CHARLES ROBERTSON 201 
Hemiptera (2)—Lygae.: Lygaeus; Caps.: Lygus. 
Heracleum lanatum (12: 459-60).—Blooms May 6—June 17; 
274 visitors observed, May 8—June 17; Pol, W. 
Long-tongued Bees (7)—Megachil.: Alcidamea simplex ¢ 9; 
Ceratin.: Ceratina ¢ 9, se; Ap.: Apis sc, fq; Nomad.: Heminomada 
2, Holonomada superba ¢', Nomada illinoensis 9, Phor 2; Eucer.: 
Tetralonia dilecta 9. 
Short-tongued Bees (38)—Prosopid.: Prosopis illinoensis ¢ 9, 
pygmaea ¢ 9, ab, saniculae J, sayi ¢ 9, fq, in cop, type, ziziae # 9, 
ab; Collet.: Colletes aestivalis ¢, inaequalis 9, sc; Halict. (9): 
Agapostemon radiatus se, Chloralictus pilosus sc, fq, sparsus se, 
versatus sc, fq, Evylaeus pectoralis se, fq, Halictus lerouxii, paral- 
lelus se, Oxystoglossa confusa, Seladonia; Sphecodini: Drepanium 
2, fq, Machaeris illinoensis 2, type, stygia 9, Proteraner ¢, Sphe- 
codes arvensis 9, heraclei 2, type, Sphecodium cressonii 2; Andren. 
(2): Andrena carlini, erythrogastra, pruni, sayi sc, Opandrena 
miserabilis sc, fq, cressonii sec, Parandrena, Ptilandrena g. maculati, 
Trachandrena claytoniae sc, fq, crataegi, forbesii sc, heraclei se, 
type, nuda se, fq, rugosa se, spiraeana. 
Other Hymenoptera (67)—Crabron.: Clytochrysus fq, Lopho- 
erabro, Ectemnius, Hypocrabro, Protothyreopus rufifemur, Pseudo- 
crabro fq, Rhopalum pedicellatum, scutellatum, Solenius fq, 
Xestocrabro 6-maculatus, texanus; Orybel.: Notoglossa americana, 
Oxybelus niger, 4-notatus fq; Sphec.: Chalybion, Chlorion, Seeli- 
phron, Sphex vulgaris; Larr.: Notogonidea, Tachysphex acutus; 
Pompil.: Anoplius illinoensis, virginiensis, Ceropales fraterna, 
Episyron, Planiceps feralis, Pompiloides marginatus, subviolaceus, 
Psammochares scelestus, tenebrosus; Vesp.: Polistes pallipes fq, 
variatus fq, rubiginosus, Vespula germanica, maculata; ELumen.: 
Ancistrocerus tigris, unifasciatus, Eumenes fraternus, Leionotus 
anormis, clypeatus, foraminatus, illinoensis, megaera, serophu- 
lariae, Symmorphus debilis, walshianus; Tiphi.: Tiphia clypeata, 
inornata, vulgaris ab, type; Chrysid.: Holopyga; Figit.: Eucoila, 
Eucoilidia; Chalcid.: Haltichella ornata, Elasmus, Perilampus ful- 
vicornis; Evani.: Foenus tarsatorius; Ichnewmon.: Ichneumon 
flavizonatus, jucundus, funestus, longulus, Lampronota americana, 
Phygadeuon vulgaris, Porizon conotracheli, Trogus vulpinus, Try- 
phon affinis, Metopius terminalis; Bracon.: Microbracon; Ten- 
thredin.: Dolerus aprilis. 
Diptera (137)—Mycetophil.: Sciara atrata fq, inconstans; 
Bibion.: Bibio albipennis, Dilophus obesulus fq, Scatopse pulicaria ; 
Taban.: Chrysops indus, striatus; Stratiomy.: Nemotelus fq, Odon- 
