ADIATHETCS. HAMAXAS. 147 



as long as third, fifth about equal to third, the rest elongate, all 

 cyliudrical. Head depressed, sutures distinct, tumid behind the 

 eyes. Pronotum gently widened posteriorly. Elytra and wings 

 ample, blackish brown, smooth ; no costal keel to elytra. Legs 

 short ; tibia flattened only at the apex itself tarsi long, pale, 

 strongly pubescent. Abdomen gently dilated, densely punctulate, 

 lateral tubercles distinct ; segments smooth at the posterior margin 

 except the seventh ( § ) which is crenulate. Last dorsal segment 

 ample, transverse, smooth, depressed in the middle, with a pair of 

 small tubercles in the depression, and tumid over the forceps. 

 Pygidiumdeflexed, triangular, with the apex truncate and reflexed, 

 and a small tubercle on each side. Forceps with the branches 

 remote at the base, trigonal, nearly straight ; incurved at the 

 apex itself, the inner margin with a strong tooth near the base and 

 a small tooth beyond the middle. 

 The J is unknown. 



^2 



Length of body 17 mm. 



„ forceps .... 9 „ 



India (Bt-it. Mus.). 



Txjpe in the British Museum. 



This species has a strong superficial resemblance to CJielisocJies 

 morio, but the pygidium is different, the fourth, fifth and sixth 

 segments of the antennae are longer and cylindrical ; the tibise are 

 not depressed or sulcate above except at the extreme apex, and 

 the tarsi are long and compressed instead of short and depressed. 



On'ing to the structure of the tibise it is here placed in Adiathetus, 

 but it is highly desirable that the male be discovered and its true 

 affinities defined. 



The only known specimen is Kirby's type in the British Museum. 



Genus HAMAXAS, Burr. 



Hamaxas, Burr, (07i) pp. 126 & 133. 

 Chelisoches, Bor)n. (94) p. 393, (00-) p. 86 (pars). 



Type, Chdisoches fecc, Borm. 



Size small ; colour red, varied with black. Antennae with 19 

 segments ; third rather short, subconical ; fourth and fifth ovate, 

 together equalling third ; tlie rest elongate, subconical. Head 

 smooth, depressed, sutures obscure. Pronotum as broad as the 

 head, a little longer than broad, subovate, not broadened posteriorly, 

 all margins subconvex or rounded. Elytra and wings well 

 developed ; the former with no costal carina. Legs short, very 

 pubescent ; tibiae smooth above. Abdomen pubescent, depressecl, 

 parallel-sided, lateral tubercles distinct ; last dorsal segment of c5' 

 ample, of $ narrow. Pygidium of S and $ very small. 

 Eorceps depressed, arcuate ; straight in the $ . 



lianye. Burma, Malay Archipelago, and New Zealand. 



l2 



