OF TABANUS DIT.ENIATUS AND TABA NUS KINGI. 



273 



and bear at the apices long strong hooks, chestnut brown in colour, some 

 times darker at the tips. On the median pair o£ ventral pseudopods on 

 the fourth, fifth, and sixth segtnents these hooks form a complete circle, 

 bat on the remaining pseudopods bearing hooks the circle is incomplete. 

 Immediately below these hooks is a row of tin}^ spines. Immediately 

 behind the ventral pseudopods on the first to the seventh segments is a 

 shiny striated area. On the venter of the eighth segment, anteriorly placed 

 to the anus, is a pseudopod equal in size and similar to the ventral 

 pseudopods on the other segments, and bearing an incomplete circle of 

 hooks (fig. 6, d^ e). Scattered over the surface of the larva are occasional 

 black hairs. The siphon when exserted is shorter than the eighth segment, 

 and bears a number of black hairs. The dark appearance of the larva is 

 due to tiny dots of pubescence arranged closely together except on the shiny 

 areas mentioned above. 



The skin of the larva frequently bears scars of old wounds. 



Pupal case (fig. 7). — Length 20 mm. Colour yellowish brown, thoracic 

 tubercles and abdominal spiracles darker, the former bearing hairs. On 

 the posterior third of the second to the seventh abdominal segments is a 



Fig. 7. — Pupal case of Tahanus kingi, Austen. 



a, lateral view of pupal case, X 3 ; 6, lateral view of anal segment, X 6 ; 

 c, posterior view of same (inverted), X 6, 



ring of backwardly pointing spines, shortest on the second segment and 

 longest on the seventh. The eighth segment terminates in a coronet of six 

 teeth (fig. 7, h, c), chestnut brown in colour, darker at the tips, the lateral 

 pair by far the largest, the dorsal and ventral pairs being equal in size. 

 These teeth are arranged roughly in a circle. Ventrally placed to this 

 coronet are two rows of five comparatively thin spines, of varying lengths, 

 together constituting an interrupted transverse row. Dorso-laterally placed 

 to the coronet are two rows of spines similar to the ventral row. 



The dorsum of the abdomen is sometimes clothed with black pubescence 

 arranged in four longitudinal stripes. On the sixth and seventh segments 

 these stripes merge, and on the seventh segment the pubescence is confined 

 to the posterior third. The pubescence is wanting on the dorsum of the 



