(3(j(J The Philippine Journal of Science m* 



Female, length, 13 millimeters (without rostrum) ; width, 6.5. 



Bucas Grande {Schultze). 



The spots in this species are much larger than in any other 

 of the P. erichsoni group; also, it is one of the shortest and 

 stoutest species of the genus. 



Pachyrrhynchus signaticollis Schultze. Plate 1, fig. 28 £ (lateral 

 view) ; Plate 9, fig. 2, 6 . 

 Paohyrrhync) i • aignaticoUis Schultze, Deutsche Ent. Zeitschr. (1922) 

 41, pi. 1, fig. 13. 

 Pachyrrhynchus transver sarins Heller, Stett. Ent. Zeitg. 84 

 (1923) 8. 



Related to P. erichsoni Waterh. Head, prothorax, and legs 

 glossy, elytra dull black. Rostrum in basal half with an oblong 

 depression reaching to front and a very prominent longitudinal 

 median groove reaching almost to vertex. Prothorax as long as 

 broad, impunctate, with an irregular, pale reddish or pink cross- 

 band in the middle, interrupted discally but expanded spotlike at 

 lateral margins. Elytra with regular rows of punctures, the 

 punctures farther apart than in P. erichsoni. Each elytron 

 with nine roundish pale reddish or pink scale spots which are 

 placed in three cross rows, two near base, two at the middle, 

 four at apical third, and one at apical triangle. 



Male, length, 11 millimeters (without rostrum) ; width, 4.5. 



Mindanao, Agusan Province, Butuan (C. M. Weber) . 

 Pachyrrhynchus apocyrtoides Schultze. Plate 1, fig. 27, $ (lateral 

 view) ; Plate 9, fig. 3, s . 

 Pachyrrhynclms apocyrtoides Schultze, Deutsche Ent. Zeitschr. 

 (1922) 39. 



Related to P. erichsoni Waterh. Head bluish black, protho- 

 rax, elytra, and legs dark brown with a violet sheen. Rostrum 

 divergent toward apex, basal half uniformly depressed with a 

 prominent short longitudinal medial groove. Prothorax glossy, 

 slightly broader than long, with a narrow creamy white anterior 

 submarginal scale stripe which extends to lateral margins, 

 forming a large irregular scale spot. In the middle toward each 

 lateral margin a small roundish spot. Elytra dull, finely coria- 

 ceous, with well-pronounced rows of punctures. Each elytron 

 with three groups of irregular crossbandlike scale markings, 

 the edges of which are not sharply defined. Two are located 

 near base, another more fascialike at the middle, and a series of 

 about five spots in apical third. 



