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52 BULLETIN OF THE UNIVERSITYOF NEBRASKA STATE MUSEUM<br />

Det:A.B.T.Smith 2002” (typeface). Lectotype<br />

here designated. See Methods and Materials<br />

section for a statement <strong>of</strong> taxonomic purpose.<br />

Although the lectotype is labeled “Boliv,”<br />

this species does not occur in Bolivia. Gaetano<br />

Osculati collected the lectotype in the Napo<br />

region <strong>of</strong> Ecuador during his trip there in<br />

1847 (Guérin-Méneville 1855; Papavero<br />

1973). The description <strong>of</strong> P. scutellata by<br />

Guérin-Méneville (1855) did not explicitly<br />

state where the type series was collected. The<br />

purpose <strong>of</strong> that paper was to describe beetles<br />

collected by Gaetano Osculati (also spelled<br />

Cajetano Osculati) during his travels to Argentina,<br />

Chile, and Perú (1834-1836) and Ecuador<br />

and Brazil (1847-1848) (Guérin-<br />

Méneville 1855). Although the lectotype was<br />

labeled “Boliv,” this specimen was obviously<br />

collected on the eastern slopes <strong>of</strong> the Andes<br />

Mountains in Ecuador. This is evident from<br />

the distinct coloration <strong>of</strong> the abdominal sternites<br />

(dark brown medially, green laterally)<br />

and the large size (26.8 mm long) characteristic<br />

<strong>of</strong> P. marginata specimens collected in<br />

Napo, Ecuador. According to a published itinerary<br />

<strong>of</strong> Osculati’s trip (Papavero 1973); he<br />

collected around Baeza, Cosanga, and<br />

Archidona in Ecuador from 19 June – 28 July<br />

1847. This is undoubtedly when the lectotype<br />

was collected. It is unknown how the lectotype<br />

got from Osculati to Mniszech (and ultimately<br />

to the MNHN); but at the time it was common<br />

for insect collectors to buy, sell, and trade<br />

specimens. The name P. scutellata was erroneously<br />

used for specimens <strong>of</strong> P. selanderi<br />

from southern Perú and Bolivia by several<br />

authors, including Ohaus (1904b), Martínez<br />

(1976), and Martínez and Martínez (1994).<br />

Platycoelia scutellata is a larger form <strong>of</strong> P.<br />

marginata that occurs on the eastern slope <strong>of</strong><br />

the Andes Mountains. There are no consistent<br />

differences between the character states <strong>of</strong><br />

the eastern Ecuadorian and other populations.<br />

Therefore these names are here synonymized.<br />

Guérin-Méneville (1855) did not<br />

explicitly state how many specimens were in<br />

the type series. The existence and location<br />

<strong>of</strong> paralectotypes are unknown. Type locality:<br />

in the vicinity <strong>of</strong> Baeza, Cosanga, and<br />

Archidona in Napo, Ecuador. NEW SYN-<br />

ONYMY.<br />

DESCRIPTION. Male (n=334). Length 17.8-<br />

26.4 mm, width 9.5-14.6 mm. Color <strong>of</strong> dorsal<br />

surface olive green to lime green or yellow<br />

(sometimes darkened to brownish-green or<br />

dark yellow); pronotum, scutellum, elytron<br />

sometimes with yellow lateral margin; scutellum<br />

sometimes yellow. Ventral surface black<br />

to dark brown medially, sometimes olive<br />

green or yellowish-green laterally. Body ovate,<br />

convex. Head: Dorsal surface glabrous. Frons<br />

densely punctate, clypeus rugopunctate,<br />

punctures moderate. Frons not depressed.<br />

Frontoclypeal suture complete. Clypeal apex<br />

rounded. Eyes separated by approximately<br />

3.0 transverse eye-widths. Labrum densely<br />

punctate, with moderately large, setose punctures,<br />

setae tawny. Apex <strong>of</strong> labrum with triangular,<br />

medial tooth, apex <strong>of</strong> tooth<br />

overlapping apex <strong>of</strong> mentum. Mandibular<br />

scissorial region with 1 tooth, molar region<br />

with strong lamellae. Maxilla with 3 cupshaped<br />

teeth. Mentum apically with medial<br />

tooth curved into oral cavity. Antenna 9-segmented;<br />

club approximately equal to other<br />

segments combined, approximately equal to<br />

length <strong>of</strong> frons. Pronotum: Surface glabrous,<br />

moderately to densely punctate, with small<br />

and moderate punctures. Marginal bead weak<br />

laterally, absent elsewhere. Elytron: Surface<br />

glabrous; longitudinal striae weakly impressed<br />

or not impressed, punctate; punctures<br />

moderate with dark coloration;<br />

intervals sparsely punctate, punctures small.<br />

Suture apically with acute spine (sometimes<br />

worn down). Pygidium: Width approximately<br />

1.7 times length medially. Surface weakly<br />

convex, sparsely to moderately punctate;<br />

punctures moderately large to moderate, setose<br />

(near apex); setae short, tawny. Venter:<br />

Thorax moderately setose (glabrous medially),<br />

setae cream colored. Mesothoracic process<br />

projecting anteriorly past mesocoxa;<br />

shape conical, ventrally flattened. Abdomen<br />

sparsely setose to glabrous. Apical spiracles<br />

not extruding. Legs: Protibia with 1 apical<br />

tooth (second weak tooth sometimes visible).<br />

Mesotibia and metatibia widest medially.<br />

Protarsomeres 2-4 wider than long, cupshaped.<br />

Protarsomere 4 with internoapical<br />

stridulatory ridge. Protarsomere 5 with<br />

internomedial, stridulatory tooth. Meso-

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