READING PUBLIC MUSEUM AND ART GALLERY

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LAWRENCE S. DILLON <strong>AND</strong> ELIZABETH S. DILLON 157 Hesychotypa liturata Bates PLATE VI, FIGURE 5. Hesycha liturata Bates, Ann. Mag. Nat. Rist., (3), XVI, 1865, p. 172. Ischiocentra liturata Bates. Lacordaire, Gen. Col., IX, 1872, p. 674. Hesycha humilis Dejean, Cat. Col., 1837, p. 370. [nom. nud.]. Ischiocentra humilis Thomson, Physis, II, 1868, p. 57. Somewhat like H. li1'issa but the elytral sculpturing is smooth, lacking the definite ridges j antennae sborter in both sexes j elytral pale markings more diffused; and antennal horns in male much shorter, less robust, vertical, straight. 1fALE. Elongate-ovate, rather robust, subcylindrical, above subdepressed; dark reddish-brown to fuscous, elytra slightly paler, entirely covered with dense pubescence. Head brown pubescent, with It pale, grayish vitta at middle and sev eral indistinct, irregular ones behind eaeh eye, variable in number; eye outlined posteriorly with rosy-gray, the marginal line below running as a stripe down the genae to mouth. Pronotum brown pubescent, vittate with palc rose and hoary gray as follows : median one narrow, on apical half, one each side of middle broad, slightly oblique, lateral aile very broad, covering most of side, slightly oblique. Scutellum brown, basal angles whitish. Elytra hoary and brown Variegated, striped basally with rosy to middle or beyond, at apical third of sides many angulated lines of white e;\iend obliquely forward to before middle, but do not attain suture, be hind this line a broad band of brown similar in shape and extent to it; apical por tion similar to basal part, the rosy stripes coalescing apically, sides below humeri entirely brown to beyond middle. Body beneath fuscous, hoary pube.::cent medially, laterally rose and brown variegated, the latter color predominRting on extreme sides ; abdomen largely roseate, with two series of small pale maculae each side, onc row along margin, one submedian, fifth sternite mostly hoary, Legs fuscous, cov ered with brown, hoary, and rose variegated pubesccnce; t,arsai claw segment not paler basally. Antennae dark reddish-brown, brown pubescent, variegated with hoary pubescence, segments beginning with fifth narrowly annulate at base with gray. Head minutely, densely punctate, with a median line from occiput to epistoma; front almost as broad as high, broadly but strongly concave between antennal tubercles, minutely, densely punctate and with a number of fme punctures especi ally laterally; genae slightly vertical, minutely alutaceous; eye with lower lobe oblong-ovate, exceeding the genal height by one-t.hird; antennal tubercles robust, prominent, widely separated, at a.pex a short robust tooth, almost as broad as long. Pronotum very strongly transverse, sides irregular, narrower at apex than at base, lateral tubercle low, broad, with a robust, conical process; apical and basal trans verse sulci broad, not well marked, the latter especially poorly defmed, coalescent with the deep lateral oblique sulci; disk with a low median tubercle, each side trans versely and strongly tumid, impressed here and there, across base a number of moderate--sized punctures. Scutellum transverse, sides strongly oblique, straight; apex broadly rounded, notched and impressed at middle. Elytra with sides gradu-
158 THE TRIBE ONCIDERINI ally narrowing posteriorly, apices each angulated broadly almost toothed at tip ; basal gibbosity feeble, extreme base of disk narrowly smooth, thence finely, deeply, rather densely punctate, behind middle punctures more shallow and gradually obsolete to apex; hmneri slightly prominent, anterior margin narrowly rounded, then strongly oblique, the angle with a small, prominen tubercle; sides behind and below humeri slightly rugose, punctate as disk. Prosternum simple, gradually widened posteriorly. Procoxae anteriorly with a broad, obtuse tubercle; femora. clavate, robust, metafemora slightly shorter and more slender, profemora triangularly rugose OIl all sides of basal half. Fifth stcrnite subcqual in length to fourth, apex brodly emarginate. Antennae one-third longer than body, seventh segment at taining elytral apex, fringed beneath on proximal five segments; scape rather slen der, thickened strongly internally before apex, apical half clavate; second segment distinctly longer th,m wide; third half again as long as scape, sinuous ; fourth slightly shorter than third, nearly twice length of fifth, rest subequal in length. FEMALE. More robust than malc; antennal tubercles unarmed; clytra more rounded at apices ; procoxae with a smaller tubercle; profemora not rugose ; fifth sternite half again as long as fourth, apex retuse, with a median impressed line basally; antennae slightly shorter than body, sixth segment distinctly shorter than fifth, rest gradually decreasing in length. LENGTH 11.5-19 rom.; width 4-6.5 mm. Type locality.Oayellne (liturata and humilis). Distribution.N orthern South America. FRENCH GUIANA: 2
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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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Page 133 and 134: 118 'l"HE 'XRIBE ONCIDERINI nearly
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Page 141 and 142: 126 'l'HE TRIBE ONClDERINI Moderate
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