2*6 Schultze: Pachyrrhynchiis 631 



and several varieties have been added by Heller, 36 and 56 species 

 and 6 varieties by myself. 37 In 1918 I erected the monotypic 

 genus Prowpocyrtus, the type of which is P. insularis Schultze, 

 and in 1922 I recognized the necessity for the separation of the 

 subgenus Homalocyrtus from Metapocyrtus Heller, as a well- 

 characterized genus. Recently I described also the monotypic 

 genus Eumacrocyrtus. 



Key to the genera of Pachyrrhynchides, mainly as given by Heller. 

 a 1 . Rostrum at most with a fine, indistinct, basal cross groove, mostly with- 

 out the latter, apical half dorsally mostly bulging or swollen. 

 6*. Rostrum in apical half dorsally swollen, basal half dorsally broad 

 flattish depressed. 

 c\ Scape not reaching to hind margin of eye, elytra ovate. 



ef. Antennal scrobe distinctly defined, groovelike, curved backward 

 and downward. Episternal suture of metathorax grooved the 



whole length Pachyrrhyncnus Germar. 



d 2 . Antennal scrobe posteriorly enlarged to a triangular depression, 

 the upper margin of which is directed toward middle of eye, 

 the lower margin toward ventral side of rostrum. Episternal 

 suture of metathorax only anteriorly depressed. 



Sphenomorpha Behrens. 

 c 2 . Antennal scape reaching to hind margin of eye, elytra in both sexes 



somewhat depressed Eupachyrrhynchus Heller. 



b\ Rostrum in apical half not swollen, without a large dorsal depres- 

 sion, mostly with a medial longitudinal groove. 

 e\ Eyes almost hemispherically produced. 

 f. Scape not reaching to hind margin of eye, rostrum slightly longer 



than broad Pantorhytes Faust. 



A Scape reaching beyond hind margin of eye, prosternum slightly 



emarginate, elytra spherically inflated, basal margin not ridged. 



Apocyrtus Erichson. 



e 2 . Eyes slightly bulging, prothorax subcylindrical, elytra dorsally 



flattened, laterally strongly and abruptly declined in an acute 



ang j e Proapocyrtus Schultze. 



g\ Upper n dfced, rostrum regularly arched cross- 



wise as well as lengthwise, tapering toward apex. 



Pseudapocyrtus Heller. 

 g 3 . Upper margin of scrobe not ridged. 



h\ Hind femora not armed, or only with a short obtuse tubercle 



"Ent. Mitteil. 1 (1912) 309; Nova Guinea, Zool. 9 (1914) 647; Philip. 

 Journ Sci 8 D 10 (1915) 219; Deutsche Ent. Zeitschr. (1916) 281-289; 

 Philip! Journ. Sci. 19 (1921) 542-548; Tijdschr. v. Ent. (1923) 47; Stett. 



En -P^: £2 L. , D 7 d.12) ~W ,, (.IS) «,«£., 

 15 (1919) 549-557; 20 (1920) 199; Deutsche Ent. Zeitschr. (1922)^?^ 

 Philip. Journ. Sci. 21 (1922) 574-587; '. 



77-83; 



