ICHNEUMONIDJC. 
363 
Trachynotus texanus, id. Tr. Am. Ent. Soc. iv. p. 169, Texas. 
Charops tibialis, id. I. c. p. 173, Texas, 
Porizon audax, orbitalis, hyalinipennis, stigmaterus, p. 174, facilis and 
macer, and P. (?) agilis, p. 175, P. (?) delicatus, p. 176, id. I. c. Texas. 
Cremastus piceus, id. I. c. p. 176, Texas. 
Iphosoma texanum, id. ibid. Texas; /. mexicanum, p. 380, azteca, p. 381, 
Mexico, id. P. Ac. Philad. 1873. 
Campoplex opimus, tepanecus, p. 382, lacivius [sic], aurifer, Jlavipennis, 
melliventris, p. 383, lectus, gnarus, calcaratus, macilentus, p. 384, divisus, 
maceratiis, nefastus, legalis, p. 385, incequalipes, p. 386, id. P. Ac. Philad. 
1873, Mexico; C. expertus, p. 171, bellus, p. 172, id. Tr. Am. Ent. Soc. iv. 
Texas. 
Limneria (?) insolens, id. P. Ac. Philad. 1873, p. 386, Mexico ; L. cor- 
rupta, illepida, infesta, -p. 112, fura smd rivalis, -p. 173, id. Tr. Am. Ent. 
Soc. iv. Texas. 
Mesochorus totanacus, id. P. Ac. Philad. 1873, p. 388; Mexico ; M. uni- 
fonnis and electilis, id. Tr. Am. Ent. Soc. iv. p. 171, Texas. 
Pristomerus mexicanus, id. P. Ac. Philad. 1873, p. 388, Mexico. 
Exeiastes vittatipes, tarsalis, mexicanus, id. P. Ac. Philad. 1873, p. 389, 
Mexico ; E. biocidatus (? = decoloratus, Cress., $ ) id. Tr. Am. Ent. Soc. 
iv. p. 169, Texas; E. suaveolens, Walsh, Tr. Ac. St. Louis, iii. p. 146, 
N. America. 
Tryphonides. 
Ceratosoma, Cress. : the mouth is rostriform, and in the $ the claw has 
7 or 8 long pectinations. C. apicale and fasciatum^ Cress., are re- 
described ; they differ solely in wing-coloration, and occur together : 
Walsh, Tr. Ac. St. Louis, iii. pp. 101-103. Exenteron flavicoxus, Cress., 
$ described : id. I. c. p. 105. 
Metopius pinatorius and cordiger, BruUe, = pollinctorius, Say; id. I. c~ 
p. 91. 
Catocentrus, g. n., id. I. c p. 89. Allied to Metopius, but with facial 
swelling not scutiform, scutellum rounded, areola small, &c. ; also allied 
to Exochus and Orthocentrus, but with non-inflated cheeks, constHcted 
abdomen, &c. Metopius philanthoides, Walsh. 
Exochiscus, g. n., id. I. c. p. 96. Differs from Exochus by its large 
pentagonal areolet, long claws, and long and coarsely sculptured 1st and 
2nd abdominal joints ; from Periope, by its sessile abdomen ; from Ortho- 
centrus, by its simple claws. E. pusillus, sp. n., id. I. c. p. 97, N. America. 
Pohjrhabdus, g. n., id. I. c. p. 98. Differs from Exochus by its cari- 
nated abdomen, excavated venter, and short wings, and from Alomyia by 
its sessile abdomen, obsolete areolet, &c. P. cariniger, sp. n., id. I. c. 
p. 98, N. America. 
Pachyonyx, g. n., id. I. c. p. 99 & 100 (= Orthocentrus, Grav. ; Cresson, 
op. cit. p. 100). P. trifasciatus, p. 100, stigmatias, p. 101, spp. nn., 
Walsh, /. c. N. America. 
Mesoleptus aztecus, p. 390, M. ? anguina, p. 391, Mexico, Cresson, P. Ac 
Philad. 1873 ; M. bicoloratus and delicatus, p. 166, M. ? strigosus, rotun- 
diceps, and stigmaterus, p. 167, Texas, id. Tr. Am. Ent. Soc. iv. 
spp. nn. 
