Ambrysus buenoi Usinger, 1946

Reynoso-Velasco, Daniel & Sites, Robert W., 2018, Revision of the Ambrysus pulchellus Montandon species complex (Heteroptera: Nepomorpha: Naucoridae), Zootaxa 4442 (3), pp. 351-377 : 353-356

Ambrysus buenoi Usinger

( FIGs. 1–2 )

A. buenoi Usinger 1946 : Univ. Kans. Sci. Bull., 31: 199–200 (original description).

A. buenoi: De Carlo 1950 , An. Soc. Cient. Argent., 150: 12 (species list, distribution).

A. buenoi: La Rivers 1951 , Univ. Calif. Publ. Entomol., 8: 310–312, 336 (supplemental description, habitus photo).

A. buenoi: La Rivers 1953a , Univ. Kans. Sci. Bull., 35: 1284, 1287, 1309–1311, 1342–1343 (key, excerpt from supplemental description, habitus photo).

A. buenoi: La Rivers 1953b , Wasmann J. Biol., 11: 94 (morphology).

A. buenoi: La Rivers 1965 , Biol. Soc. Nev. Occas. Pap., 4: 5 (subgeneric assignment, distribution).

A. buenoi: La Rivers 1971 , Biol. Soc. Nev. Mem., 2: 66 (species list).

A. buenoi: Polhemus & Polhemus 1988 , Catal., p. 523 (species list).

A. buenoi: Sites 1991 , Southwest. Nat., 36: 357 (distribution).

A. buenoi: Davis 1996 , Southwest. Nat., 41: 3–7, 9, 14, 22, 24 (key, supplemental description, distribution, biology).

Diagnosis. ThIs spEcIEs cAN bE dIsTINGuIshEd fROm ThE OThER spEcIEs IN ThE cOmpLEx by ThE fEmALEs wITh ThE pOsTERIOR mARGIN Of ThE SGP wITh A wIdE cENTRAL cONcAvITy ANd sLENdER pOsTEROLATERAL cORNERs pROjEcTEd pOsTERIORLy ( FIG. 1F ). ThE LATERAL mARGINs Of ThE SGP ARE NOT REfLExEd dORsALLy ANd ThE pOsTERIOR mARGIN Of LATEROsTERNITE VI Is ALmOsT sTRAIGhT ( FIG. 1F ). MALEs Of A. buenoi pREsENT ThE AGP wITh A sLENdER bAsAL hALf ANd AN ALmOsT uNIfORmLy wIdENEd dIsTAL hALf ThAT TApERs TO AN ObTusE ApEx ( FIG. 1B ). ThE psEudOpARAmEREs hAvE A mEdIAL cONvExITy ANd TApER TO A pOINTEd ApIcAL LObE ( FIG. 1C ). ThE scuTELLum Is usuALLy A NEARLy uNIfORm LIGhT OR mEdIum bROwN cOLOR pATTERN.

Discussion. ThIs spEcIEs wAs dEscRIbEd bAsEd ON A sERIEs Of ONLy fOuR spEcImENs fROm ThE sOuThERN UNITEd STATEs. LA RIvERs (1951) INdIcATEd ThAT ThE fEmALE ALLOTypE ANd TwO mORE pARATypEs wERE dEpOsITEd IN ThE R. L. UsINGER cOLLEcTION. ThE ALLOTypE Is cuRRENTLy hOusEd AT ThE EMEC, whEREAs ThE OThER TwO pARATypEs ARE IN ThE cOLLEcTION Of ThE USNM. ThE spEcImEN dEsIGNATEd by UsINGER As ThE hOLOTypE bORE A LAbEL ORIGINALLy IdENTIfyING ThE spEcImEN As Ambrysus mexicanus MONTANdON. BEcAusE ThIs spEcImEN hAd bEEN IdENTIfIEd by J. R. dE LA TORRE- BuENO, UsINGER NAmEd ThE spEcIEs AfTER hIm. EvEN ThOuGh LA RIvERs (1951) ExAmINEd A mALE spEcImEN (NOw AT EMEC) ANd pROvIdEd ThE chARAcTERIsTIcs Of ThE AGP, hE dId NOT ILLusTRATE ThE sTRucTuRE IN hIs wORK ON ThE Ambrysus Of MExIcO (LA RIvERs 1953A). IT wAs IN ANOThER sTudy (LA RIvERs 1953b) IN whIch hE ILLusTRATEd ThE AGP bAsEd ON A LARGE sERIEs Of spEcImENs cOLLEcTEd IN FORT DAvIs, TExAs.

SOmE spEcImENs Of A. buenoi cAN pREsENT A fAINT dENdRITIc pATTERN ON ThE cORIum ANd cLAvus Of ThE hEmELyTRA, sImILAR TO ThE cLEARLy vIsIbLE pATTERN ON ThE scuTELLum Of A. californicus ; hOwEvER, ThIs pATTERN Is NOT pREsENT ON ThE scuTELLum Of A. buenoi .

Variation. SOmETImEs mALE spEcImENs pREsENT ThE psEudOpARAmEREs TApEREd TO A ROuNdEd ApIcAL LObE. ThE scuTELLum cAN bE mORE dARKLy cOLOREd OR ExhIbIT A hETEROGENEOus pATTERN Of bROwN TONEs ( FIG. 1A ).

Type locality. UNITEd STATEs: TExAs: BREwsTER CO., RIO GRANdE .

Repository. HOLOTypE Is hOusEd AT ThE USNM.

Distribution. IN ThE UNITEd STATEs, ThIs spEcIEs Is dIsTRIbuTEd IN sOuThERN NEw MExIcO ANd wEsTERN TExAs, IN ThE fAR sOuThEAsTERN AREA Of ThE BAsIN ANd RANGE physIOGRAphIc pROvINcE. IN MExIcO, ThIs spEcIEs Is dIsTRIbuTEd IN NORThwEsTERN ChIhuAhuA (sOuThERN ExTENsION Of ThE BAsIN ANd RANGE physIOGRAphIc pROvINcE), IN ThE MExIcAN PLATEAu bIOGEOGRAphIc pROvINcE ( FIG. 2 ). LA RIvERs (1951) REpORTEd ThIs spEcIEs fROm SAN ANTONIO IN MExIcO bAsEd ON A mALE spEcImEN AT EMEC, buT NO INfORmATION AbOuT ThE sTATE wAs GIvEN ON ThE spEcImEN LAbEL; ThEREfORE, NO spEcIfIc LOcALITy wAs pROvIdEd. DAvIs (1996) REpORTEd ThE sAmE spEcImEN, buT hE AscRIbEd SAN ANTONIO TO ThE sTATE Of SONORA, IN ThE sOuThERN muNIcIpALITy Of ÁLAmOs. ThIs sITE Is cONsIdERAbLy sEpARATEd fROm ThE U.S. LOcALITIEs whERE A. buenoi hAs bEEN cOLLEcTEd; Thus, wE cONsIdER ThIs A mIsINTERpRETATION Of ThE LOcALITy dETAILs by DAvIs (1996). WE ExAmINEd ThE sAmE spEcImEN REpORTEd by LA RIvERs ANd DAvIs ANd ALsO fOuNd ANOThER spEcImEN wITh ThE sAmE INcOmpLETE INfORmATION duRING A vIsIT TO ThE CALIfORNIA AcAdEmy Of ScIENcEs. ThERE Is A SAN ANTONIO TOwN IN ThE MExIcAN sTATE Of ChIhuAhuA, IN ThE NORThEAsTERN muNIcIpALITy Of MANuEL BENAvIdEs. ThIs TOwN Is LOcATEd LEss ThAN 10 KILOmETERs sOuTh Of ThE bORdER wITh ThE UNITEd STATEs, sOuTh Of ThE BIG BENd NATIONAL PARK IN TExAs, whERE ThE spEcIEs hAs cOmmONLy bEEN cOLLEcTEd. BAsEd ON ThIs INfORmATION, wE cONsIdER IT mORE pLAusIbLE ThAT ThIs SAN ANTONIO TOwN Is whERE ThE spEcIEs wAs ORIGINALLy cOLLEcTEd IN MExIcO, whIch wAs AcTuALLy pREvIOusLy REpORTEd As ThE TypE LOcALITy Of A. hungerfordi UsINGER ( UsINGER 1946). ThE REcORds hEREIN pREsENTEd fROm ThE sTATE Of ChIhuAhuA REpREsENT ThE fIRsT spEcIfIc dIsTRIbuTION dATA Of A. buenoi IN MExIcO.

Ambrysus buenoi wAs cOLLEcTEd syNTOpIcALLy wITh A. pulchellus IN Eddy COuNTy, NEw MExIcO (10-III-1989).

Published records. UNITEd STATEs: NEw MExIcO, TExAs; MéxIcO: SONORA ( UsINGER 1946; DE CARLO 1950; LA RIvERs 1951, 1953A, 1971; DAvIs 1996).

Type material examined. HOLOTYPE ♂ (by ORIGINAL dEsIGNATION): [ UNITED STATES]: Texas: BREwsTER CO. Tx. , RIO GRANdE, VI-13–17 -[19]08 / MITchELL ANd CushmAN COLL. / Ambrysus mexicanus MONTANdON DET. J.R.

dE LA T. BuENO / HOLOTYPE Ambrysus buenoi UsINGER / TypE NO. 54275 U.S.N.M. / Ambrysus buenoi UsINGER DET. by R.L. UsINGER. PARATYPES: BREwsTER CO. Tx, RIO GRANdE, VI-13–17 -[19]08 / MITchELL ANd CushmAN COLL. / ALLOTYPE Ambrysus buenoi UsINGER (1♀ EMEC); BREwSTER CO. Tx., RIO GRANDE, VI-13–17 -[19]08 / MITCHELL ANd CushmAN COLL. / PARATypE / Ambrysus buenoi USINGER 1946 (IRA LA RIVERS) (1♀ USNM); BREwSTER CO. Tx., RIO GRANdE, VI-13–17 -[19]08 / MITchELL ANd CushmAN COLL. / PARATypE / Ambrysus buenoi Usinger 1946 dETERmINEd by IRA LA RIvERs '50 (1♀ USNM).

Material examined. MÉXICO: Chihuahua: [MpIO. COyAmE dEL SOTOL] , RIO COyAmE AT COyAmE, IV-29-82, J.T. POLhEmus / Ambrysus buenoi USINGER DET. D.A. POLHEMUS / C.J. DRAKE ACCESSION (7Ƌ, 4♀ USNM); SAME BUT / Ambrysus buenoi USINGER DET. J.T. POLHEMUS '83 (1♀ USNM); [MPIO. MANUEL BENAVIDES], SAN ANTONIO, MEx. 7.15.27, L. STEvENsON / 577 / Ambrysus buenoi UsINGER dETERmINEd by IRA LA RIvERs 1948 / IRA LA RIvERs cOLLEcTION BEqUEATHED TO THE CALIFORNIA ACADEMY OF SCIENCES - 1978 (1♀ CAS) ; SAN ANTONIO, MEx. 7.15.27 [INCORRECTLY REpORTEd As 7-15-28 by LA RIvERs (1951)], R.H. BEAmER / 147 / Ambrysus buenoi UsINGER dETERmINEd by IRA LA RIvERs 1948 (1♂ EMEC). UNITED STATES: New Mexico: Eddy CO. , SITTING BuLL FALLs, X-3-1982, COLL. E. RILEy (1Ƌ, 1♀ UMC); EDDY CO., SITTING BULL FALLS, 10 MARCH 1989, COLL: MORRIS & VADDER (5Ƌ, 2♀ UMC); EDDY CO., SITTING BULL FALLS, 14 OCTOBER 1989 COLL: J.A. BACK (13Ƌ, 8♀ UMC); EDDY CO., SITTING BULL FALLS, 14 OCTOBER 1989, COLL: R. MURPHY (1♀ UMC); EDDY CO., 6.5 MI. S. 285 ON 137, 10 MARCH 1989, COLL: MORRIS & VADDER (4Ƌ, 2♀ UMC). Texas: BIG BENd NP, FREsNO CREEK, CL 538 , XI-25-1971, J.T. POLhEmus / C.J . DRAKE AccEssION (12♂, 17♀ USNM); sAmE buT / Ambrysus buenoi USINGER DET. J.T. POLHEMUS '71 (1Ƌ, 1♀ USNM); BREwSTER CO., BIG BEND NAT. PARK, BUD SPRING, 30 MARCH 1995, J. MARCUS & E. KIRKPATRICK (1Ƌ UMC); BREwSTER CO., BIG BEND NAT. PARK, BUTTRILL SPRINGS, 17 JULY 1991, COLL: R.C. VOGTSBERGER (1♀ UMC); BREwSTER CO., BIG BEND NAT. PARK, CLARO SPRING 2, 18 APRIL 1995, J.W. MCDONOUGH (1♀ UMC); BREwSTER CO., BIG BEND NAT. PARK, DOUBLE SPRING, 11 APRIL 1995, JEFF MARCUS (2Ƌ UMC); BREwSTER CO., BIG BEND NAT. PARK, GLENN SPRING, 15 MARCH 1995, S. BARTEL (1♀ UMC); BREwSTER CO., BIG BEND NAT. PARK, GOAT SPR., HARTE RANCH, 9 MAY 1995, (3Ƌ UMC); BREwSTER CO., BIG BEND NAT. PARK, GOOD MTN., SPRING-RUN, 26 APR 1995, A. HANDZLICK (2Ƌ UMC); BREwSTER CO., BIG BEND NAT. PARK, HOLLY SPRING, 16 MARCH 1995, A. HANDZLICK (1Ƌ, 3♀ UMC); BREwSTER CO., BIG BEND N.P., MENAGERIE A+B, 28 MARCH 1995, J.W. MCDONOUGH (1Ƌ UMC); BREwSTER CO., CREEK 20 MI S ALPINE, HwY 118, MAY 3, 2000, G.L. CHALLET (4Ƌ, 7♀ TAMU); BREwSTER CO., TERLINGUA CR., 4 APR. 1969 / Ambrysus / INHS INSECT COLLECTION 461,359 (1Ƌ INHS); BREwsTER CO., TERLINGuA CR., 4 ApR. 1969, M.B. & A.L.R. / Ambrysus / INHS INSECT COLLECTION 461,360 (1♀ INHS); BREwsTER CO., 20 mI. S ALpINE, CALAmITy CR., IV-30-82, D.A. & J.T. POLhEmus / Ambrysus buenoi UsINGER dET. D.A. POLHEMUS / C.J. DRAKE ACCESSION (4Ƌ, 6♀ USNM); BREwSTER CO., 20 M S ALPINE, 10 OCT 1988, CALAMITY CK., COLL: C.A. OVERBY (1♀ UMC); BREwSTER CO., 21 MI. S. ALPINE, CALAMITY CREEK, JULY 19 1964, D.R. SMITH & C.W. BAKER / C.J. DRAKE ACCESSION (1Ƌ USNM); SAME BUT / Ambrysus buenoi USINGER '70 DET. J.T. POLHEMUS (1Ƌ USNM); CuLbERsON CO., cA. 2 mI. E. NIcKLE CK., BELL CANyON AT Hwy 180, 18 MARch 1990, cOLL: BAcK ANd STEvENs (10♂, 10♀ UMC); CULBERSON CO., CA. 2 MI. E. NICKLE CK., BELL CANYON, 1 APRIL 1990, COLL: BLACK AND BAUGH (22Ƌ, 15♀ UMC); CULBERSON CO., CREEK 1 MI NE NICKLE CREEK, HwY 180, G.L. CHALLET (1♀ TAMU); [JEFF DAVIS CO.], FORT DAVIS, VI-25-1951, L.H. BRIDwELL / J.C. LUTZ COLLECTION 1961 (8Ƌ, 8♀ USNM); SAME BUT / Ambrysus buenoi USINGER 1946 (IRA LA RIVERS) (1Ƌ, 5♀ USNM); [JEFF DAVIS CO.], FT. DAVIS, JULY 15 1951, L.H. BRIDwELL / Ambrysus buenoi USINGER 1946 (IRA LA RIVERS) (2Ƌ, 2♀ USNM); [JEFF DAVIS CO.], FT. DAVIS, 6-20-1947, L.D. BEAMER (1Ƌ, 1♀ UMC); [JEFF DAVIS CO.], FT. DAVIS, V-30-1951, L.H. BRIDwELL / J.T. POLHEMUS COLLECTION / C.J. DRAKE ACCESSION (4Ƌ, 1♀ USNM); SAME BUT / Ambrysus buenoi USINGER DET. I. LA RIVERS (1♀ USNM); [JEFF DAVIS CO.], FT. DAVIS MT., TEx., 7-12-38, R.L. SLATER / Ambrysus buenoi USINGER 1946 (IRA LA RIVERS) (1Ƌ USNM); [JEFF DAVIS CO.], FT. DAvIs, TEx., 6-20-1947, R.H. ELbEL / Ambrysus buenoi USINGER 1946 (IRA LA RIVERS) (1Ƌ USNM); JEFF DAVIS CO., LIMPIA CK. CA 9 MI. N. FT DAVIS, 22 JULY 1989, COLL: BAUGH & DOEDERLEIN (11Ƌ, 9♀ UMC); JEFF DAVIS CO., LIMPIA CK. 9 MI. N. FT DAVIS, 22 JULY 1989, COLL: BAUGH & DOEDERLEIN (15Ƌ, 25♀ UMC); JEFF DAVIS CO., CA. 9 MI. N. FORT DAVIS, LIMPIA CREEK, 31 MARCH 1990, COLL: BAUGH AND BACK (4Ƌ, 3♀ UMC); JEFF DAVIS CO., 5 MI. NW FT. DAVIS, LIMPIA CREEK, 7 AUGUST 1988, COLL: R.W. SITES (1Ƌ UMC); KIMBLE CO., LLANO RIVER, N. OF JUNCTION, APRIL 25 2001, G.L. CHALLET (1Ƌ UMC); MASON CO., JAMES RIVER NR. LONDON, 10 FEB. 1990, LOw wATER CROSSING, R.W. SITES (2Ƌ UMC); [PREsIdIO CO.], ALAmITO cREEK, 5 mI. SOuThEAsT PREsIdIO, JuLy 11 1968, J.E. HAfERNIK / C.J. DRAKE AccEssION (1Ƌ USNM); SAME BUT / Ambrysus buenoi USINGER '70 DET. J.T. POLHEMUS (1♀ USNM); [PRESIDIO CO.], ALAMITO CREEK, 5 MI. SE. PRESIDIO, VI-13-1968 J.E. HAFERNIK / C.J. DRAKE ACCESSION (2Ƌ USNM); SAME BUT / Ambrysus mormon MONTD. DET. J.T. POLHEMUS (1Ƌ USNM); PRESIDIO CO., BIG BEND NATL. PARK, GRAPEVINE SPRING, 27 APRIL 1994, COLL: D.E. BOwLES, PERMIT NO. BIBE-93-042 (1♀ UMC); PRESIDIO CO., BIG BEND RANCH ST. NAT. AREA, CIENEGA CREEK, 29 APRIL 1994 / COLL: D.E. BOwLES, PERMIT NO. BIBE-93-042 1M (2♀ UMC); PRESIDIO CO., BIG BEND RANCH ST. NAT. AREA, OjITO ADENTRO-LAS CUEVAS SPG., 11 MARCH 1995, COLL: D.E. BOwLES (1Ƌ UMC); PRESIDO CO., CAPOTE CANYON, AUGUST 22 1969, BOARD & HAFERNIK / C.J. DRAKE ACCESSION (1Ƌ USNM); PRESIDIO CO., CIBOLO CK AT SHAFTER, 23 JULY 1989, COLLS: BAUGH & DOEDERLEIN (9Ƌ, 9♀ UMC); PRESIDIO CO., CIBOLO CK AT SHAFTER, 8 AUGUST 1988, COLL: R.W. SITES (1Ƌ, 1♀ UMC); SAME BUT UNDER FLOATING ALGAE (7Ƌ, 10♀ UMC); PRESIDIO CO., CIBOLO CRK AT SHAFTER, MAY 4, 2000, G. CHALLET (1♀ TAMU); PRESIDIO CO., PINTO CYN. CA. 42 MI SW MARFA RT. 2810, 4600 FT, 8 AUG 1988, R.S. ZACK (1Ƌ UMC); PRESIDIO CO., RUIDOSA HOT SPRINGS, HOT SPGS CK., 7 MI ENE RUIDOSA, 8 AUG 1988, COLL: R.W. SITES (6♀ UMC); PRESIDIO CO., SHAFTER, CIBOLO CK., 23 JULY 1989, COLL: T. DOEDERLEIN, IN wATER (1Ƌ, 2♀ UMC); PRESIDIO CO., SHAFTER, AUG. 13 1969, BOARD & HAFERNIK / C.J. DRAKE ACCESSION (5Ƌ, 10♀ USNM); PREsIdIO COuNTy, ShAfTER, ApRIL 14 1968, J.E. HAfERNIK / Ambrysus buenoi UsINGER dET. J.T. POLhEmus / C.J. DRAKE ACCESSION (1♀ USNM); PRESIDIO COUNTY, SHAFTER, TExAS , JUNE 22, 1968, J. HAFERNIK / C.J. DRAKE ACCESSION (1♀ USNM); sAmE buT / Ambrysus buenoi USINGER DET. J.T. POLHEMUS (1Ƌ USNM); PRESIDIO CO. 18 MI. S. MARFA, ON ALAMITO CREEK, JUNE 26 1980, C.L. COLE / C.J. DRAKE ACCESSION (2Ƌ, 1♀ USNM); TORNILLO CR., APRIL 1974, CAROL BANE / C.J. DRAKE ACCESSION (1Ƌ USNM); SAME BUT / Ambrysus buenoi USINGER DET. J.T. POLHEMUS (1♀ USNM); TOyAh CANyON, 8 MARch 1936 (1♂, 1♀ USNM).

Figures

FIGURE 1. Structures of Ambrysus buenoi. (A) dorsal habitus of male, (B) 6th and 7th abdominal terga of male, (C) 8th abdominal tergum of male, (D) ventral surface of phallosoma, (E) left side of phallososma, (F) sternum VI and subgenital plate of female (terminal abdominal segments removed; arrow indicates posterior margin of laterosternite VI). agp = accessory genitalic process, al = apical lobe, ldf = left dorsal flap, lvl = left ventral lobe, mc = medial convexity, plc = posterolateral corner, pp = pseudoparamere, sct = scutellum, sgp = subgenital plate. Size bar = 0.5 mm and applies only to figures D and E.

FIGURE 2. Distribution of Ambrysus buenoi, A. californicus, and A. vanduzeei in North America.