Stegnocephala luteicollis (Stål, 1857)

General description: 

Muddy yellow body; ends of feelers, hind chest, metatrochanters, tibia and tarsal segments, black; the pronotum dispersedly punctured; dark iron blue elytra, striated, dotted and striped, with rib-shaped, glossy interspaces. [Translated from the original German in Suffrian, 1863].


In size and structure as a whole, S. luteicollis is similar to S. bombarda. S. luteicollis differs only in its lack of the black cross-patch on its pronotum, which is instead replaced by the extension of the color on the underside; its brighter yellow primary color; and the clear puncture-stripes of its pronotum. Now I can refer to the description of S. bombarda and confine myself to the nearer evidence of this deviation. The primary color is, as mentioned, not rusty red, but a beautiful, light muddy yellow; the secondary colors are also black, but distributed in different ways, including the entire lack of the spot on the pronotum. In contrast, the legs are black until the larger upper half of the thighs, and the same color appears on the entire hind chest, including the parapleura and the shoulder blades. With one of the poorly colored specimens of the Museum Berol., the color of the elytra falls into a copper color similar to that of S. perplexa as well as S. cyanoptera Stål. There are also some conformational and sculptural differences: the pronotum is clearly, though not deeply, punctured, at the front only widely curving towards the back, and marked, behind the front edges, by a rather strong cross-patch that stretches across the middle half of the pronotum. The stripes consisting of the puncture-stripes on the elytra are somewhat deeper and by no means fainter at the back. The first stripe stops abruptly over the curve and continues as a simple row of punctures. The ninth and tenth run outside the shoulder humps, through the flattened ninth interspace, and meet each other in a triangular, clearly punctured longitudinal field. The rib-shaped interspaces that bend especially sharply outwards are very finely punctured and form cross wrinkles; they are slightly less glossy than those of S. bombarda. The fourth segment of the antennae is 1.5 times the length of the third, and the four lower segments are black along the upper side. Compared to S. bombarda, the fifth to seventh segments do not widen out as strongly, and the upper, inner rims of the eyes touch each other completely. The lower ends of the front shins are remarkably wide. The last segment of the only available male is simple; that of the female has normal dimples.

[Translated from the original German in Suffrian, 1863].


Brazil (Museum Clark in Petropolis; Museum Holm. in Rio de Janeiro; and [the specimen from] Museum Berol. from an unspecified place). [Translated from Suffrian, 1863].

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith