82 LABIDUEID.E. 



3.3. Thorax with distinct median line ; 

 forceps of J gently arcuate, with 



no rectangular projection kudagcB, Burr, p. 84. 



2.2. Branches of forceps of ^ subcontiguous 



or contiguous, nearly straight, curved 



at the apex. 



3. Sides of 6th-9th abdominal seffmeuts 



of cJ with longitudinal keel along 



the striations. (Antennae and 



legs banded ; size small) annulipes, Luc, p. 84. 



3.3. Sideslof 6th-9th abdominal segments 

 of (S striate, rugulose but not 

 carinate. (Size large ; head red ; 

 legs long, clear yellow-brown) . . dubronii, Kirby, p. 85. 



Head red ; legs banded ; cJ unknown gaudens, Burr, p. 86. 



37. Anisolabis colossea, Dohm, 



Forcinella colossea, Dohm, (64) p. 286 ; Dubr. (79) p. 357. 

 Anisolabis colossea, Bonn. (94) p. 379, (00-) p. 47 ; Kii-hy, (04) p. 19. 

 Anisolabis colossea, var. minor. Burr, (02) p. 479. 



Size varying from 20 to 50 mm. in length. Build robust ; 

 colour red-brown passing into blackish. Antennae brown with 4th 

 and 5th segments almost globular, the rest pear-shaped. Pronotum 

 quadrate, with a transverse depression. Prosternum truncate 

 posteriorly. Metasternum long and narrow, lobe well produced 

 between posterior coxae, and rounded. Mesosternum narrow, 

 rounded posteriorly. Abdomen smooth, bro;id and flat ; sides of 

 last two or three segments of c? & 2 convex, slightly rugulose. Last 

 dorsal segment of S rectangular, broader than long, with a median 

 impression, rugulose posteriorly ; in $ somewhat narrower. The 

 penultimate ventral segment broadly rounded. Porceps in both 

 S and 5 with branches subcontiguous at the base, stout and 

 robust, trigonal, broad, gradually tapering, with the inner margin 

 crenulate, perfectly straight as far as the apex, where the points 

 are slightly incux'ved. 



Length of body 20-51 mm. 30-43 mm. 



„ forceps 6-8-5 „ 4-8 ,, 



Burma : Pegu, Palon, viii./ix. ; Karen-ni, Keba District, 3000- 

 3700 ft., iv., xii. {Genoa Mus.). 



Type. Undefined, in Paris, Vienna or Stettin. 



T'his earwig appears to be the commonest in Australia where it 

 attains an immense size ; the variety minor, however, is recorded, 

 from New South Wales, and it is the form which de Bormans records 

 from Burma. It is probable that the Burmese specimens belong 

 really to a distinct species. The forceps of the large specimens are 

 capable of giving a severe nip, and even of drawing blood from the 

 human finger. 



