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 Fivi])la is 

 probably Mtillerian, while that of the Reduviid is certainly 

 Batesiau. 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. Blade and Red Braconid Group and Mimics (Repre- 

 sented on Plate XVIII). 



TT 75 • 7 r Bracon coccineum (tigs. 53 54); Iphiau- 



\ lax pictus (fig. 55); J. nagrator (ng. o6). 

 CoLEOPTEiiA Longkornia Oberea Scutellaria (tig. 57). 



Hemipteha RcdaviidBz Callilestes bicolor (tig. 58). 



Ill this group the pattern is certainly set by the 

 BraconidcV, which are common, conspicuous, slow-Hying 

 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 ko])jes. 



L, Dij)t6ra Mimiching Single Species of Ht/mcnoptera rather 

 them the G-eneral Tijpe of a Groiq). 



a. Asilid Fly Mimicl-icg Xijlvcopid Bee (Represented on 

 Plate XXII). 



Hymexoptera. Diptera. 



Xylocopa tlavorufa (tig. 19). Hyperecliia marslialli (fig. 20). 



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



Scdishurg, FcJi. 12, 1899. — I was immensely delighted on 

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



