March, 1904 J ChITTENDEN : NOTES ON I.ANGURIA. 27 



maxilla, which is broad at the base and widely rounded at the apex. The 

 transverse median nervure of the anterior wings enters far before the 

 origin of the basal nervure ; marginal cell acuminate, but not sharply 

 so, scarcely attaining the costa at the apex ; first cubital cell the longer, 

 second narrowed at least one half above, the second transverse cubi- 

 tus strongly bent ; stigma small, narrow. Second joint of hind tarsi 

 normal, normally inserted on the first ; claws cleft ; pulvillus present. 

 Abdomen distinctly fasciate ; "pygidium triangular, entire, the hypo- 

 pygium normal " (^As/tm.). The above characters will I believe sepa- 

 rate the genus from any hitherto known and place it, at the same time, 

 in the Panurgidse. 



In Zacesta rufipes the mandibles are elongate, pointed sharply, 

 and with a poorly defined tooth set nearly half way back on the inner 

 side; clypeus is yellow on the apical half only, labrum yellow, man- 

 dibles yellow at base blending into ferruginous at apices : ocelli in a 

 curve ; antennae longer than head, scape deep brown, flagellum yel- 

 lowish ; tegulje yellowish, shining, hairy ; legs reddish-yellow, spurs 

 white, claws dark ; pubescence rather sparse, especially on thorax ; 

 abdominal segments 1-5 fasciate apically, 6 and 7 with dense short 

 appressed pubescence. All the pubescence is cinereous, that on thorax 

 and vertex slightly yellowed, and on legs appearing silvery and 

 glistening. 



Class I, HEXAPODA. 



Order II, OOLEOPTERA. 



BIOLOGIC NOTES ON SPECIES OF LANGURIA. 



By F. H. Chittenden, 

 Washington, D. C. 



Until the year 1879, when Languria mozardi was reported by Pro- 

 fessor J. H. Comstock in the stems of red clover (Ann. Rept. Comm. 

 Agr., 1879, P- i99),noneof the species ofZa/?^//r/d; were known to sub- 

 sist at the expense of useful plants ; in short, nothing appears to have 

 been published prior to that time of the larval food habits of our Amer- 

 ican representatives of the genus. Messrs. F. M. Webster andC. M. 

 Weed have both contributed to our knowledge of the biology of this 

 species, and the writer has furnished in Insect Life (Vol. II, pp. 346- 



