1.911] Notes on African Myrmel eon idee !) 



Hagenomyia tristis (Hagen). 



This is very common in many parts of Africa; I have seen 

 specimens from Argabba, Tewe, N. Usambara, Kamerun, 

 Togo, Kongo, Tanganjika, Sansibar, Angola, Madagascar, 

 and various places in D. O. Afrika (Berlin Museum), Erythraea, 

 Abyssinia, and Abutshi, Niger (Banks coll.) 



Myrmeleon Linnaeus. 



In this genus there are several crossveins before the radial 

 sector in both wings, the anal is connected to margin; there is 

 no straight line through the apical part of the wings, the basal 

 joint of tarsus is much shorter than the apical joint and the spurs 

 are not or but a little longer than the basal joint ; the costals are 

 simple, the cubital forks diverge, and the wings are usually narrow. 



Type. —Myrmeleon formicarium Linn. 



There are two subgenera; Myrmeleon and Macroleon, the 

 latter with large species, mostly broader wings, and with several 

 of the crossveins before the radial sector crossed; the type of this 

 subgenus is M. (Myrmeleon) valid us McLach. 



Many species have been described from Africa, several of 

 which probably do not belong to the genus as here restricted, 

 and others are perhaps synonyms of some of the common 

 species. Those that I have seen are tabulated below. 



1. Fore-wings with an oblique lark mark up from the end of the anal vein, ami 



dark spots on the cubitus and median near the tip; pronotum dark. . . . 



alcestris 

 No such marks 2 



2. Outer apical margin of both wings narrowly dark; pronotum dark 



formicaroides 

 Outer apical margins not dark '. 3 



3. A large dark cloud before and beyond the large white stigma lynceus 



No such cloud 4 



4. Abdomen plainly banded with pale; pronotum dark, indistinctly marked. . (i 

 Abdomen not plainly banded with pale; pronotum pale yellowish, at least on 



sides ■") 



5. A simple, narrow median dark stripe on the pronotum medialis 



A simple median, and a lateral stripe for most of the distance on pronotum. . 



doralice 



A broad median stripe furcate in front on the pronotum furcatus 



A broad median dark stripe on pronotum, serrate on the sides and occupying 

 most of the surface lethifer 



6. Size small, stigma barely distinct; no series of crossed veins before radial 



sector in fore-wings, cubitus marked with black and white obscurus 



Size very large, stigma plainly white; a series of crossed veins before radial 

 sector in fore-wings (Macroleon) ' 



7. Wing tinged throughout with a vinous color validus 



Wings not tinged with vinous 8 



8. Interantennal mark includes a pale spot below antenna'; black on clypeus; 



pronotum with five pale spots quinquemaculatus 



Interantennal mark not complete below, but with a deep median indentation 

 of pale; hardly black on clypeus; larger and with narrower wings atlas 



