lllvyncliota collected in Birara and Lifu. 345 



DlNDYMUS PYROCHROA, Boisduval. 



Dysdercus pyrochroa, Boisduval, 1835, Astrolabe Ent. II, p. 

 642, PI. XI, fig. 9. 

 Hcib. Birara (Willcy), Aru, Moluccas, New Guinea, 

 Myso, etc. 



Genus Dysdercus, Serville. 

 Dysdercus, Serville, 1835, in Boisduval, Astrolabe, II, p. 64. 



Laporte fixed the type of the genus Astemma in 1833, 

 " Essai," p. 38. 



"Le genre Astemma a etc etabli sur la Salda pattieomis 

 de Fab." 



Astemma, Kirk., olim. 



Dysdercus sidm, Montrouzier. 



Dijsdccus (sic !) sides, Montr, and Sign., 1861, I.e., p. 68. 



In the Journal Bombay Nat. Hist. Soc, I lumped 

 together a number of forms under the name " cinyulatus." 

 Dr. Breddin has since kindly sent me specimens of cinyu- 

 latus and poecilus, and has explained the difference in the 

 Wiener. Ent. Zeit. 



I now find among Dr. Willey's captures what I believe 

 to be the true sidm. D. cinyulatus is distinguished by the 

 shining, polished, immaculate head (except the base 

 behind the eyes which is generally very narrowly blackish), 

 while poecilus and sidte have dull heads. In both of the 

 latter the base of the head beyond the eyes is blackish, 

 though generally more largely in sidsa. While in poecilus 

 (as in cinyulatus), the tylus is red, in sidsn it is blackish, the 

 black colour often encroaching well over the juga, etc.; 

 the rostrum is also entirely black (except sometimes the 

 extreme apex of the first segment) in sidiu, while in the 

 other two, at least the first segment is red. The red 

 colour in sidm is also darker and browner. These characters 

 seem constant, other colour characters are however un- 

 reliable in cinyulatus and poecilus, particularly that of the 

 Isevigate anterior transverse band on the pronotum. Sidss 

 is perhaps also more strongly punctured. 



Dr. Willey has taken A. sidx at Lifu, the original 

 habitat noted by Montrouzier. I have it also in my 

 collection from New Hebrides, New Caledonia and Loyalty 

 Islands. Stal records it from North and West Australia. 



