liF.roliT OF THE KNTOMOI,OGir AL SECTION 119 



ring. The rings on the first and second segments edged before and behind with dark 

 pubescence, especially on the dorsi;ni, the pubescence extending between the dorsal and 

 lateral pseudopods, thus enclosing the dorsal pseudopods in a dark ring. On each of 

 the third to the seventh segments, inclusive, is a patch of dark pubescence between the 

 lateral and dorsal and between the dorsal pseudopods — three patches on each ring — the 

 median patch being conspicuous. To the naked eye these median patches constitute a 

 median dorsal line of black dots. On each of the third to the sixth segments, inclusive, 

 are two patches of dark pubescence immediately anterior to the dorsal pseudopods. The 

 posterior margin of the eighth segment bears dark pubescence. The surface of the larva, 

 other than that bearing pubescence, is shiny and longitudinally striated. 



}[(ihire larva (Plate V., figs. 4-7) — Lengtli, 2.5 nnn. Colour yellowish-white. Mandibles 

 dark brown to black, slightly serrated. Thoracic segments shiny and longitudinally 

 sti-iated except the anterior niai-gins which are opaque and pubescent. On the prothoracic 

 segment are five longitudinal grooves — one ventral, two sublateral, two subdorsal — not 

 extending to the posterior border. On the meso- and meta-thoracic segments are eight ogjcription of 

 such grooves, four on either side. The first abdominal segment bears one pair of ventral the mature 

 pseudopods, the second segment one pair of ventral, one pair of lateral, the third to 

 the seventh inclusive two pairs of ventral and one pair of lateral. Traces of most of 

 the other pseudopods are present, especially of the dorsal pseudopods on the fourth to 

 the seventh segments inclusive. The pseudopods bear small colourless spines or hooks 

 and similar though smaller spines are situated between the pseudojiods and on the 

 dorsum of the first, second and third segments where the pseudopods are wanting. On 

 the dorsum of the first and second segments these spines constitute a double band. 

 The posterior thirds of the abdominal segments are shiny and longitudinally striated. 

 The anus is edged with pubescence. The siphon when exserted ajspears rather shorter 

 than the eighth segment. 



I'lipal case (Plate V., figs. 8-10) — Lengtli, 17 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 inclusive is a ring of 

 baekwardly pointing spines, shortest on the second segment and longest on the seventh. 

 The eighth segment terminates in a coronet of six teeth chestnut-brown in colour, 

 darker at the tips, the lateral pair by far the largest, the dorsal and ventral 

 pairs being about equal in size, the former sometimes slightly the larger. The dorsal 

 pairs arise from between the lateral teeth, the four teeth constituting a row. Ventrally 

 placed to this coronet are two rows of similar teeth, each row consisting of from two to 

 five teeth, the two rows together constituting an interrupted transverse row. These 

 teeth are unequal and vary in size and number in different specimens. 



The pupa, when first formed, is yellow with a greenish tinge, especially on the 

 thorax. Later, as the image within develops, the eyes show a deep maroon, and the 

 thorax becomes generally darker. 



Tahanii.': kiiKj!, Austen 

 lliilh'liii iif Knioniulnifiml llcsfinrch, Vol. I., p. 291 (.laiiiiiify. 1911) 



Plate II., fig. 2: Plate V., figs. 11-lH 



^ Length (four specimens) 13 to 10 mm. ; width of head 4-4 to ;r.'j nnn. ; widtli of fi-ont Taimnui 

 at vertex 0-5 mm. to just under 1 nun.; lengtli of wing 10 to 13 mm. 



Superficially somewhat resembling 7'. t.-vnioln, Pal. de Beauv., but distinguisluHl by 

 the more (juadrate shape and l)liicker colour of tlie frontal callus {ii,lr Fig. 12), the more 



