Study on the Palaearctic Pristiphora species (Hymenoptera ...

232
NATURA SOMOGYIENSIS
4. Mesopleuron light.....................................................................................................5.
- Mesopleuron dark.......................................................................................................7.
5. Sternites black. Labrum and legs pale yellowish brown. Pronotal corners, tegula and
mesopleuron brownish yellow. 4.5 mm. Sawsheath unknown. Known from a destroyed
female specimen from Siberia. 4.5 mm...........................................P. flavipicta Lindqvist
Siberia: Buryatskaya ASSR.
- Sternites more or less light coloured.........................................................................6.
6. Mesopleuron and also labrum, clypeus, pronotum, tegula and abdominal sternites
yellow. Claws almost bifurcate. Sawsheath like in Fig. 19. 4.5-5.0 mm.
.......................................................................................................P. lanifica (Zaddach)
Northwest Russia and Central and Northern parts of Western Europe, Transylvania.
- Black, light (light brown): labrum, lower margin of clypeus, corners of pronotum,
tegula, last tergites, abdominal sternites, mesopleuron and legs. Wings hyaline, venation
brown, costa and stigma pale brown. Head finely and densely punctured, slightly shiny.
Mesonotum anteriorly finely and densely punctured, nearly matt. Posterior part more
shiny. Sawsheath in Fig. 19. Claw bifurcate. 4.5-5.0 mm..............P. variipes (Lindqvist)
Finland and Northwest Russia.
7.Small species, 3.0-4.5 mm. Sawsheath longer than cerci, or if not longer, antenna
long and narrow, nearly as long as body (abdomen + half of the thorax).......................8.
- Larger species, 4.5-7.0 mm. Antenna normal, sawsheath not projecting long beyond
cerci..................................................................................................................................9.
8. Sawsheath longer than cerci and about twice as wide as a cercus. Labrum, hind corners
of pronotum, tegula and more or less abdominal apex yellow. Legs dominantly yellow.
Antenna about as long or little longer than abdomen. 3.0-4.0 mm. [Apex of hind
tibia and tarsus brown. Frontal area not clearly marked. Head with dense and fine punctures.
Mesonotum finely punctured. Mesopleuron smooth and shiny. Claws with minute
inner tooth. Wings hyaline, stigma yellow.].......................................P. retusa (Thomson)
Belgium, Switzerland, Germany, France, Northwest and Central Russia, Ukraine, Sweden, Scotland and
Finland.
- Yellowish brown or light brown: middle antennal segments below, a small triangular
spot below the antenna, anterior margin of clypeus, labrum, hind corners of pronotum,
tegula, apical and lateral parts of abdominal segments, most of the femora, tibiae and
tarsi. Wings hyaline, venation brown, costa and stigma light brown. Antenna long, about
as long as abdomen and half of the thorax together. Sawsheath in Fig. 32. 4.8 mm.
..............................................................................................P. tenuicornis (Lindqvist)
Russia, Sweden, Finland and Korea.
9. Hind femora entirely light coloured.......................................................................10.
- Hind femora more or less darkened.........................................................................12.
10. Sawsheath in Fig. 27. Abdomen only ventrally light coloured. Labrum and anterior
margin of clypeus whitish. Mostly an upper orbital-spot, frequently the lower orbits
or a spot between antenna yellowish. Pronotum, tegula, more or less the sternites and
mostly tergite 9 more or less yellow. Legs yellow, only bases of coxae black. Wings hyaline.
Costa and stigma yellowish. 4.5-6.0 mm. Mesopleuron finely punctured, shiny.
.......................................................................................................P. alpestris (Konow)
Belgium, Hungary, Switzerland, Slovakia, Germany, England, Karelia and Finland.
- Sawsheath and colour different...............................................................................11.
11. Sawsheath straight above and acute apically. Abdominal tergites, sternites and legs
fulvous except the apex of middle tibia and the apical joints of middle tarsi. Tegula may
be yellow. Otherwise entirely black. Wings infuscate. 5.0 mm......P. formosana Rohwer
Known from Taiwan.