Eleodes (Promus) madrensis Johnston, 2015

Johnston, M. Andrew, 2015, A Checklist and New Species ofEleodesEschscholtz (Coleoptera: Tenebrionidae) Pertaining to the SubgenusPromusLeconte, with a Key to United States Species, The Coleopterists Bulletin 69 (1), pp. 11-19 : 11-19

Eleodes (Promus) madrensis Johnston , new species

( Fig. 3 )

Diagnosis. This species can be readily distinguished from other members of Eleodes , subgenus Promus , by the presence of tomentose pads interrupting the plantar surface on the first and second protarsal segments in males, the shape of the pronotum being widest anterior to midline, attenuate posteriorly, and by having a strongly declivous prosternum with a small recurved process at the tip. It most closely resembles E. knullorum and Eleodes subnitens , as discussed above.

Description. Male. Length 18–23 mm; width 7–9 mm (n = 21). Body elongate oval, widest near middle of abdomen, glabrous. Head: Antennae clavate, moderately long, extending beyond pronotum by approximately 3 segments, segments 3–7 longer than wide, segments 8–11 at least as wide as long. Mentum transversely hexagonal; anterior margin blunt, half as wide as posterior margin; lateral angles lined with long, dark setae. Maxillae heavily punctate, clothed with scattered golden setae; stipes bearing long, dark setae; palpifer rounded, produced ventrally, with long, dark setae; terminal palp segment triangular, distal margin as wide as segment is long; galea and lacinia covered with dense, yellow setae anteriorly. Ligula with 2 dense brushes of yellow setae dorsally. Mandibles heavily punctate laterally; punctures obsolete anteriorly. Head subparallel, narrowing anteriorly before antennal insertion and posteriorly behind temples, moderately punctured evenly throughout; labrum transverse, deeply sinuate anteromesally, densely covered with large punctures, clothed with yellow setae densest along anterior margin; clypeus completely fused, frontoclypeal suture entirely visible; postgenae clothed with sparse, yellow setae and punctate, punctures becoming confused mesally and forming transverse stria that do not extend to submentum; eyes elongate, slightly constricted by epistomal canthus, ventral lobe positioned slightly anterior to dorsal. Thorax: Pronotum quadrate, rounded laterally, slightly wider than long; widest slightly anterior to midline; anterior angles acute, distinct, projecting antero-laterally; lateral margin inflexed immediately after anterior angles, then laterally inflated, becoming wider than elytral base, posterior half sinuate; posterior margin slightly narrower than elytral base; posterior margin slightly and evenly rounded; disc evenly convex, with small, scattered, moderately dense punctures. Prosternum narrow between coxae, about half the width of coxal opening, with a shallow median furrow; strongly declivous immediately anterior of coxae, with a short, rounded, recurved process strongly appressed to anterior margin of mesosternum; clothed with scattered, short, golden setae. Scutellum moderately large, about twice as wide as long; adorned with several large, shallow punctures. Elytra glabrous, fused medially; moderately densely punctate; punctures arranged in linear striae; striae very inconspicuously and slightly depressed; elytral intervals bare and impunctate. Epipleura moderately wide, same width as pseudepipleura, traceable to posterior margin of thorax, epipleura and pseudepipleura contiguous and indiscernible thereafter; pseudepipleura ending near midline of 5 th visible sternite. Hind wings absent. Legs: Relatively long. Profemora clavate, moderately punctate throughout; each puncture bearing a single golden brown seta; armed with a single, acute tooth on anterior face; tooth positioned about 1/4 the femoral length from apex, angled anterio-laterally. Protibia with similar punctation and setation as femora; ending with 2 apical spurs of similar length, each about 2/3 as long as first protarsal segment. Protarsi 5-segmented; segments 1–4 of similar length, segment 5 as long as the 3 preceding segments; segments 1 and 2 with yellow tomentose setal pads interrupting plantar surface; segments 3–4 with golden setae lining the apico-lateral margins of plantar groove; segment 5 with plantar groove fully lined with yellow-brown spicules. Mesothoracic legs similar to prothoracic legs, but lacking the femoral tooth and tomentose pads on tarsal segments 1–2; segments 1–4 with golden setae lining the apico-lateral margins of plantar groove. Metothoracic legs elongate; femora reaching the posterior margin of 4th visible sternite, not toothed; tarsi 4-segmented, each segment with yellow-brown spicules lining lateral margins of plantar surface.

Abdomen: With 5 visible sternites; sternites 1–3 connate, bearing scattered, small punctures; sternites 4–5 hinged laterally with intersegmental membrane conspicuous, moderately densely punctured. Intercoxal process transverse, rectangular; 1.5 times as wide as mesocoxal diameter. Terminalia: Adeagus simple; basal piece cylindrical, parallel-sided, rounded anteriorly; fused parameres approximately 3/4 as long as basal piece, triangular; dorsal base of parameres deeply bisinuate, with sharply acute anteriorly oriented lateral points; lateral margins of parameres evenly convergent; distal end of parameres rounded, laterally compressed. Clavae 1/2 the length of parameres; longitudinally curved, concave in distal half; distal margin rounded, flattened, vertically oriented.

Female. Length 23–26 mm; width 8–10 mm (n = 37). Similar to male, body generally larger, abdomen slightly expanded. Profemora unarmed but bluntly sinuate distally. Protarsal segments 1–2 without tomentose pad; all tarsal segments with golden brown setae along antero-lateral margins of plantar groove. Terminalia: Coxites trapezoidal, elongate, twice as long as wide, dorsally concave; mesally appressed, produced apical angle acutely produced, triangular; lateral and distal margins clothed with long, yellow setae. Gonostyles as wide as long, rounded, crowned with long, yellow setae.

Variation. The morphology of this species is fairly consistent, though the tarsi are sometimes abraded, likely due to specimen age, which can obscure the male setal pads.

Distribution. Northern Sonora, Mexico; southwestern New Mexico, southeastern to central Arizona, United States.

Etymology. The specific epithet madrensis is derived from the Madrean archipelago, where this species is found.

Remarks. Specimens of Eleodes madrensis are frequently found in natural history collections, but tend to be interspersed with material identified as E. subnitens and E. knullorum . See Diagnosis and Key for means to separate these taxa. K. W. Brown was the first tenebrionid worker to diagnose the difference between E. madrensis and E. subnitens , indicated in his collection by the determination label of ‘ Promus possibly new species.’ The type specimen has therefore been selected from his original series of specimens from Ramsey Canyon.

Type Material. Holotype (male) first label “ARIZ., Cochise Co.,/ Huachuca Mts. , Miller / Canyon. 5-VIII-1971 /ex. R.L. Dunn ” second label “Purchased 1971 from/ Russell D. Dunn ” third label green disc indicating specimens formerly of K. W. Brown Collection, deposited in CASC.

Paratypes. 57 marked with blue paratype labels, 9 with same information as holotype, 5 males, 4 females, 1 with additional label “ Eleodes (Promus) /Poss. N. SP./det KWB, ‘82” ADSC ; “ Ramsey Canon / Huachuca Mts / Ariz. WH Mann ” “WM Mann 1954/ Collection ” 1 male, 2 females, USNM ; “ Madera Cn / Pima Co. / Arizona ” “ Dr Lenczy / X.1982 ” 2 males, USNM ; “ Palmerlee /9.18.07

Ariz. ” “ Coll. By / HAKaeber” “WM Mann 1954/ Collection” 1 male 1 female, USNM ; “ Huachu. Mtns /7.11.02 Ariz.” “Miller Can./HAKaeber” 1 female, USNM ; “ Palmerly / Cochise Co. /Ariz.” “Brooklyn/ Museum/Colln. 1929” 1 male, USNM ; “ Portal , AZ/ 7.20.44/ W.W. Jones ” “branchus” 1 female, USNM ; “ Arivaca / Pima Co. / Arizona ” 1 female, USNM ; “ ARIZONA: Santa Cruz Co. / Madera Canyon / 24-VIII-1980 night/ T.P. & T.A. Friedlander,/and P.W. Kovarik ” 1 female, TAMU ; “ USA:AZ, Pima Co. / Sta Rita Mtns N31°45.794′ / W110°50.798′ 4336ft / 26-VII-2013 W.B.Warner ” 1 female WBWC ; “ USA:AZ, Yavapai Co. 12km /SW Prescott, headlamping/34.4576° -112.5199° 5700ft / 23- VIII-2014 M.A. Johnston ” 1 male, 2 females, MAJC ; “ MEXICO, Sonora /16.5 air km ENE of/ Bacadehuachi / 29.844444, -108.976944 / 2-VIII- 2012 1680m /leg. T.R.Van Devender ” “sycamore- Cupressus /arizonica /riparian forest/on slope” 2 females, ASUHIC ; “ USA:AZ Cochise County / Ramsey Canyon Nature Preserve /ex: side of cabin at night/ N31.446° W110.314° / Jul 1 2012 EK Moody” 1 male, ASUHIC ; “ Mexico, Sonora / Mt. Huachinera / Rancho Madrono /vi-25-81 2200m / McCleve & Jump” 3 males 4 females, OSUC ; “NM: Hidalgo Co,/ Animas Mts. /Indian Cr/vi-6-80 1828m /Scott McCleve” 1 female, OSUC ; “AZ: Graham Co. / Gila Mts. / Bonita Creek /vi-13-79 1164m /Scott McCleve” 1 female, OSUC ; “nr. Portal, Cochise /Co., AZ/8-25-70/ S. McCleve ” 1 female, OSUC ; “Chiricahua M.,/29.VIII.60 Ar.” “SW res/sta.” “Collr. C.A./Triplehorn” 1 female, OSUC ; “AZ, Cochise Co. / Huachuca Mtns. /Copper Cn 1882m /vi-10-78/Scott McCleve” 1 male, OSUC ; “ Huachu. Mts / Ariz ” “ Miller Can /HA. Wenzel” “ H.W. Wenzel /Collection” 1 male, 1 female, OSUC ; “ Huachuca mts.,/ Ariz. 18-VIII-71/Ramsey Canyon” “D.J. & J.N./Knull Collrs.” 1 female, OSUC ; “ Madera Can. / Santa Rita Mts. / Ariz. 17-VI-70” “W.E. & C.A./Triplehorn/Collectors” 1 female, OSUC ; “AZ:STA CRUZ Co. / Santa Rita Mts. / Madera Cn/v-31-79 1499m /Scott McCleve” 1 female, OSUC ; “AZ- Cochise Co. / Cochise Stronghold / DBrzoska 12-VIII-1982 ” 1 male 1 female, OSUC ; “ Sta. Catalina Mts.,ARIZ. / Molino Basin 4400’/ 16-VI 1970 ” “W.E.&C.A./Triplehorn/Collectors” 1 male, OSUC; AZ: Cochise Co. /Huachuca MtsCop-/per Cn vi-6-77/Scott McCleve” 1 female, OSUC ; “ Arizona, Madera / Cn. Santa Rita Mts. / Santa Cruz Co. / 6200 ft. 1-2.VIII.52” “ H.B. Leech / J.W. Green /Collectors” 1 female, CASC ; “ 6000 ft Mt. / Washington ” “ Nogales Ariz / J.A. Kusche / July 1919 -17” “Van Dyke/Collection” 1 male 1 female, CASC ; “ Santa Rita Mts. / Ariz. 5 to 8000ft. /June, F.H. Snow” “Blaisdell/Collection” 1 female, CASC ; “ 31°25′30″ N 111°11′30″ W/ USA, Arizona, Sta Cruz Co/Sycamore Cyn, 26:III:2000/Cols. K.Will, W.Moore,/ K.Ober ” 1 female, RLAC ; “ Ariz., Maricopa / Co. Red Mountain / VI-22-2000 / K.Will col.” 1 female, RLAC ; “ Arizona, Gila Co. / Tonto Natural Bridge / VI-12:14-88 at night/ R.L. Aalbu col.” 1 female, RLAC ; “ USA:AZ. Gila Co. / Pinal Mtn. Rec. / Area ( Pine-Oak )/ VII-28-1991 ” 1 female, RLAC .

Figures

Fig. 3. Eleodes madrensis. A) Holotype male, dorsal habitus, scale bar = 1 cm, B) Lateral habitus, C) Paratype female, dorsal habitus, D) Paratype female, terminalia, dorsal view, scale bar = 1 mm, E) Paratype male, fore tarsus, ventral view.