Mounted on slides : 

 Cecidomyia foliora Riiss. & Hook., C 10, P 23. 



HYMENOPTERA 

 Pinned specimens : 

 iVthyredon atriventris Cress., H 1. 

 Bombus afifinis Cress, worker, H 2. 

 Bombus appositus Cress, female 2 ; worker 2, H 4. 

 Bombus atrifasciatus Morr. female (kirbyellus), T 1. 

 Bombus comsimilis Cress, female; worker (vagans), H 2. 

 Bombus cooleyi Morr. female (edwardsii var.), T 1, C 1. 

 Bombus cooleyi var. B. Morr. female (edwardsii var.), T 1. 

 Bombus dorsalis Cress, female; worker (fervidus var.), H 2. 

 Bombus edwardsii Cress, female 2 ; worker 2, H 4. 

 Bombus mixtus Cress, female, H 1. 

 Bombus monardas Ckll. female, M? 1. 

 Bombus nevadensis Cress, female; worker, H 2. 



Bombus nevadensis aztecus Ckll. female (fervidus var. dorsalis), M? 1. 

 Bombus prunellse Ckll. female 1 ; worker 2, M ? 3. 

 Bombus ridingsii Cress, female 2 ; worker 2, H 4. 

 Bombus rufocinctus Cress, male, H 2. 

 Bombus scutellaris Cress, female 2 ; worker 1, H 3. 

 Bombus separatus Cress, female 3 ; worker 1 ; male 1, H 5. 

 Ceratina imarta Cress., H 1. 



Chlorion (Proterosphex) ashmeadi H. Fern., C 2. 

 Encyrtus thyreodontis Ash., P, 1 lot. 

 Enicospilus arcuatus Felt., C 1. 

 Enicospilus neotropicus Hook.. C 1. 

 Enicospilus purgatus arcuatus Felt., C 1, M 1, H 1. 

 Enicospilus thoracicus Cress.. H 1. 

 Eremotylus flavofuscus radialis Hook., C 2. 

 Eremotylus texanus Ash., H 1. 



Isodontia exornata H. Fern. (Chlorion exornatum), C 1. 

 Isodontia macrocephala cinerea H. Fern. (Chlorion aztecum cinereum) 



CI. 

 Lampronota americana Cress., H 1. 

 Lampronota scutellaris Cress., H 1. 

 Megachile sapellonis Ckll., CI. 

 Mutilla nestor Fox, H 1. 

 Ophion siossonje Davis, HI. 

 Panurginus aethiops Cress., H 1. 

 Phytodietus vulgaris Cress.. H 1. 

 Psithyrus ashtoni Cress, female, H 2. 

 Psithyrus latitarsus Morr. female, T 1, C 5. 

 Psithyrus variabilis Cress, female, H 2. 

 Sphex abdominalis Cress, female (Chlorion), T 1. 

 Sphex abdominal Cress, female (Chlorion), T 1. 

 Sphex bridiwelli H. Fern. (Chlorion), C 1, P. 1. 



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