CHARLES ROBERTSON 205 
Neuroptera (1)—Chrysop.: Chrysopa. 
Aug. 20, 1909, insects taken as they came showed the following 
30 species and 85 individuals: 
Short-tongued Bees (1: 3)—Halict.: Chloralictus versatus 3. 
Other Hymenoptera (15: 30)—Crabron.: Solenius 1, Xesto- 
erabro texanus 3; Oxybel.: Notoglossa frontalis 1; Sphec.: Chaly- 
bion 15, Priononyx atrata 1, Sceliphron 4; Larr.: Lyroda 1; Nys- 
son.: Hoplisus simillimus 1, Pseudoplisus phaleratus 2; Pompil.: 
Lophopompilus philadelphicus 2, Prioenemoides fulvicornis 2; 
Vesp.: Polistes rubiginosus 1, variatus 2; Tiphi.: Tiphia clypeata 
1; Chrysid. Tetrachrysis caerulans 1. 
Diptera (14: 44)—Syrph.: Spilomyia longicornis 1, Syritta 5, 
Syrphus ribesii 1; Tachin.: Alophora aeneoventris 1, Belvosia uni- 
fasciata 9, Exorista pyste 1, Ocyptera dosiades 1, Pachyophthalmus 
signatus 4, Spallanzania 2; Sarcophag.: Helicobia helicis 7, Sar- 
cophaga assidua 4, cimbicis 5; Musc.: Morellia 2; Anthomy.: An- 
thomyiella 1. 
Pastinaca sativa (int, 12:459-60).—Blooms May 15—August 
10; 298 visitors observed, June 2—July 9; Pol, Y. 
Long-tongued Bees (7)—Megachil.: Megachile petulans 9; 
Ceratin.: Ceratina 9, sc; Bomb.: Bombias separatus 9, Bombus 
americanorum @° %, impatiens 9; Ap.: Apis; Anthophor.: Anthe- 
moessa <. 
Short-tongued Bees (25)—Prosopid.: Prosopis illinoensis ¢ 9, 
type, pygmaea 9, sayi ¢ 9, ziziae ¢ 9; Collet.: Colletes brevicornis 
3, type, eulophi ¢ 9; Halict.: Chloralictus sparsus ¢ 9, se, ab, type, 
versatus ¢ 9, sc, Curtisapis forbesii ¢, Evylaeus arcuatus 9, pee- 
toralis 2, sec, Halictus parallelus 2, Oxystoglossa confusa ?, Sela- 
donia ¢; Sphecodini: Sphecodes arvensis ¢ 9°, ab, clematidis ¢, 
Sphecodium cressonii ¢ 9; Andren.: Andrena platyparia ¢, pruni 
9, se, Opandrena cressonii 2, personata 9, se, type, serotina 9, type, 
Trachandrena crataegi 9, hippotes 9, nuda 9, se. 
Other Hymenoptera (94)—Crabron.: Clytochrysus, Ectemnius, 
Hypocrabro, Protothyreopus rufifemur, Pseudocrabro, Solenius fq, 
Xestocrabro 6-maculatus, trifasciatus; Orybel.: Notoglossa ameri- 
cana, emarginata, frontalis type, inornata, Oxybelus 4-notatus; 
Tryporyl.: Trypoxylon clavatum; Philanth.: Cerceris clypeata, 
compacta, fumipennis, kennicottii, Philanthus punctatus; Sphee.: 
Ammobia ichneumonea, pennsylvanica, Chalybion, Isodontia api- 
ealis, Sceliphron, Sphex nigricans, vulgaris; Larr.: Astatus unicolor, 
Lyroda; Nysson.: Pseudoplisus phaleratus; Pompil.: Anoplius illi- 
noensis, virginiensis, Arachnoproctonus, Ceropales fraterna, 
