206 Ins. 
XIII. INSECTA. — HYMENOPTERA. 
[ 1904 ] 
Ptilothrix nudipes Burm. (as Meliphila) — (similis Fr.), Friese, p. 100, t. c. 
Rhathymus and Eurytis , characters, Cockerell, p. 208, Ann. Nat. Hist, 
xiv; R. armatus — {Odyneropsis holosericea Schr.), Friese, p. 100, 
Zeitschr. Hym. Dipt. iv. 
Robertsonella n. g. Osmiince , p. 22, R. glectsoni n. sp., Illinois, p. 23, Titus, 
J. N. York Ent. Soc. xii. 
Saropoda alpha , Australia, Cockerell, p. 204, Ann. Nat. Hist, xiv, n. sp. 
Rcirtetica n. g. Euceritce , p. 389, S. antarctica n. sp., Patagonia, p. 391, 
Holmberg, An. Mus. Buenos Aires (3) ii. 
Serapis rujipes, Cape Colony, Friese, p. 106, Zeitschr. Hym. Dipt, iv, n. sp. 
Serapista n. n. for Serapis Sm., Cockerell, p. 357, Canad. Ent. xxxvi. 
Sphecodes (. Drepanium ) olympicus, p. 230, S. ( Machaeris ) washing toni, 
p. 231, S. (S.) hesperellus , arvensiformis, p. 232, Oregon etc., Cockerell, 
Canad. Ent. xxxvi; S. veganus , pecosensis, New Mexico, Cockerell, 
p. 5, Entomologist 1905 ; S. arroyanus , New Mexico, Cockerell, 
p. 231, t. c. ; S. equator , Ecuador, Vachal, p. 314, Bull. Mus. Paris 
1904; JS. lunaris , Tucuman, Vachal, p. 26, Bev. Ent. franc, xxiii : 
n. spp. 
Stelis 07'natida, cf. Osmia. 
Svastra fulgurans, Argentina, Holmberg, p. 388, An. Mus. Buenos Aires 
(3) ‘ii, n. sp. 
Synhalonia frater aragalli subsp. n., S. cremdaticollis var. n. lippice , 
Cockerell, p. 25, Ann. Nat. Hist. xiv. 
Tapinotaspis n. g. p. 413, T. chacabucensis , sabularum , p. 415, n. spp., 
Argentina, Holmberg, An. Mus. Buenos Aires (3) ii. 
Teleutemnesta n. g. p. 400, T. fructifera , p. 402, scalaris , relata , p. 403, 
distincta , p. 404, separata , p. 405, La Plata, n. spp., Holmberg, t. c. 
Tctralonia melanura = (A nthoph. grisea Schl. and Megach. gasperini Schl., 
also T. atrifrons Sm.), Friese, p. 99, Zeitschr. Hym. Dipt, iv; T. 
analis — (Macroglossa oribazi Rad.), Friese, p. 100, t. c. 
Tetrapedia mexicana Rad. as (Epeicharis) — {jiorentinia D. T. = saussurei 
Fr.), Friese, p. 100, t. c. 
T. tucumana , gaidlei , Tucuman, Vachal, p. 22, Rev. Ent. franc, xxiii, 
n. spp. 
Thygater chrysophora , Argentina, Holmberg, p. 386, An. Mus. Buenos 
Aires (3) ii, n. sp. 
Thyreothrerama n. g. Euceritce , p. 391, T. rhopalocera , p. 393, desiderata, 
p. 395, abscondita, p. 396, La Plata, Holmberg, t. c. n. spp. 
Trachandrena amphibola, p. 159, indotata, ochropleura, crassihirta , per- 
densa , hadra, limarea , p. 160, cleodora , fuscicauda , auricauda , pernuda, 
p. 161, Oregon etc., Viereck, Canad. Ent. xxxvi, n. spp. 
Trachusa serratulce, habits, Adlerz, pp. 121-129, Ent. Tidskr. xxv. 
Trichocerapis n. g. type Tetralonia mirabilis Sm., Cockerell, p. 292, Ent. 
News Philad. xv. 
Triepeolus helianthi var. n. arizonensis, cressoni var. n. fraserce, Cockerell, 
p. 39, Ann. Nat. Hist. xiii. 
T. nautlana, Mexico, panarum, mesillce, p. 36, isocomce, p. 38, New Mexico, 
Cockerell, t. c. n. spp. 
Trigona heideri, occidentals, Schulz, p. 823, SB. Ak. Munchen 1904. 
T. catamarcensis , p. 378, remota, p. 379, Holmberg, An. Mus. Buenos 
Aires (3) ii, n. spp. 
Xylocopa collaris var. n. binghami , Cockerell, p. 30, Ann. Nat. Hist, xiv ; 
X. violaceu, piercing flowers for nectar, Cobelli, p. 11, Allg. Zeitschr. 
Ent. ix; X. and flowers in Paraguay, Schrottky, p. 346, Allg. 
Zeitschr. Ent. ix. 
X. nautlana, Mexico, Cockerell, p. 30, Ann. Nat. Hist, xiv, n. sp. 
Zacesta, referred to Panurgidce , characters, Titus, p. 26, J. N. York Ent. 
Soc. xii. 
