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55

(1882-87) [MARC] Author: Adolf Erik Nordenskiöld
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Fani. Chrysomelidse.

16. Phytodecta scutellaris n. sp. Oblongo-ovalis,
modice convexa, subnitida, picea, antennis basi, geniculis,
tibiis, segmentorum ventralium marginibus, prothorace
elytris-que ferrugineis; antennis articulis penultimis oblongis;
prothorace lateribus distincte rotundatis, angulis anticis obtusis,
disco subtilissime parce, lateribus grosse punctato; scutello
lato, rotundato; elytris fortiter punctato-striatis, interstitiis
sublaevibus; ventre dense punctato. Long. 13/4 lin.

Mas: tarsis articulo primo fortiter dilatato; segmento
ultimo ventrali apice leviter emarginato.

Femina ignota.

Ph. affini Sehönh. proxima, sed multo minor, prothorace
lateribus magis rotundatis, angulis anticis obtusioribus
scutel-loque latiore, lateribus et apice continue rotundatis ut et
colore pedum distinguenda; a Ph. linneana Schrank segmento
primo ventrali medio dense et profunde punctato, antennis
longioribus formaque scutelli diversa. — Caput prothorace
multo angustius, transversim ovale, nutans, subtiliter, basi
remote punctatum, clypeo impresso-emarginato, vertice obsolete
sulcato; nigro-piceum, clypeo oreque rufo-ferrugineis, labro
emarginato, mandibulis hoc longe superantibus, apice anguste
piceis. Antennae tenues, coxas posticas attingentes, ferrugineae,
apicem versus piceae; articulo primo fortiter incrassato, ovali,
subcurvato, 2:o ovali, 3:o subcylindrico, 5:o duplo longiore, 4:o
5:o parum longiore, 5—6 aequalibus, latitudine paullo
longioribus, 7—10 praecedentibus paullo latioribus et longioribus,
omnibus latitudine longioribus, sed quam in Ph. affini tamen
minus angustis; 10:o latitudine vix dimidio longiore, ultimo hoc
sesqui longiore, medio obtuse angulato-dilatato. Prothorax
basi coleopteris paullo angustior, longitudine sua duplo latior,
apice late emarginatus et ibi quam basi paullo angustior,
angulis anticis leviter deflexis, paullo productis, rotundatis,
antice lateribusque tenuiter marginatus, his modice fere
aequaliter et distinctius quam in affinibus rotundatis, angulis
posticis obtusis; basi immarginatus, subtruncatus; supra leviter
convexus, subnitidus, rufo-ferrugineus, unicolor (an semper?),
disco omnium subtilissime et parcissime, lateribus grosse et
profunde punctatus, punctis nonnullis ad basin oblongis
confluentibus vel carinulis tenuissimis separatis. Scutellum breve,
semi-ovale, lateribus apiceque continue rotundatis, laeviusculum.

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