Hagen.] 268 [Feb. 3, 



Mr. Wesmael, Bull. Acad. Bruxelles, 1836, in, 162, pi. 6, fig. 1, 

 published a new Lepidopterous genus Himantopterus(fuscinervis) 

 from Java in the collection of Mr. Kobyns. When I had the 

 pleasure of visiting this distinguished entomologist in 1857, he 

 drew my attention to this insect, and stated that he believed it to 

 be a Nemoptera near N. filipennis Westw. He added that for this 

 reason he had never given a copy of the separata to entomologists, 

 and bringing the whole pile, he stated that I was the first to have 

 one. On my asking if I could see the type, he said it was de- 

 stroyed by pests. (Stett. Ent. Z., 1859, p. 412). So in 1866, Syn. 

 Hemerob., p. 422, I introduced Himantopterus among the Hemero- 

 bids and N. filipennis to this genus. Prof. Westwood, Pr. Ent. 

 Soc, 1877, 437, after the examination of the type, showed conclu- 

 sively that Himantopterus was a Lepidopteron, to which Mr. 

 M'Lachlan, Cpt. Rend, Soc. Ent. Beige, 1877, 56, assented. I 

 remembered then my note in the Stettin. Ent. Zeit., which was 

 mentioned Cpt. Rend., 1. c, 70 ; of course I said in good faith, 

 that I never saw the type. Perhaps a year later in study- 

 ing Wesmael's remarkable deformity of Limenitis populi with 

 the larval head also from Mr. Robyn's collection, I remembered 

 distinctly that the type had been seen by me when I had the pleas- 

 ure to be in the Museum in Brussels with Mr. DeBorreon my last 

 hurried trip to Europe. Then it occurred to me that Mr. DeBorre 

 had also shown to me Himantopterus and that he had asked me 

 courteously to write down my determination. If that is so, — the 

 lapse of sixteen years may explain my uncertainty, — it is only a 

 proof how imprudent it is to write down determinations during a 

 hurried trip and without careful examination of the specimen. I 

 have only to frankly apologize and to ask the favor to throw away 

 my label. I will not try to shield my blunder with the statement that 

 I had at the time not seen my collection, which was left behind in 

 Europe, for four years, nor with the fact that I have never consid- 

 ered nor published, that both species are identical. 



14. Nemoptera pnsilla Tasch. 



NematopterapusillaTaschenberg, Zeitsch. f. Naturw., 1883, 56, 

 183. Collected by Dr. E. Riebeck on the island Socotra. I have 

 not seen it. "Smaller than the smallest Chrysopa ; white, the 

 beak above blackish and a lateral blackish band on each side from 

 behind the head to tip of abdomen, except on the metathorax ; 



