80 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Measurements. 



Total length, 61 mm. 



Length of pr on otum, 3.5 " 



Length of mesonotum, 10 " 



Length of abdomen, 38 " 



Length of tegmina, 4 " 



Length of wings, 34 " 



Length of anterior fem( )] a , 19.5 " 



Length of anterior tibia^ 19.5 " 



Length of median femoia 13.5 " 



Length of posterior femoia 18.5 " 



This locality extends the range of the species considerably to the 

 westward. 



Aruanoidea punctata (Gray). 



1835. Platycrana punctata Gray, Synopsis Phasm., p. 37. [East Indies.] 

 Two males ; Trong, Lower Siam. (Dr. W. L. Abbott.) [U. S. N. M.] 

 These specimens are identical in the pattern and intensity of the 



coloration. 



SubfamUy CLITUMNIN^. 

 Genus MACELLA Stil. 

 1875. Macella Stal, Recensio Orthopterorum, III, pp. 13, 70. 



Included Bacillus souchongia Westwood and Macella deniata Stal. 

 of which the former may be considered the type as it is well figured. 

 Macella caulodes-^ n. sp. 



Types.— d" and 9 ; Trong, Lower Siam. (Dr. W. L. Abbott.) [Cat . 

 No. 7,345, U. S. N. M.] 



Apparently not closely allied to any of the previously known species 

 of the genus ; the unarmed character of the eighth abdominal segment 

 and the rather straight cerci are very distinctive. 



c^. — Size rather small; form elongate; surface subsericeous. Head 

 elongate, somewhat depressed, evenly constricted posteriorly; eyes 

 subglobose, rather prominent; antenna? with the first joint elongate- 

 ovate, depressed, median longitudinal portion rounded, half the length 

 of the linear second joint. Pronotum longitudinal; anterior margin 

 broadly emarginate; posterior margin truncate; lateral margins with 

 the anterior half broadly and evenly emarginate, median longitudinal 

 carina distinct. jNIesonotum over five times the length of the prono- 

 tum, very slender, median carina distinct anteriorly. JMetanotum 

 (with median segment) about three-fourths the length of the meso- 

 notum; median segment very short, transverse. Abdomen with the 

 28 /caii/wJ/;r, i.e., resembling; a stem. 



