12 



QuADRiNA DIAZOMA Giote. (I'lale 1\', tigs. 2 and 3.) 

 Quadrina diacoma Grote, Pap. I, 175 (1881) ; H. Edwards, Pap. IV, 109 (1884) ; 

 Dendrolimus diazoma Neumoegen & Dyar, Jour. N. Y. Ent. Soc. II, 159 (1894) ; 

 Eutricha oweni Barnes, Can. Ent. XXXVIII, 62 (1906). 



We have recently, through the kindness of Mr. F. X. Williams, 

 been able to have the single 9 type diazoma carefully compared with 

 several species submitted ; there seems no doubt but that ozveni is 

 synonymous ; it agrees in venation and, as far as can be ascertained 

 from the poor type specimen, in maculation. Apart from several 

 morphological differences it may be most readily distinguished from 

 coronada Barnes, with which it has been confused, by the fact that 

 the median band is of even width throughout; in coronada it is much 

 wider on costa than on inner margin, owing to the greater curvature 

 of the outer line. 



Early stages unknown, although the type specimens of owcui are 

 apparently bred. 



Habitat : — New Mexico ; Arizona. 



GENUS PRORIFRONS n. gen. (Type quadrilineata n. sp.) 



Eyes large, prominent, very sparsely haired, palpi stout, forming with front 

 a conical beak-like prominence ; antennae in $ with long pectinations ; body 

 stout, pilose, broadly tufted in $ se.x ; fore tibiae with well-developed epiphysis 

 in $ ; Primaries with vein R, from close to base; R; from just beyond middle of 

 cell, shortly stalked with R,i, the division occurring before the vein has passed 

 the ape.x of cell, R2 to apex of wing, Ra to outer margin just below ape.x; Ri 

 from behind apex of cell ; R3 connate or slightly stalked with Mi from apex ; Mj 

 and Ma, slightly separate, from lower angle ; Cui from opposite R- ; Cus from 

 near base. Secondaries with well developed intercostal cell, giving rise to veins 

 S. C. and Ri ; veins M: and Ma from lower angle of cell, connate or slightly 

 stalked; Cui from just behind angle of cell; Cu: rather approached to Cui. 

 First anal vein traceable on both wings. 



We have erected this genus for a number of Mexican forms, all 

 very similar in general appearance, of which we have seen but one 

 or two specimens of each ; it is possible that with more material at 

 one's disposal further subdivision will be necessary; for the present 

 it is more or less of a dumping ground for doubtful species which we 

 are unable to fit in elsewhere. The large beak-like prominence and 

 slightly hairy eyes are characteristic of the genus ; the hairs seem very 

 brittle and liable to break off, but a careful examination will usually 



