113 
Nelees propinguus Navas, Ann. Mus. Zool. Acad. Imp. 
St.-„Betersb.,) px 529, 1911. 
Nelees noxius Navas, Broteria, p. 48, 1915. 
Nelees hellenicus Navas, ibid, p. 93, 1915. 
The species has very muth likeness to nemausiensis, 
and the differences between them are very small. In im- 
becillus the abdomen of the male is probably a little longer 
than in the male of nemausiensis. The markings of head, 
thorax and abdomen are the same in both species, with 
the exception that the pale lateral streaks on the pro- 
thorax as a rule are somewhat broader in imbecillus. 
The median streak on prothorax is sometimes entire, 
sometimes interrupted and sometimes only present on the 
front part. I may say that there is much variation in the 
markings of the thorax, partly due to the degree of ma- 
turity of the specimen, I think. The most valuable char- 
acter is found in the shape of the wings. In imbecillus 
the wings, especially the forewings, are more broadened 
towards the tip, and the tip itself is more obtuse than in 
nemausiensis. In the forewing of imbecillus the third branch 
from Cuja arises as a rule within the angular space of 
the cubital fork; in nemausiensis the third branch arises 
further out. In the forewing of imbecillus often three rows 
of cells between Cuza and the posterior Banksian line; 
in nemausiensis as a rule one row at the base of the Bank- 
sian line and two rows further out. 
In „Mitteil. Kaukas. Museum“, p. 291, 1913, I men- 
tioned a broad-winged form of nemausiensis from the 
eastern part of the Mediterranean Region, but at that time 
I did not known Myrm. imbecillus Stein. I am, however, 
stil much inclined to consider imbecillus only as a geo- 
presented to Brauer from Krüper himself. H.Stitz, Assistant of the 
Berlin Museum, has kindly compared my photo of the wings with 
Stein’s type, and he writes to me: „Ich teile Ihnen mit, dass 1, 
das Flügelgeäders unseres Stein’schen Exemplars von Myrmeleon 
imbecillus mit Ihrer eingesandten Photographie genau übereinstimmt. 
2, dass das Stein’sche Exemplar Sporne besitzt“. 
8 
