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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-