-^*J0 [3795-3S06] 



rsrciiE. 



\ April— June 1SS5. 



Cresson, Ezra Townsend. Descriplion of a 

 new species of masuris^ from the Rocky 

 Mountains. (Proc. Entom. soc. Pliihui., 

 June 1S63, V. 2, p. 69-71, pi. 4-) 



Describes mas<xri$ vespoidcs n. sp. ,f 9 =>'"' 9 

 variety from Colorado aiul insiittites a coinjiarison with 

 ;«. vt'spiformts^ *'tlie type of tlie gcmis"; points out 

 errors in the (ijjures. B: P. M. (3795) 



Cresson, Ezra Townsend. Description^; of 

 new Xorlii American hymenoptera in the 

 collection of the American entomoloi^ical 

 society- (Trans. Amer. entom. soc, Mar. 

 1S7S, V. 7, p. 61-136, il.) 



Describes S species of /niftur^us, 15 ca//io^sis, 5 per- 

 ditot ^ macrott-ra, 31 uomadot 2 osirisy ^ phiU'r<-miis,.i^ 

 cpeohis, croctsn? lata, 3 mrlixfa, n stelis, cofffoxoidi's u. 

 ^., c. pujictipftiiiisy It) roi-lioxys, iS osmia, ht-riadisf 

 dentictilalum, chilostoma caiifornicum ^ alcidamea tiun- 

 cata, 2^ attthidiimi, 37 mcgafhile, 4 ceratma^ xylocopa 

 azteca, 5 exomaiopst's, 7 ictrapejia, in all i new jjeiius 

 and 213 (212 new) species of apidae from North Amer- 

 ica, mostly described in but one sex and from not more 

 than tliree specimens; epeolus iiiercatHS re-described; 

 figures the nenration of tore wing of coe/i'oxoi'dt's, and 

 cliaracteristic structural details of 11 species; af iot-//oxys^ 

 2 of osmia, 6 of antbidium, and 1 each oi heriadcs.? and 

 alcidamea. ' B: P, M. (3796) 



Cresson, Ezra Townsend. Descrijitions of 

 new North American hymenoptera in the 

 collection of the American entomological 

 society. (Trans. Amer, entom. soc, Feb. 

 1S79, ^' 7' P- 201-214.) 



Describes 3 species of ca//iopsis, perdita ionalts^ 4 

 noifiada, phi'lereinus? prodrfcius, 3 melecta. stfUs inter- 

 riipta, 2 ht-riadi's?, S antln'dititu , 4 megachUe, 2 vielisso- 

 des, S anthophora, 2 xy/otopa, 3 rcntn's, apathns? call* 

 fornicns and panurgus nevadensts, in all 43 new species 

 of apidat' from North America; describes also 2 new 

 varieties ; calliopsis lateralis is a vai iety of c. edvurdxii. 

 [Colli, from p. t36, and on p. 255.] B: P. M. {3797) 



Cresson, Ezra Townsend. Descriptions of 

 new North American hymenoptera in the 

 collection of the American entomoloijical 

 society. (Trans. Amer. entom. soc, May 

 1879, V. 7' P- 255-2.';6.) 

 Describes 5 new species of «///rtC«.« from Colorado and 



Nevada, and 1 from Vancouver's Island 



B: P. M. (379S) 



Cresson, Ezra Townsend. Descriptions of 

 new species belonging to the sub-faniily 

 fimplariae found in America north of 

 Mexico. (Trans. Amer. entom. soc, Sep. 

 1S70, V. 3, p. 143-172.) 



Describes rtrwi-w/Vt'^ rupifisu/eNsis W'-.il^h, 2 species of 

 ephialles, epitnedx wiltii, i s pimpla, 3 pofysphinrtat c/is- 

 tnpyga onnuHpes, zzglypia, schizopyga frigida, 3 are- 

 ncira, cylloceria ocridt-ittalis, iS lam'pronoia, 2 mtuisa/Sy 

 2 p//ytodietits, xoridesborealis, eiixorides n. jj., e. ameri- 

 <a7nis, 3 xylouoniHS, 2 odonlomerus, in all i new pi'cnus 

 and 79 new species of North \-incv'\Q^n pinipfariae, and 

 gfives a list of the 24 g:enera and 127 species; j^t^ives syn- 

 optical tables to discriminate the 21 species o( piinp/a, 3 

 polysphiiictay zxglyptu, .\ arenetra. 22 Jampronota, 6 

 xyionoifius, 5 odontomirtis. B: P. M. (3799) 



Cresson, Ezra Townsend. Descriptions of 

 Mexican ichneumoniiiav. (Proc. Acad. nat. 

 sci. Philad., [v. 25]: 25 Mar.-S Apr. 1S73, 

 p. 104-176; 13 Jan. -17 Feb. 1S74, p. 374- 

 413.) [Rec, 40.] 



Describes 295 {2x0 new) species of 47 (ttottntts, toxo- 

 phoroides = 2 new) geneni or subgenera of ichnetimo- 

 ..idaf from Mexico. B: P.M. C3S00) 



Cresson, Ezra Townsend. Descriptions of 

 North American hymenoptera. in tlie col- 

 lection of the Entomological society of 

 Philadelphia. (Proc Entom. soc Philad., 

 June 1864, v. 3, p. 131-196.) 



Describes 5 (4 new) species of f'oenus, 2 new auiacus^ 

 76 new ichneumon and 12 new ise/inns all from North 

 America, with a synoptic table af groups of ichneumon 

 to facilitate determination; gives alphabetic index to 

 the species here described. B: P. M. (3S01) 



Cresson, Ezra Townsend. Descriptions of 

 North American hymenoptera, in the col- 

 lection of the Entonioloi^ical society of 

 Philadelphia. (Proc. Entom. soc. Philad., 

 Sep. 1S64, V. 3. p. 257-3-ii-) 



Describes 30 species of meso/eptus, 16 iryphon, 5 cU- 

 niscus^l exochus, tragus Jiavipeuuis, hopHsmenus tho- 

 racicus, 3C cryp/ux, 7 phygadeuon, 5 mesnstenusy and 3 

 r/iyssa, all new North American species, with synoptic 

 tables of groups of weso/eptus, tryfhon and cryptus, to 

 facilitate the determination of the species nere de- 

 scribed, and with alphabetic index to the species here 

 described. B: P. M. (3S02) 



Cresson, Ezra Townsend. Descriptions of 

 several new species of North American 

 afidae. (Proc. Entom. soc. Philad., Apr.- 

 May iS6^, v. 3, p. 3S-45.) 



Describes epeolus bifasciatus (f, sfe/is montana 9< 

 xylocopa californica $ , bombus consimi/is 5. b. centra- 

 lis $, and apathus ashtofti 9. nH new North American 

 species, and re-describes bombus borealis 9 5 cf • 



B: P. M. (3S03) 



Cresson, Ezra Townsend. Descriptions of 

 some new species of mittiUtt^ from Cali- 

 fornia. (Proc. Enloin. soc. Philad., June 

 US65, V. 4, p. 3S5-390.) 



Notice. (Gkr.stakckkr, A. Bericht . . . 

 1S65-1S66, halfte 2, 1S69. p. 25-26.) 



Describes 7 new species of mnlilla^ from California 

 anil Lower California. />: P, M, 13804) 



Cresson, Ezra Townsend. Descriptions of 

 two new genera of North America ith- 

 iieiimonidae- (Proc. Entom. soc. Philad., 

 Nov. 1864. V. 3, p. 397-402, I fig.) 



Describes ^/'rJ/iTrt n. p.,^. an^itma n. sp., lahena n. g^., 

 /. apicalis n. sp., and re-describes T ; Say's crypiits ffral- 

 lator -A^ labena grallaior; ligures structural cliaracters 

 o< grotea. B: P. M. (,iSos) 



Cresson, Ezra Townsend. Descriptions of 

 two new species of arolcx. (Trans. Amer. 

 entom. soc, Feb. 1S69, v. 2, p. 260.) 

 Gives a synoptical tabic of the c known North Amer. 



ican species of «/*oM«, ami d,-.^i-.ib(>< a. T/V/w//.e and <i. 



Tftmsttis, 2 new species, />'.■ /*. Af. (3806) 



