66 Z. BOUCEK 



Snodgrass, in particular the thorax (1910 : pi. 8, figs 35-39, pi. 15, fig. 15) and the 

 male gaster and genitalia (1941 : 36-37, pi. 8, figs Q-T). 



Biology. Parasite of Megachihne bees, occasionally including their Stelidine 

 parasites. The following list of the hosts repeats those listed by Peck (1963; 

 there the relevent references) and by Porter (1972) and includes a few new ones 

 marked with an asterisk* after the name: Anthidium marginatum (Say), 

 Ashmeadiella sp., Ashmeadiella aridula astragali Michener*, Dianthidium pudicum 

 consimile (Ashmead), Hoplitis producta (Cresson), Megachile brevis Say, M. 

 inermis Provancher, M. montivaga Cresson, M. relativa Cresson, M. rotundata 

 (Fabricius)*, Osmia atriventris Cresson, 0. calif ornica Cresson*, 0. lignaria Say*, 

 0. pumila Cresson, 0. rostrata Sandhouse*, 0. simillima Smith, Stelis sexmaculata 

 Ashmead, Stelis sp. 



Distribution. Southern Canada, U.S.A. (except Florida), Mexico; Hawaii 

 (? introduced). 



Material examined. 



Type data given in synonymy. 



Canada: S. Manitoba, S. Ontario (e.g. Ottawa, Shetland, Ridgeway), S. Quebec. 

 U.S.A. (several hundreds of $, <J): Oregon, Idaho, California, Nevada, Utah, 

 Colorado, New Mexico, Arizona, Kansas, Texas, Mississippi, Illinois, Indiana, 

 Ohio, New York, Vermont, Massachusetts, Connecticut, Pennsylvania, Maryland, 

 Virginia, North and South Carolina, Georgia. Mexico: Baja California (nr La Paz, 

 San Ignacio, Agua Verde, Catavinia, San Quintin, Concepcion Bay), Sonora (nr 

 Cocorit, Alamos, Minas Nuevas, Morrison, Magdalena, Guaymas, San Bernardo, 

 Ciudad Obregon, Estacion Llano), Chihuahua (Ciudad Camarge, Chihuahua, 

 Calaices), Coahuila (nr Saltillo), Durango (nr Alamillo), San Luis Potosi (and 

 Lepatillan, 3000 m), Guanajuato. Hawaii: Oahu, Ewa, 7.VU.1964, 1$ (/. W. 

 Beardsley) (BBM, Honolulu). 



Leucospis affinis floridana Cresson 



Leucospis affinis var. floridana Cresson, 1872 : 33, 9 <$• Syntypes, U.S.A.: Florida (ANS, 

 Philadelphia) . 



I have not seen the type-material but have examined several specimens identified 

 as floridana (mostly as subspecies of L. affinis) by Weld, Gahan and Burks. 



The variation and the intermediate forms between L. affinis affinis and L. affinis 

 floridana are mentioned above. Additionally I examined a female from Tampico, 

 Mexico, which seems to agree with the typical Floridan specimens. 



Biology. There are no definite host records known to me concerning this 

 form, but Porter (1972) in his paper on the Floridan Leucospis, although speaking 

 about L. affinis as a species and in general terms, mentions also a bee of the genus 

 Ashmeadiella which may concern a new record. 



Distribution. South-east U.S.A., mainly Florida; Mexico. 



