Theophilea subcylindricollis
| Theophilea subcylindricollis | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Theophilea subcylindricollis , couple on a blade of grass |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Theophilea subcylindricollis | ||||||||||||
| ( Hladil , 1988) |
Theophilea subcylindricollis is a beetle from the family of the longhorn beetle and the subfamily Lamiinae .
Theophilea subcylindricollis was only separated from the species Theophilea cylindricollis in 1988 , as the European populations differ from those in Armenia . The species is also similar to the European species Calamobius filum . The species name subcylindricollis (from Latin "cylindrus" for "roller", "cóllum" for "neck, pronotum" and "sub-" meaning approximately) means that the pronotum is almost cylindrical.
|
|
 |
| Fig. 1: Top view | Fig. 2: Head from the front | Fig. 3: Tip of the elytra |
|
Fig. 4: Detail of the sensor from the inside, left 1st link |
|
|
Fig. 5: Tarsus of the middle leg, right claw segment |
|
|
Fig. 6: Detail top view, left head, right wing covers |
|
Characteristics of the beetle
The slender, almost cylindrical beetle is seven to ten millimeters long. It is black with a blue or green metallic sheen and very dense and regularly dotted. It has inconspicuous double hairs made up of very short, back-lying hair on the one hand and individual longer and stronger hairs that stick out more on the other.
The head is inclined more than ninety degrees to the body axis, the mouthparts are already pointing slightly backwards. The black, thread-like twelve-link antennae are longer than the body in both sexes. They are very finely pale and have a row of long black hair fringes on the underside (Fig. 4). The first antenna element is moderately thick when viewed from the side, less than twice as thick as the third and the following antenna elements (Fig. 4).
The pronotum is noticeably longer than it is wide. Its sides are almost parallel and reach the greatest width in the last third. The puncture is roughly as coarse as that of the head (Fig. 6).
The elytra are elongated and each end with a gaping blunt point (Fig. 3). They are metallic blue to green in color, but appear only slightly shiny due to their fine gray to yellowish hair. The elytra are more or less transversely wrinkled and punctured, the points are larger and less dense than when the head and pronotum were punctured (Fig. 6).
The black legs and especially the tarsi are long. The third link of the tarsus is also slender. It is cut in half (Fig. 5). The fourth tarsal link is hidden in this incision. In contrast to Calamobius filum, the central splint is not furrowed.
biology
The larva develops in the stem of grass , probably in the couch grass . The development is annual, the adults appeared at the place of discovery in Romania in April and May, elsewhere June and July are given. The beetles sit in steppes - habitats, on the leaf sheaths of grasses.
distribution
Theophilea subcylindricollis is an Eastern European species. It is common in Hungary . The distribution area also touches Slovakia , Ukraine and southern Russia . There are new reports from Serbia and Romania, and the species was also found in Turkey.
Individual evidence
- ↑ a b Theophilea subcylindricollis in Fauna Europaea. Retrieved August 25, 2012
- ↑ Sigmund Schenkling: Explanation of the scientific beetle names (species)
- ↑ a b c d Maria Magdalena Dascálu: Theophilea subcylindricollis (Hladil, 1988) (COLEOPTERA: CERAMBYCIDAE) a new genus and a new species for Romanias Fauna Analele Ştiinţifice ale Universităţii “Al.I. Cuza ”Iaşi, s. Biology animală, Tom LI, 2005 as PDF
- ↑ N.Pil, D.Stojanović: Theophilea subcylindricollis (Hladil, 1988) A new Longhorn Beetle (COLEOPTERA: CERAMBYCIDAE) for Serbian Fauna Acta entomologica serbica, 2009, 14 (1): pp. 125–128 as PDF
