o .eg an Jo of En1tomol0lD' - Norsk entomologisk forening
o .eg an Jo of En1tomol0lD' - Norsk entomologisk forening
o .eg an Jo of En1tomol0lD' - Norsk entomologisk forening
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tion. The figures in Soponis 0977: 132, figs. 30<br />
<strong>an</strong>d 31) <strong>of</strong> the hypopygia shows small differences<br />
in the <strong>an</strong>al points <strong>an</strong>d the superior volsella between<br />
the lectotype <strong>an</strong>d the Nearctic material. The<br />
<strong>an</strong>al point <strong>of</strong> the former is shorter <strong>an</strong>d more tri<strong>an</strong>gular<br />
<strong>an</strong>d the superior volsella is more protruding,<br />
appearing right-<strong>an</strong>gled, th<strong>an</strong> in the Nearctic<br />
specimens. Further examination <strong>of</strong> Nearctic material<br />
is necessary in order to confirm this species<br />
as Holarctic.<br />
O. (0) dentifer is previously not recorded from r<strong>eg</strong>ion<br />
20.<br />
Parakiefferiella (RheosmUtia) l<strong>an</strong>guida Brundin<br />
20-27 Jul. 1976 2 males, 26 Jul. 1979 I male<br />
<strong>an</strong>d I female. These specimens are treated in<br />
Cr<strong>an</strong>ston & S~ther On MS).<br />
Parametriocnemus boreoalpinus Gowin<br />
3 Aug. 1976 I male.<br />
Smittia aterrima (Meigen)<br />
24 Jun. -10 Aug. 1976 5 males.<br />
Smittia nlldipennis Goetghebuer<br />
3 Aug. 1976 I male.<br />
This species is previously not recorded from r<strong>eg</strong>ion<br />
20.<br />
Thienem<strong>an</strong>niella cf. vUtata Edwards<br />
9 Jul. 1979 2 males reared.<br />
This species has 12 flagellomeres <strong>an</strong>d a hypopygium<br />
that resembles T. vittata as figured in Pinder<br />
(978). T. vittata is previously questionably recorded<br />
from r<strong>eg</strong>ion 20.<br />
Thienem<strong>an</strong>niella n. sp. near morosa Edwards<br />
8- 27 Jul. 1976 2 males, 9 Jul. 1979 I male reared.<br />
This species has 10 flagellomeres. The only<br />
species de ;cribed with definitely that number is<br />
Thienem<strong>an</strong>niel/a clavicomis Kieffer. The inferior<br />
volsella, however, resembles that <strong>of</strong> T. morosa.<br />
The genus is in need <strong>of</strong> a revision. Of the Europe<strong>an</strong><br />
species, only those described in Schlee<br />
(1968) are recognizable.<br />
Tvetenia calvescens (Edwards)<br />
2 Jul.-27 Jul. 1976 2 males <strong>an</strong>d 7 females, 15<br />
May-9 Jul. 19794 males, 3 females <strong>an</strong>d 9 mature<br />
pupae reared.<br />
Chironominae<br />
T<strong>an</strong>ytarsiui<br />
Micropsectra fusca (Meigen)<br />
24 Aug. 1980 2 males<br />
The species is previously not recorded from r<strong>eg</strong>ion<br />
20.<br />
Micropsectra groenl<strong>an</strong>dica Andersen<br />
26 Aug. 1976 I male.<br />
Parapsectra n<strong>an</strong>a (Meigen)<br />
8 Jul. -10 Aug. 1976 2 males.<br />
Stempellinel/a brevis Brundin<br />
20 Jul. 1976 I male.<br />
T<strong>an</strong>ytarslls brundini Lindeberg<br />
20 Jul. 1976 I male.<br />
Chironomini<br />
Chironomus longistylus Goetghebuer<br />
9 Nov. 1978 I mature pupa reared, 15 May 1979<br />
I male reared from the weir basin.<br />
The male will key out to C. longistylus in Pinder<br />
(1978) <strong>an</strong>d in Lindeberg & Wiederholm (1979).<br />
Three mature female pupae with corresponding<br />
larval exuviae may also belong to this species.<br />
Previously not recorded from r<strong>eg</strong>ion 20.<br />
Chironomus sp. thummi group<br />
15 Jul. 1976 I male.<br />
The species keys out to the thummi group in Lindeberg<br />
& Wiederholm (1979). The hypopygium<br />
agrees well with Chironomus riparius Meigen as<br />
figured by Pinder (1978) <strong>an</strong>d Townes (1945).<br />
Chironomus sp.<br />
30 Jun. -15 Jul. 1976 2 males.<br />
The hypopygium resembles that <strong>of</strong> Chironomus<br />
<strong>an</strong>nularius Meigen sensu Edwards. The specimens<br />
are, however, lacking the frontal tarsomeres,<br />
which makes them difficult to identify.<br />
Endochironomus lepidus (Meigen)<br />
15 Jul. 1976 I male.<br />
Polypedilum albicome (Meigen)<br />
3 Aug. 1976 2 males. ~<br />
Polypedilum cultellatum Goetghebuer<br />
3 Aug. 1976 I male.<br />
The specimen has only 3 setae on the posterior<br />
lobe <strong>of</strong> the superior volsella. Pinder (1978) mentions<br />
4-5.<br />
Stictochironomus pictulus (Meigen)<br />
20 Jul. 1976 2 males.<br />
ACKNOWLEDGEMENTS<br />
We are indebted to T. Andersen <strong>an</strong>d R. Larsen<br />
who made the light trap material available to us.<br />
L. Sawedal contributed with good advise in the<br />
initial phase <strong>of</strong> this study. M. Diaz made some <strong>of</strong><br />
the preparations. U. Srether made the drawings.<br />
P.!. Persson, Stockholm, arr<strong>an</strong>ged with the lo<strong>an</strong><br />
<strong>of</strong> the types <strong>of</strong> Diamesa hyperborea. Their help is<br />
highly appreciated. Part <strong>of</strong> the work was fm<strong>an</strong>cially<br />
supported by the Norw<strong>eg</strong>i<strong>an</strong> Research Council,<br />
NAVF, through a dr. scient. stipend to E.<br />
Willassen.<br />
REFERENCES<br />
Brundin, L. 1947. Zur Kenntnis der schwedischen<br />
Chironomiden. Ark. Zool. 39, 1-95.<br />
- 1949. Chironomiden und <strong>an</strong>dere Bodentiere der<br />
sudschwedischen Urgebirgseen. Ein Beitrag zur<br />
Kenntnis der boden-faunistischen Charaeterzuge<br />
schwedischer oligotropher Seen. Rep. Inst. Freshwat.<br />
Res. Drottningholm 30, 914 pp.<br />
- 1956. Zur Systematik der Orthocladiinae (Dipt.,<br />
Chironomidae). Rep. Inst. Freshwat. Res. Drottningholm<br />
37, 5-185.<br />
120
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