WERNER MARCHAND 111 



Brimley's garden in several different years, while the adults occur 

 more commonly in the garden and house than any other species of the 

 family, the flies quite frequently entering the house, while newly 

 emerged specimens have been noted on a number of occasions. 



Tahanus (AtylotusY^ fulvus Meigen. — -A European species. Sharp 

 describes a larva (Plate 4, Fig. 60, a~d) which he says may belong to 

 this species. This description follows: 



"In a larva, probably of this family (Tabanida;) , found by the writer in the 

 shingle of a shallow stream in the New Forest (England), the annuli are replaced 

 by seven circles of prominent pseudopods,^^ on the abdominal segments, about 

 eight in each circle, and each of these feet is surmounted by a crown of small 

 hooks, so that there are fifty or sixty feet distributed equally over the middle 

 part of the body without reference to upper or lower surface. The figures of the 

 larva of T. cordiger, by Brauer, and of Hcemalopota phivialis, by Ferris, are some- 

 thing like this but have no setae on the pseudopods." 



Tahanus fuscipes Ricardo. — An African species reported by Neave 

 from Lake Chilwa, southern Nyasaland, in January, 1914, in circum- 

 stances which render it extremely probable that they had bred in 

 mud some distance from water, which had been hard and dry for 

 some portion at any rate of the dry season. Neave is inclined to 

 think that in this and other mid season species, such as Tabanus 

 claritihialis Ric. and Tahanus sandersoni Aust., the larvae hibernate 

 fully fed at the beginning of the dry season and only pupate when the 

 next season's rains release them from the hard ground. 



Tahanus glaucopis Meigen.— A European species, occurring in 

 Austria as well as in Scandinavia, but evidently rare. According to 

 Brauer, the larvae have been observed by Wahlberg (1838) in noctuid 

 caterpillars. I was not able to find the statement quoted by Brauer, 

 but it may be correct, as Wahlberg made numerous observations on 

 parasitic and semiparasitic dipterous larvae. 



In as far as most of the Bombyliidae are truly parasitic, and tabanid 

 larvae often burrow deeply into their prey, it is not unlikely that 

 tabanids belonging to the Pangoniinae which are apparently related 



^^ Sharp (Insects, p. 483) uses the generic name Atylotus, which is a subgenus 

 of Tabanus. 



^^ Sharp, like King, uses pseudopod for proleg. 



