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Head: posterior half of frons plane; eyes not projecting; interocular
width less than width of eye; distance between antennae not less
than twice distance between antennae and eye; interantennal carina
not raised and transverse carina behind labrum absent; labrum
distinct. Antennae: not broadened apically; segment I equal
to II; II more than half length of III; IV-X decreasing in length;
XI not flattened and shorter than X; IV-XI setose. Pronotum:
without notch external to each setiferous tubercle within anterior
emargination of anterior margin; side margins convergent from
base to apex; sparsely punctate; no depressions. Scutellum:
broadly triangular. Elytra: side margins laminate; 10 1/2 rows
of moderate punctures; slightly constricted behind humeri. Venter:
hypomera with transverse impression beside each anterior coxal
cavity; four visible abdominal sterna. Legs: tibiae not pointed
externally though excavated subapically.
Key to the Imatidium known from La Selva
1. Pronotum entirely yellow thoracicum
Pronotum with metallic blue rufiventre
Species known from La Selva:
Imatidium rufiventre Boheman
Imatidium thoracicum Fab.
Page authors:
C. L. Staines, 3302 Decker Place, Edgewater MD 21037. Staines.Charles@NMNH.SI.EDU
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu