Xxiv MONTHLY PROCEEDINGS 



on postsoiitellum, tubercles, spot behind, and most of tegulse, all white; large 

 oblong mnrk on sides of metathorax, dot beneath wings and the pectus fulvous ; 

 basal enclosed space of metathorax obliquely striated, deeply channeled cen- 

 trally; legs entirely fulvous; wings hyaline, with the costal margin broadly 

 yellow, shading into black at tip, costal nervure fulvous; abdomen coarsely 

 and sparsely punctured, shining, segments 2 — 5 with a transverse median im- 

 pressed line, segments 1 — 4 above with a broad white band, five and six with 

 narrow apical bands, terminal segment and bands on venter ferruginous. 

 Length .45 inch. 



Hah. — Nevada. H. K. Morrison. 



Eucerceris siinilis. — 5.— Black, shining, sparsely and finely punc- 

 tured; head large, widened towards the mouth; sides of face, line between 

 antennae, clypeus, spot at base of mandibles, broad sinuous line on cheeks, 

 posterior margin of prothorax, line at base of scutellum, sometimes interrupted 

 into spots, line on postscutellum, ovate spot on sides of metathorax, two ovate 

 Bpots in basal enclosed space, two spots on pleura, dot on tegulse, spot on coxse, 

 tips of four anterior femora, posterior pair except ba.se and apex, most of the 

 tibise, band at apex of abdominal segments 1 — 5 dilated laterally, and band 

 on ventral segments 2 — 4, all yellow; clypeus flattened, toothed at apex; the 

 three or four basal joints of flagellum ferruginotis; metathorax finely punc- 

 tured, finely striated on the sides, basal enclosed space smooth, channeled 

 centrally; wings subhyaline, costal margin rather broadly fuscous; tarsi fer- 

 ruginous. Length .40 inch. 



^ . — The face and pectus entirely and most of the legs are yellow ; otherwise 

 the markings are much as in the 9 • 



Huh. — Nevada. H. K. Morrison. 



Eucerceris vittatifrons. — 'J,. — Black, shining; three stripes on the 

 face, continued on the clypeus, the central one narrowed above clypeus and 

 reaching the lower ocellus, spot behind summit of eyes, stripe on mandibles, 

 posterior margin of prothorax, line or two spots at base of scutellum, line on 

 postscutellum, line or spot on sides of metathorax, tubercles, spot behind, spot 

 on tegulee, line on four anterior tibise, narrow band on apical margin of ab- 

 dominal segments 1 — 6 more or less dilated laterally, and band or spots on 

 veutial segments 2 — 4, all yellowish-white; vertex closely punctured, face 

 sparsely so, as is also the mesothorax; basal enclosed space of metathorax 

 smooth or with subobsolete strise; wings hyaline, the costal margin beyond 

 stigma pale fuliginous; the knees and apex of posterior femora ferruginous; 

 abdomen sparsely and coarsely punctured. Length .40 inch. 



Hah. — Nevada. H. K. Morrison. 



The following additions to the Library of the American Entomo- 

 logical Society were announced : — 



Transactions of the American Entomological Society, vol. vii, No. 3. 

 From the Publication Committee. 



Proceedings of the Boston Society of Natural History, vol. xx", 

 pp. 129—176. From the Society. 



Bulletin of the Essex Institute, vol. xi, Nos. 1 — 3. From the 

 Institute. 



