READING PUBLIC MUSEUM AND ART GALLERY

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LAWRENCE S. DlLI.JON <strong>AND</strong> ELIZABETH S. DILLON lR5 Ischioderes oncider 9 ides Dillon and Dillon, spec. nov. PLATE VII, FIGURE 5. Resembles in elytral maculation the saga gl'OUp of Oncideres but the body structure is entirely distinct. l"fALE. Elongate-ovate, moderately robust, subcylindrical; head, most of pro notum, and humeri black, elytra and apex of pronotum dark reddish-brown. Head orange-ochraccous pubescent; eye posteriorly and front cach side margined with denser pubescence. Pronotum thinly hoary pubescent, a broad band of orange ochraceous covering entire middle portion. Scutellum hoary pubescent, tinged with orange-ochraceous. Elytra densely orange-ochraceous, more sparsely so at base, uni formly whitc ndsperse, the maculae a little denser at middle, giving a suggestion of a fascia. Dody beneath dark reddish-brown, hoary-gray pubescent, metasternum laterally slightly variegated with orangc-oehracecus ; esostemal side-pieces and metepisterna maculate with orange-ochraceous; abdomcn iuscous, densely covered with hoary and orange-ochraceous variegated pubescence, sternites one to four with their apices glabrous in the form of elongate lunules, highly polished and conspicu ous. Legs black, hoary pubescent, tinged with orange-ochraceous; tarsi entirely hoary pubescent. Antennae black, thinly hoary-gray pube:cent; from before middle of fourth segment reddish-brown, more densely covered with short, ofiUlge-ochra ceaus pubescence. Head minutely, demely punctate, a median impressed line from occiput nearly to epistoma; front somewhat longer than broad, sides parallel, distinctly concave between antennal tubercles, minutely, den::;e1y punctate, with a few coarser punc tures interspersed, especially toward mouth; genae suhquadrate, minutely, densely .'l.lutaceous and irregularly punctate; eye with lower lobe oblong, large, more than one and one-half times height of gena; antennal tubercles prominent, robust, well separated, at apex with a distinct, obtuse tooth. Pronotum strongly trnnsverse, one-half wider than long; sides uneven, arcuate, slightly narrower at very apex than at base; lateral tubercle nearly wanting, feebly elevated, obtuse, without a terminal process; apical transverse sulcus distinct, sinuous, basal one rather deep medially, gradually obsolete toward sidcs, lateral oblique ones confused with discal sculpturing; disk impunctate or nearly so, entirely covered with five to eight trans verse nlgosities or carinae, the basal and apical ones deeply sinuate, median ones more nearly straight, all entire. Scutellum nearly as long as wide; sides straight, feebly oblique; apex slightly notched at middle. Elytra with sides slightly widened to behind middle, apices slightly dehiscent, together rounded, slightly prolongcd near suture; ba£e without distinct gibbosity, moderately densely, finely granulate-punc tate to basal quarter, thence simply, finely punctate to apices ; humeri slightly prom inent, glabrous, anterior margin rounded, tubercle at angle lacking. Prosternum simple, narrow, slightly wider basally; mesosternum with process elongate, sides nearly parallel, apex feebly emarginate, on apical half with an elongate, low, but distinct tubercle. Procoxae anteriorly with a strongly curvcd, robust uncus; fcmora robust, clavate, metafemora more slender, profemora nearly cylindrical, constricted at buse, on basal two-thirds coarsely, irregularly rugose, on anterior face more feebly so; tarsal claw segment dist.inctly shorter than rest together. Fifth sternite
186 THE TlUBE ONCIDERINI only slightly longer than fourth, apex narrowly emarginate. Antennae nearly twice length of body, with scarcely any fimbriation beneath, what fringing hairs Ilrc pres· ent arc short, very sparse, and confined to the four proximal segments; scape elongate, slender at base, distinctly clavate on apical half or two-fifths, basal half be neath coarsely, transversely rugose; third segment only one-eighth longer than first, straight or feebly curved downwards, apex slightly wider than base; fourth equal to first, fifth very slightly, but measurably, longer than fourth, rest subequal, tenth and eleventh arcuate, the latter longest of all, acicular. LENGTH 21-23 mm.; width 8-8.3 mm. H olotype.-Male; Ransa Humboldt, Santa Catharilla, Brazil, February, 1932j (A. Maller) ; [L. Lacey]. Pamtype.-Malej topotypic, January, 1941; (A. Maller) ; [L. Lacey].
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READING PUBLIC MUSEUM AND ART GALLE
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THE TRIBE ONCIDERINI (Coleoptera: C
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INTRODuc'rION As known at present,
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Introduction Vll As the shape of th
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Introduction IX In the OncideriniJ
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Introduction 15. Antennae less than
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Introduction Xlll Pronotum not cyli
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Introduction xv 79. Front distinctl
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2 THE T.RlHE ONClDEIUNI middle, the
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4 THE TRIBE ONCIDERINI 3. Elytra to
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G THE TRIBE ONCIDERINI Junin Prov.;
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8 THE TRIBE ONCIDERINI Jamesia phil
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10 THE TRIBE QNOIDERINI procoxae wi
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12 THE TRIBE ONCIDERINI GENOTYPE :
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14 THE TRIBE ONClDERINI broad, or e
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16 l'HE TRIBE ONOIDERINI procoxae w
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18 THE TRIBE ONCIDElllNI BRAZIL: 10
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20 THE TRIBE ONCIDERlNI Elytra with
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22 THE 'l'RIBB ONCIDEl\INI tinctly
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24 THE TRIBE ONCIDERINI basal half;
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26 'l'HE TJllBE ONCIDEBINI Allotype
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28 THE TRIBE ONCIDERINI the bassi t
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30 THE TRIBE ONClDERINI fifth: seap
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32 THE TRIBE ONCIDERINI in markings
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34 THE 'l'IHBE ONCIDERTNI about one
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36 THE TRIBE ONCIDERINI shorter; el
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38 THE TRIBE ONCIDERINI Distinct fr
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40 THE TRIBE ONClDERINI robust, pro
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42 'l'HE TRIBE ONCIDERINI at base r
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44 THE TRIBE QNOIDERINI Hypsioma op
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46 THE TRIBE ONCIDERINI slender, re
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48 THE TRIBE ONCIDERINI straigM, ob
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50 THE TRIBE ONCIDERINI TULCUS Dill
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52 THE TRIBE ONCIDERINI Elongatovat
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54 THE 'L'lUBE ONClDERINI Moderate
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56 THE TRIBE ONClOERINI side, these
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58 THE TRIBE ONCIDERINI Charoides p
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60 THE TRIBE ONCIDERINI ,streaks of
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62 'I'KE THilHi: ONClDERINI indisti
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64 THE TRIBE ONCIDERINl Charoides c
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66 THE TRIBE ONCIDERINI yellow, the
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68 THE TRIBE ONCIDERINI denser; hum
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70 THE TRIBE ONCIDRRINl middle wit.
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72 THE TRIBE ONOIDERINI third punct
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74 THE TRIBE ONCIDERINI Antennae sl
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76 THE TRIBE ONCIDEBINI Charoides p
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78 THE TRIBE ONCIDERINI fulvous is
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80 THE TRIBE ONCIDERINI Pranotum tr
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82 THE TRIBE ONCIDERINI punctures f
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84 THE 'I'RIBE ONCIDERI},."1 tooth
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86 THE TRIBE ONCIDERINI front occas
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88 THE TRIBE ONCIDEBINI Small or mo
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90 THE TRIBE ONCIDERINI impressed l
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92 :rHE TRIBE ONCIDERINl MALE. Elon
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94 THE TlUBE ONCIDERINI punctate, w
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96 THE TRIBE ONCIDERINI ","ithout a
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98 THE TRIBE ONClDERIl.'1 ccnces s
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100 THE TRIBE ONCIDERINI LYDIPTA Th
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102 THE TRIBE ONCIDERINI elytm. Scu
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104 THE TRIBE ONCIDEBINl Type local
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106 THE TRIBE ONClDERINI Elytra wit
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108 THE TRIBE ONCIDEBINI callosity
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110 THE TRIBE ONClDERINI half; prot
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112 THE TRIBE ONCIDERINI BRAZIL: !j
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114 THB TRIBE ONClDERINI Lampedu!lo
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116 THE TRIBE ONCIDERINI nearly cyl
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118 'l"HE 'XRIBE ONCIDERINI nearly
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120 THE TRIBE ONCIDERINI procoxae s
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122 l'B!:: TRI:BE ONClDERIl),"l Sma
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124 THE TRIBE ONCIDERINI FEMALE. El
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126 'l'HE TRIBE ONClDERINI Moderate
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128 THE TRIBE ONCIDERINr Type local
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130 THE TRIBE ONCIDEnINl Distinguis
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132 THE TRIBE ONCIDERINI epistorna,
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Page 191 and 192: 176 'l'HE 'l'RtBE ONCrDERTh' 1 marg
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