352 
HYMENOPTERA. 
H. Burmeister, 1. c. pp. 97-129, ‘ Bembicidae Argentiuae/ discusses the 
species occurring in La Plata, giving a summary of literature and ex- 
ternal anatomy. Taschenberg has sunk many good species as varieties ; 
Monedula dorhignii^ Gru4r., is a ixMQ Monedula. 
Cemonus unicolovy Lep., in briar stems; Bull. Soc. Ent. Fr. (6) iv. 
p. cxxviii. On its habits ; J. Lichtenstein, tom. cit. p. clii. 
Waagenia^ g. n., Kriechbaumer, 1. c. p. 55. Sphegides: pronotum 
tuberculated in the middle of posterior margin ; anterior wings with 2 
complete cubital cells, abdomen pedunculate, &c. W. sikkimensis, sp. n., 
id. ibid., Sikkim. 
Hemidula, sub-g. n. of Monedula. Burmeister, 1. c. p. 119. Middle 
femora of $ with no teeth, or with the indication of one simple tooth, 
at the knee ; body, and especially abdomen, more slender. M. integra, 
sp. n., id. ibid., S. Corrientes, and M. guttata and singularis, Gerst. 
Bembidula, g. n., id. 1. c. p. 122. Mouth organs of Monedula and 
abdomen of Bembex. Monedula discisa, Gerst., and Bembidula cingu- 
lata, sp. n., id. 1. c. p. 125, Cordova. 
Scolia consularis, sp. n., id. 1. c. p. 46, La Plata (? = Elis variegata, 
Sauss., $ ). 
Pompilus elongatus, p. 188, fig. 3, oniatissimus, p. 191, fig. 4, spp. nn., 
Ritsema, 1. c. pi. xi. Lower Guinea. 
Ammopliila guineensis, sp. n., id. 1. c. p. 192, Ijower Guinea. 
Larrada vollenh,ov[^en']ia, sp. n., id. 1. c. p. 194, pi. xi. fig. 5, Lower 
Guinea. 
Monedula arcuata, p. 112, Uruguay, carbonaria, p. 113, Rio Guiaqui- 
raro, decorata, p. 114, Mendoza, Burmeister, k c. spp. nn. 
Stizus nevadensis, sp. n., E. T. Cresson, Tr. Am. Ent. Soc. v. p. 99, 
Nevada. 
Mutillidj]. 
C. A. Blake’s ‘ Synopsis of the Mutillidcv of North America,’ Tr. Am. 
Ent. Soc. iii. pp. 217-205 (1871), noticed from Roe. Am. Ent. for 1871, 
in Zool. Rec. x. pp. 356 & 357, having been since seen by the Recorder, is 
now more fully treated. A general account is given of the structure 
and habits of the various genera. 102 N. American species of Mutilla 
(including Psammotherma, Mutilla proper, and a third sub-genus charac- 
terized as new) are described as known to the author, including many 
now, and 19 others are mentioned ; and 18 species of a new genus, one 
of Myrmosa, and 2 of Methoca, are characterized. Tables of the species 
of Mutilla are given, both by ^ $ characters ; the wing-neuration 
and structure of the first abdominal segment are figured in 3 divisions of 
Mutilla^ proper (p. 227), and the bodies of M. sumichrasti, Sauss., arach- 
noides and cruciata, Smith, are figured. M. ornativentris, Cresson, ? = 
hexagona. Say, $ ; M. palliceps, Cress., ? = senex, Gu^r., $ ; M. gloriosa, 
Sauss., ? = sackeni, Cress. 
The following new species, &c., are described 
Mutilla {Psammotherma) ajax, p. 226, Florida, M. (proper) briaxus, 
p. 227, Pennsylvania, Delaware (? = vigilans. Say), grotii, p. 228, 
Colorado, oajaca,^. 228, fig, leona, p. 230, cinaloa, yucatana, p. 231, 
