PSYCHE 
VOL. XXXVII DECEMBER, 1930 
No. 4 
NOTES ON HIPPOBOSCIDAE 
2. The Subfamily Hippoboscinae 
By J. Bequaert 
Department of Tropical Medicine, 
Harvard University Medical School 
Although much has been written concerning some of the 
common species of Hippobosca that infest equines and cat- 
tle, no comprehensive and critical account of the genus 
as a whole has been published thus far. The present 
attempt at filling this gap cannot be more than prelimi- 
nary, especially with regard to the synonymy adopted for 
the many names proposed in this group. In no case have I 
had access to the types on which these names were based. 
The genus Hippobosca occupies an isolated position in 
the family Hippoboscidae, forming a subfamily of its own, 
which was first defined by Speiser (1908, Zeitschr. Wiss. 
Insektenbiol., IV, p. 445). 
Subfamily Hippoboscinae 
Head rounded posteriorly, entirely free from the anterior 
margin of the thorax. Antennal pits completely enclosed 
by a continuous rim, containing the small, subglobular 
antennae, which have no dorsal prolongation. No ocelli. 
Pronotum well developed dorsally, visible between the head 
and the mesonotum. Humeral angles rounded off, not 
projecting. Claws simple, but apparently bidentate, with- 
out supplementary tooth between the sharp apex and the 
