The Bionomics of South African Insects. 533 



This is a beautiful little group, presenting very striking 

 resemblances. The Phanomeris is doubtless the chief 

 model, being a common species with a strong smell and a 

 slow, conspicuous flight. The colouring of the Fimflci is 

 probably Mlillerian, while that of the Keduviid is certainly 

 Batesian. The latter is evidently a very scarce insect, the 

 only example which I have met with having been captured 

 accidentally in mistake for the Braconid, to which it bears 

 a wonderful resemblance on the wing. 



K. Blach and Reel Braconid Group and Mimics (Repre- 

 sented on Plate XVIII). 



TT T, ■ 1 f Bracon coccineum (fiffs. 53, 54); Iphiau- 



Hymenopteka Bracomd^ | ^^^ ^^.^^^^^ ^^g_ 5^^ .^ j- ^^^^^.^^^^. ^/^^ gg^^ 



CoLEOPTERA Longicomia Oberea Scutellaria (fig. 57). 



Hemiptera Rcduviidai Callilestes bicolor (tig. 58). 



Ill this group the pattern is certainly set by the 

 Braconidw, which are common, conspicuous, slow-flying 

 insects, protected by their strong smell. The Reduviid is 

 an admirable mimic of them (Batesian, as I believe) both 

 at rest and on the wing; it is a scarce species, and 

 frequents the same stations as the Braconids. The Longi- 

 corn agrees also in the latter respect, but its exact relation- 

 ship to.the group is doubtful; normally it is not a very 

 common species in Salisbury, but in one or two seasons it 

 has appeared quite plentifully, settling on low plants on 

 wooded kopjes. 



L. Diptera Mimicking Single Species of Hymcnoptcra rather 

 than the General Type of a Group. 



a. Asilid Fly Mimichir.g Xylocojnd Bcc (Represented on 

 Plate XXII). 



Hymenopteka. Dipteka. 



Xylocopa flavorufa (lig. 19). Hyperechia marslialli (fig. 20). 



[With reference to these insects Mr. Marshall wrote :] 



Salisbury, Feb. 12, 1899. — I was immensely delighted on 

 catching the large Asilid fly, and I have been delaying the 



