. 10 July, 1979. M.W. Sanderson UV light trap .

558 560 A79-9 [typed]/ Gyretes sinuatus Lec. Det. Sanderson 1983 / Gyretes torosus Babin, Det. J.J. Babin 2002 / Gyretes torosus Babin 2002 Holotype [red rectangular label]. The dorsal and ventral surfaces are relatively free of dirt. Body black. Penultimate tergite without midcaudal tooth Aedeagus and parameres glued to a rectangular point pinned beneath specimen.

The allotype is a female specimen (USNM) glued to a point with the following labels: ARIZ. Yavapai Co., Convergence Oak Cr. and Verde R. 10, July 10 1979. M.W. Sanderson UV light trap. A79-9 [typed]/ Gyretes sinuatus Lec. Det. Sanderson 1983 / Gyretes torosus Babin, Det. J.J. Babin 2002 / Gyretes torosus Babin 2002 Allotype [red rectangular label]. Body black. The dorsal and ventral surfaces are relatively free of dirt. Penultimate tergite without midcaudal tooth. Last three abdominal segments slightly dislodged to the right.

Etymology. The specific name ‘ torosus ’ is chosen to reflect the relatively larger size and and the more brawny shape of this species.

Diagnosis. This species is relatively robust, having a wider body than G. sinuatus and G. iricolor and is not as attenuated as G. iricolor . At 403 pronotum with evident micropunctures but microreticulation not distinct. Midcaudal tooth on the penultimate tergite lacking. Body outline ovate in lateral view. Female elytral apex does not extend along midline, but may be slightly produced ( Figs. 21, 23 ). Epipleura orange to darkbrown, generally darker than G. iricolor .

Description. Microsculpture and punctation. Pronotal microreticulation transversely elongated, not distinct at a magnification of 403. Microreticulation on the female elytral apex not distinct. Micropunctation evident on pronotum and elytra. Measurements ( Table 5).

562 Pronotum 1.3–1.6 times broader than head. Elytra 1.0–1.2 times broader than pronotum. Standardized body length 1.9–2.2 times greater than body width. Elytral pubescence broader than G. iricolor (0.3–0.4 mm). Female pubescent band is reduced to 2–4 hairs at elytral apex. Male protibia more strongly widened distally than G. iricolor , 2.2–2.7 times longer than wide.

Remarks. Body outline ovate in lateral view. Penultimate tergite may be sinuous but lacks a distinct midcaudal tooth. Female elytral apex at most slightly produced in lateral perspective.

Distribution. Arizona to Texas.

Material Examined. One hundred and ten specimens with the following label data:

ARIZONA: Guadalupe Canyon , SE Arizona, at light, 31.VII.1975, coll. Scott McCleve (6, UAIC) ; Peloncillo Mtns. , 33 mi. E. Douglas, at light, 17.VII.1973, coll. S. McCleve (3, UAIC) ; San Bernardino Ranch , SE Arizona, at light, 14.VII.1975, coll. S. McCleve (1, UAIC) ; Guadalupe Canyon , Cochise Co., at light, 2.VIII.1977, coll. S. McCleve (1, UAIC) ; Guadalupe Canyon , Cochise Co., 8.VIII.1983, coll. C.A. Olson (1, UAIC) ; Coconino Co., Oak Cr. Cmpgd, Red Rock X-ing, 14.VII.81, coll. J.C. Burne (3, UAIC) ; Kocineo Co. ( Presumed to be Coconino Co)., 8.2.62, coll. Don Rich (4, CISC) ; E. Verde R., Gila Co., 3 mi. N. Payson , Hwy 87, 20.VI.1977, coll. Folkerts and field class (2, UAIC) ; Salt River Canyon, Gila Co., 16.IV.1969, coll. H.M. Ohlendorf (1, TAMU) ; Greenlee Co., Big Lue Mountain, UV, 16.VII.79, coll. Olson, Sailowitz (1, UAIC) ; Navajo Co., 1 mi. E. Lakeside, at light, 2,090 m, 12.VIII.1978, coll. Scott McCleve (1, UAIC) ; Yavapai Co., Rd. 120, S. Village Oak Cr., UV light trap, 3–4.VIII.1983, coll. M.W. Sanderson (1, USNM) ; Oak Cr. , Deer Pass Crossing, Yavapai Co., SW Sedona, 11.V.1977, coll. M.W. Sanderson (3, USNM) ; Oak Cr., Deer Pass Crossing , Yavapai Co., UV light trap, 15.VII.1977, coll. M.W. Sanderson (1, USNM) ; Oak Cr., Cornville , Yavapai Co., UV light trap, 10.VII.1979, coll. M.W. Sanderson (2, USNM) ; Oak Cr., Cornville , Yavapai Co., at UV light trap, 8.VIII.1978, coll. M.W. Sanderson (1, USNM) ; Oak Cr., Baldwins Crossing , Yavapai Co., UV light trap, 19.VII.1977, coll. M.W. Sanderson (3, USNM) ; Oak Cr. , Yavapai Co., Red Rock, S. Sedona, 4.VIII.1983, coll. C.B. Barr (3, CISC; 5, LSAM) ; Yavapai Co., convergence Oak Cr. and Verde R., 9.VI.1977, coll. M.W. Sanderson (1, USNM) ; Yavapai Co., convergence Oak Cr. and Verde R., UV light trap, 10.VII.1979, coll. M.W. Sanderson (6, USNM) ; Camp Verde , Yavapai Co., 28.VII.1962, coll. W.W. Boyle, M.A. Goodrich (1, FEMP) ; Verde R., Yavapai Co., Campe Verde , UV light trap, 10.VII.1980, coll. M.W. Sanderson (3, USNM) ; Camp Verde , Yavapai Co., black light trap, 15.VII.1969, coll. A. and B. Hilton (7, INHS) ; Yavapai Co., 7.5 mi. ESE Camp Verde , W. Clear Cr. Cp., 3,500 ft, black light, 11.VII.1968, coll. G.W Forister (1, INHS) ; Verde R., Cottonwood , Yavapai Co., UV light trap, 19–20.VII.1981, coll. M.W. Sanderson (3, USNM) ; Red Tank Draw , Yavapai Co., 1.5 mi. E. jct 17–179 on rd. 645 to Beaver Creek, UV light trap, 10–11.VII.1982, coll. M.W. Sanderson (7, USNM) ; Beaver Cr., Yavapai Co., nr Montezuma Well , 14.VI.1985, coll. M.V. Sanderson (8, ROMC) ; Yavapai Co., 7 mi. S. Sedona, Village Oak Cr. , at light, 25–26.VII.1982, coll. M.W. Sanderson (10, USNM) ; Yavapai Co., 7 mi. S. Sedona, Village Oak Cr. , Porch light over funnel, 2–15.VIII.1982, coll. M.W. Sanderson (1, USNM) ; Yavapai Co., Coconino Natl. For. , Clear Cr. Campgrd, at black light, 29.VII.1983, coll. C.B. Barr (1, CISC; 2, LSAM) ; Yavapai Co., Rd. 120, 10 mi. S. Sedona, 1 mi. W., UV light trap, 5–9.VIII.1982, coll. M.W. Sanderson (2, USNM) . NEW

MEXICO: Carlsbad (1, USNM) ; E. Fort Gila R., Grant Co., Gila N.P., E. off Hwy 15, 7.VIII.1987, coll. C.B. and J.E. Barr (1, CISC; 2, LSAM) ; E. Fort Gila R., Grant Co., 27.VIII.1934, coll. Carl J. Drake (1, CISC; 1, LSAM). TEXAS: (1, CASC; 2, FMNH; 1

564 INHS); Ottine Palmetto State Park , 12–13.VIII.1963, coll. P.J. Spangler (3, USNM) ; San Marcos R., Gonzales Co., Palmetto State Park, 31.V.1983, coll. C.B. Barr (1, CISC).

Figures

Figs. 13–15. Selected structures of Gyretes. 13) Male genitalia of G. sinuatus at 703; 14–15) protarsus of G. torosus new species. 14) Female; 15) male.

Fig. 26. Known distribution of Gyretes torosus new species in America north of Mexico.

Figs. 20–23. Selected structures of female Gyretes. 20–21) Lateral habitus. 20) Gyretes iricolor; 21) G. sinuatus. 22–23) Apex of elytra, dorsal aspect. 22) Gyretes iricolor; 23) G. sinuatus.