1920.] F. F. IvAmi,A\v : Notes on dragonfly larvae. 187 



14 mm. ; mask 3"25 mm. ; antemiae 3'5 mm. Breadth of head 4 

 mm. ; length of hindermost femur 6 mm. 



The creature is smooth and slender with long legs, and is of a 

 nearly uniform sandy colour. 



Head, widest across the middle of the large eyes ; hind 

 angles rounded, not spinulose. Antennae seven-jointed, the first 

 and second segments stouter than the remainder, the third segment 

 is the longest. lyabium elongate, 

 with hinge reaching to between 

 second and third pairs of legs poste- 

 riorly. Median lobe cleft by a me- 

 dian incision which extends just 

 below the level of the base of the 

 lateral lobes. Lateral lobes with 

 a long and strong movable hook, Text-fig. 3.— Lateral anal gill of 

 and with two stout incurved hooks Megalesfes major. 



on the end ; the outer hook simple 



and half as large as the inner. Inner margin of lobe finely serrate. 



No raptorial setae. 



Legs slender, longitudinally carinate. Wings reaching to base 

 of fifth segment. Abdomen cylindric, segment 10 slightly com- 

 pressed, a dorsal ridge is present on 8-9-10, margin of the last 

 segment entire. Lateral carinae on segments 1-9 ; on 6-9 these 

 carinae each end apically in a small sharply pointed spine. Gills 

 elongate oval, narrowed somewhat at their bases, each jointed on 

 to a small basal segment, rounded regularly at their apices. 



ANISOPTERA. 



CORD ULEGA S TRINA E. 



Anotogastcr sp. 



I $ Dalat, Langbian Province, Southern Annam, 5,000 ft., C. 

 Boden Kloss. March— May 1918. i^- 



Total length 45 mm ; anal appendages 3-25 mm. additional. 

 Head 9 mm. in width, equal to the greatest width of the body; 

 labium 12 mm. long. Length of adbomen 33 mm; of hinder 

 wing-case 9 mm. The specimen is a female, probably in the last 

 instar. It is interesting geographically as it is 1 believe the first 

 Cordulegastrine recorded from so far south, in Asia at any rate. I 

 do not know of any record hitherto south of the Tropic of Cancer. 

 Also its large size makes it remarkable and leads me to suppose 

 that it is probably a larva of Anotogaster sieholdi, the largest 

 species of the subfamily. The adult female of this Japanese species 

 has a span of over 120 mm. 



