Tsetse fly

a tsetse fly
Difficulty	8
Attacks	Sting 1d3 sleep, Sting 1d3

a tsetse fly
Difficulty	8
Attacks	Sting 1d3 sleep, Sting 1d3
Base level	3
Base experience	68
Speed	15
Base AC	0
Base MR	0
Alignment	0 (neutral)
Frequency (by normal means)	1 (Very rare)
Genocidable	Yes
Weight	1
Nutritional value	5
Size	Tiny
Resistances	poison, sleep
Resistances conveyed	poison (10%), sleep (10%)
A tsetse fly: can fly. has no hands. is an animal. is poisonous to eat. does not eat. (*) is normally generated hostile. is nasty. appears only in Gehennom. normally appears in small groups.
Reference	SLASH'EM_0.0.7E7F2/monst.c#line175

A tsetse fly is a monster in SLASH'EM which, true to its real-world counterpart, can put you to sleep with its attacks. It appears only in Gehennom, by which time any SLASH'EM character is likely to have sleep resistance, making it essentially a non-threat. Even without sleep resistance, it is not that much more dangerous that a homunculus, not being able to put you to sleep for significantly longer.