Sept.-Dec, 1920.] FORBES : NOTES ON THE CrAMBIN.^. 225 



the lower edge of the plate of i. iv and vi are lost, vii simple. These 

 characters are crambid except for the preservation of a second seta 

 at the bases of all the true legs; the type differs from the Galleriinae 

 in the nearly vertical, rather than horizontal placing of the setae iv 

 and V on the abdomen, the partly triordinal. rather than uni- and bi- 

 ordinal hooks, and the placing of the setoe of A9 which are in a 

 nearly vertical series. Chilo phragmilcUus also has the double setae 

 on T 2 and 3, so I suspect Fracker's specimen of C. plejadellus was 

 defective; pJiniymitcllus differs in having rho of the i)rothorax 

 rather lower than epsilon and distant from gamma as well as the 

 different proleg mentioned above, but has the characteristic last 

 spiracle of Diatrcco. 



The pupa of D. saccharalis is similarly aberrant, and also shows 

 some characters of the Galleriinae. It is typical of the Pyralidae, but 

 will run to the Galleriinae in Miss Mosher's key, on account of the 

 short maxillae, less than half as long as the fore wings, and obscure 

 pilifer. There is no middorsal ridge on the body and the sculpture is 

 of raised reticulations rising into pyramidal points, rather than of 

 spines. The prothorax is Galleriid, nearly half as long as the meso- 

 thorax. The other characters are : head with anterior rugosities, 

 obscuring the sutures, prothorax nearly 3% mesothorax in greatest 

 length, mesothorax with prominent sharp shoulders at base of wings, 

 overhanging deep grooves on the prothorax ; labrum on ventral sur- 

 face of body; maxillae 3^, the fore legs meeting behind them; labial 

 palpi lanceolate, as long as middle width of tongue, max. palpi a 

 minute triangle at base of middle legs, fore femora visible ; Aid well 

 set off by a dorsal and lateral transverse groove, with shallow lateral 

 furrow; cremaster obsolete, represented by a system of pyramidal 

 points on last three segments, without obvious setae. 



Genus Loxocrambus new genus. 



This form is evidently a derivative of Crambus, differing mainly 

 in the reduced costal venation and very early separation of M, from 

 Sc and R in the hind wing. It will run to CuUadia in Hampson's 

 key, but differs in wing form, and in the anastomosis of Sc and R. 

 The two genera appear to be separately derived from different groups 

 of Crambus. So far as I know, the secondary apex at M., is unique 

 in the Pvralids. 



