Studies on Tipulidae II. 197 
a desideratum yet; the presence in Trimiera of the three ab- 
ruptly smaller terminal joints of the antennae is not a suffiecient 
eriterium. The desideratum notwithstanding I believe both to be 
well-established genera. Originally found in Sweden, the typical P. 
Meigenit has been since discovered in Bohemia by Mr. Kowarz, and 
in Switzerland (v. d. Wulp, Tijdschr. ete. XXVI, p. 179). — The 
P. pusilla Schiner, in Nowicki, Beitr. z. Kenntn. d. Dipterenfauna 
Galiziens, 1873, p. 17, is the Gnophomyia pusilla Schin. Verh. Z. 
B. Ges. 1865, p. 995 (Austria). 
Finally Prof. Mik (Wien. Ent. Z. 1386, p. 318) considers as a 
Psiloconopa the Sympleeta grata Loew, Beschr. Eur. Dipt. III, 
p. 993, 1875; Neusiedler-See. 
Symplecta. 
Meigen, Syst. Beschr. ete. VI, p. 282, 1830; O, Sacken, Monogr. 
ete.. IV, p, 170; Tab. 1, f 20, wing; IV, 21, forceps. 
Idioneura Philippi, Verh. Z. B. Ges. 1865, p. 615, Tab. 23, f. 4 
(preoce. Selys, Neuropt. 1860). 
Helobia S. Fargeau, Encyel. Meth. Vol. X, p. 585; 1825. 
Larva and pupa were described by Mr. Beling, Verh. Z. B. Ges. 
1578, p. 90. 
In the Monographs ete. IV, p. 171 I showed that the species of 
this group hithertho deseribed form two groups, in the second of 
which the anterior and not the posterior branch of the fourth 
vein is forked. For this second group, which would include three 
species 8. stictica, similis and elongata Lw. (from Persia), Prof. 
Mik recently (Wien. Ent. Zeit. 1886, p. 318) introduced a new genus 
Symplectomorpha, reducing Symplecta to the single species 8. 
punctipennis. It seems to me that this is carrying subdivision too 
far: all these species have a common habitus which betrays a very 
close relationship; the presence of a crossvein in the first submar- 
ginal cell of S. punctipennis cannot be considered as a generic cha- 
racter; the presence of supernumerary crossveins in the submarginal, 
the first posterior and even the basal cells among the Limnobina 
are generally specific characters only, and cannot be compared in 
importance with the occasional absence of the marginal crossvein. 
And finally, in a group which requires the formation of as many 
small genera as the present, the unnecessary separation of evidently 
related forms should be more than ever avoided. 
Symplecta has not been found outside of Europe and North and 
South-America yet. 
13* 
