HYMENOPTERA. 
541 
rhilanthus friyidtts (Smith), p. 87 ; P. politus (Say), p. 94; P. ventilahris 
(Fah.), p. 98 ; P. immtatm (Say), p. 100 ; P. soKvagus (Say), p. 103 ; P. 
(Smith), ibid. ; P. crnhroniformis (Smith), p. 104; Eucerceris zona- 
tm (Say), p. 105 ; E. canalicidatus (Say), p. 112 ; Cerceris fumipennis (Say), 
p. 113; C. clypeata (Dahlb.), p. 114; C. bicornuta (Gu^r,), p. 117 ; (7. sexta 
(Say), p. 119; C. nigrescens (Smith), p. 123; C. deserta (Say), p. 125; C. 
frontata (Say), p. 129 ; C. hidentata (Say), p. 130 ; C. verticalis (Smith), 
ibid. ; C. elegam (Smith), p. 131 ; C. rufo-picta (Smith), ibid. ; C. dufourii 
(Gu6r.), ibid. ; C. lecvigata (Smith), p. 1*32 ; and C. perhoscii (Gucr.), ibid. 
Crahro sexmacxdatus (Say) is described by Cresson, 1. c. iv. p. 485. 
Cresson (1. c. p. 404) indicates the characters of Larrada tarsata (Say), and 
describes L. fidiginom (Dahlb.) from Cuban specimens (I,. c.,p. 137). 
Monedida insularis and dissecta (Dahlb.) are described in detail by Cresson, 
1. c. pp. 143-144. 
Cresson (1. c. p. 459) describes a variety of Ammophila gryphus (Smith) 
from the Colorado Territory, and indicates the variations of A. luctuosa 
(Smith), 1. c. p. 402. 
Mellinus arvensis. Smith describes some peculiarities in the habits of this 
species. Ent. Annual, 1800, p. 132. 
New genera and species : — 
Eucerceris, g. n., Cresson, Proc. Ent. Soc. Phil. vol. v. p. 104. Allied to 
Cerceris ; venation in $ nearly as in Cerceris, different in cf ; 3rd submar- 
ginal cell in both sexes nearly quadrate, less oblique than in Cerceris. Known 
species Philanthus zonntns and canoHcidatns (Say). New species: Eucerceris 
laticeps, Cresson, 1. c. p. 107, E. superhus, Cress. 1. c. p. 108, E.jiarocincius, 
Cress. 1. c. p. 109, E. cingidatus, Cress. 1. c. p. 110, and E. fxdvipes, Cress, 
1. c. p. Ill, from North America. 
Crahro (Brachymerus') jiligranus, Costa, Ann. Mus, Zool. Nap. ii, p. 137, 
from Italy. 
Crahro {Rhopaluni) lignarius and C. hucephalus, Smith, Proc. Linn. Soc. 
viii. p. 86, from Morty. 
Crahro. Cresson (Proc. Ent. Soc. Phil. vol. iv.) describes 14 new species 
from the Colorado Territory : namely, C. ater, I. c. p. 477 ; C. paclmrdii, ibid. ; 
C. dilectus, 1. c. p. 478 ; C. vicinus, 1. c. p. 479 ; C. succinctus, ibid. ; C. con- 
spicuus, 1. c. p. 480 ; C. odyneroides, 1. c. p. 481 ; C. hellus, ibid. ; C. nigrifrons, 
1. c. p. 482 ; C. atrifrons, 1. c. p. 483 ; C. atriceps, ibid. ; C. contigims, 1. c. p. 484 ; 
C. montanus, ibid. ; and C. honestus, 1. c. p. 485 ; also C. auriceps, 1. c. p. 160, 
C. claviventris, 1. c. p. 151, and C. cuhensis, 1. c. p. 152, from Cuba. 
Oxyhclus intcrruptus, Cresson, 1. c. p. 476, O. similis, Cress. 1. c. p. 476, 
and O. parvus, ibid., from the Colorado 3’erritory. 
Oxyhelus analis, Cresson, 1. c. p. 149, from Cuba. 
Trypoxylon succinctum, Cresson, 1. c. p. 149, from Cuba. 
Pemphredon morio, Cresson, 1. c. p. 486, and P. mandihtdaris. Cress. 1. c. 
p. 487, from the Colorado Territory. 
Cemonus luesmaeli, Morawitz, Bull. Acad. St. P^tersb. tome vii. p. 469, 
and C. shuchardi, Moraw. 1. c. p. 460, from St. Petersburg. 
Eiodoxitus dahlhomi, Moraw. 1. c. p. 461, from St. Petersburg. 
