144 
Psyche 
[December 
in the reproduction of the drawings. Otherwise I cannot 
find any striking differences as the form of the head, which 
serves to distinguish three varieties, falls within the range 
figured by Silvestri. The mesothorax is considerably wider 
than long, whereas in P. afra it is described as about equal 
in these two dimensions; one of Silvestri’s figures (Fig. 
Ill, 1), however, shows it as more elongate. 
The acquisition of further specimens may perhaps show 
that the present specimen really represents a second spe- 
cies as the host termite belongs to another genus. 
NOTE ON HAPLODICTYUS INCERTUS NAVAS 
By F. M. Carpenter 
Museum of Comparative Zoology, Harvard University 
In 1926 Navas published a description of a Mecopteron, 
Haplodictyus incertus, belonging to the family Bittacidae. 1 
Following the description he gives the type locality as 
“Wilmerding Pa. A. Heine”, and then adds, “Wahrschein- 
lich aus Africa”. The similarity of the locality mentioned to 
Wilmington, Pa. (Pennsylvania) leads to doubtful suspi- 
cions, especially since Navas himself was apparently not 
quite certain that the place referred to was in Africa ; and 
an examination of his figures of the genitalia and fore 
wings shows that incertus is in fact Bittacus apicalis 
Hagen, which inhabits the eastern part of the United 
States, from Georgia to New York. Inasmuch as the geni- 
talia and wing markings of this species are very distinctive 
(cf. the figures in my revision, Bull. Mus. Comp. Zool., 70, 
1931), there can be no doubt that incertus is a synonym. 
The fact that Navas placed apicalis, a perfectly typical 
Bittacus, in the genus Haplodictyus Navas substantiates 
Esben-Petersen’s contention (Selys coll., Monograph Mecop- 
tera, 1921) that Haplodictyus is only a synonym of Bittacus. 
1 Trichoptera, Megaloptera and Neuroptera aus dem Deutsch. En- 
tomology. Institut. (Berlin-Dahlem). 2nd ser. Ent. Mitteil., 15 ( 1 ): 
57-63. 1926. 
