ADDENDA ET CORRIGENDA 771 



Page Line 



there a little while the third slifjhtly contracts but so that it extends 

 broadly from the hiiulmargiii to the middle of the eyes before the 

 contracted neck, thoui^h the middle of this space may have a faint 

 reddish dot (at the jilacc where the band is almost interrupted in fig. 

 407); the two middle pale bands arc very narrow (and even the other two 

 rather narrow) at their front ends ; the apical dark space is rather 

 tridcntate on its lower margin. Specimens of II. pliirialis taken in a 

 wood or on fairly dry ground close by on the same day all had the 

 middle band well interrupted as in fig. 2'23, and had the pale bands wider 

 than the dark bands. One of these specimens of //. Bi(foti has the basal 

 antennal joint dull reddish. The whitish spot on the thorax immediately 

 after the suture is more conspicuous in //. Bitfoti than in the other 

 species. 



360. Therioplectes troptcns. A large number (38) of female specimens of a 



Theriophrtes which were taken by Colonel Ycrbury at Crymlyn Bog in 

 Glamorgan on July 24, 1908, do not agree at all well with the specimens 

 I have described, but are I believe more truly representative of the 

 species as known on the continent They are smaller and less squarely 

 built than my original specimens ; all ha\ e a tuft of long black hairs at 

 the back of the vertex (whereby they are undoubtedly distinct from 

 T. montanus), and have the frons with rather long black hairs as in 

 T. tropicus, with the exception of one specimen which has shorter and 

 more numerous yellow hairs ( ? black hairs abraded) ; the palpi have a 

 dirty yellow ground colour as in T. tropicus ; they are nearly allied to the 

 species I have described as T. solstilialis but are less red orange. If 

 these specimens are true T. tropicus it seems impossible that T. 

 hisiqnatus can be a variety, but the absence of undoubted males renders 

 it very difficult to limit the species. When these specimens occurred in 

 abimdance one specimen of T. distingiiendus also occurred but was 

 easily distinguished. 



366. T. monianns. Amidst the swarms of biting flies observed by Colonel 



Yerbury at Crymlyn Bog on July 24, 1908, were three females of this 

 species, and a note was made that the eyes were " blue-green with three 

 " dark orange bands, middle one at lower level of lower callus, upper at 

 " lower level of upper callus, and third band just above antennae." 



384. AtyJutus fulvus. One female (with another one seen) occurred at Crymlyn 



Bog on July 24, 1908. 



403. Tabanus autumnalis occurred at Walton on Naze as early as June 6, 1908. 



431. Chrysops quadrata was common at Crymlyn Bog on July 24, 1903, in 



company with C. ccecutiens and many other Tabaiiidce. 



436. 8. C. nvlanopleara Wahlb. is in my opinion a good species. I have examined 

 Wahlberg's original specimens. 



453. Fig. C. read Pterodontia. The " Fig." seven lines from the bottom is 260. 



460. Acrocera (flohulus. Colonel Yerbury caught a female at Dartford in Kent 



on July 5, 1908, and Mr Donisthorpe took it in Sherwood Forest. 



536. 1 ^ ^''°™ \l. Belzehul instead of i. Belzehuh. 

 I bottom. J 



539. 6. The reference "Vet. Acad. Handl." is incorrect, and I cannot trace the 



correct reference. 



A reconsideration of the venation of Scenopinidw has brought me to the 



595, conclusion that the discal cell is wholly formed by the discal vein, and 



596, ] that consequently the discal vein has its normal two branches, while the 



597, postical vein is reduced to its lower branch and a stump of its upper 

 branch (as in many Cyslidcc). 



