568 -A CENTURY OF PROGRESS IN THE NATURAL SCIENCES 



At present there are only a few workers actively publishing papers on the 

 Strepsiptera. Certainly one reason for this is the difficulty of getting enough 

 material for study. Male specimens, which offer the best characters for syste- 

 matic study, are generally rare. Exceptions to this rule have been pointed out 

 by MacSwain (1949), who collected 510 male Stylops by exposing 8 caged fe- 

 males, and by Bohart (1951), who reported nearly 300 male myrmecolacids 

 taken at light in the Philippines by E. S. Ross and by H. Hoogstraal. 



Although the idea of complete host-parasite specificity has been largely dis- 

 credited, the controversy with respect to the phylogenetic position of the order 

 still continues. Probably the majority of systematists favor the ordinal status 

 but a strong minority would place these insects with the Coleoptera, and a dis- 

 sident few attempt to relate them to whiteflies and scales. 



REFERENCES 



Bohart, R. M. 



1941. A revision of the Strepsiptera witli special reference to tlie species of North 

 America. Univ. Calif. Publ. Entom., 7:91-160. 



1943. New species of Halictophagus with a key to the genus in North America. Ann. 

 Entom. Soc. Amer., 36:341-359. 



1951. The Myrmecolacidae of the Philippines. Wasmann. Journ. Biol., 9:83-103. 



Carpentier, F. 



1939. Sur le parasitisme de la deuxieme forme larvaire d'Eoxenos lahoulienei Peyer. 

 Bull, and Ann. Soc. Entom. Belg., 79:451-468. 



HoFENEDER, K., and L. Fulmek 



1942-1943. Verzeichnis der Strepsiptera und ihrer Wirte. Arb. physiol. agnew. Entom. 

 Berlin-Dahlem, 9:179-185, 249-283; 10:32-58, 139-169, 196-230. 



KiRBY, W. 



1813. Strepsiptera, a new order of insects. . . . Trans. Linn. Soc. London, 11:86-123. 



LiNDBERG, H. 



1939. Der Parasitismus der auf Chloriona-Arten lebenden Strepsiptere ElencMnus 

 chlorio7iae n. sp. sowie die Einwirkung derselben auf ihren Wirt. Acta Zool. 

 Fennica, 22:1-179. 



MacSwain, J. W. 



1949. A method for collecting male Stylops. Pan-Pac. Entom., 25:89-90. 



Menge, a. 



1866. Ueber ein Rhipidopteren und einige andere im Bernstein eingeschlossene 

 Tiere. Schr. Naturf. Ges. Danzig, ser. 2, 1 : 3-4. 



Nassonow, N. V. 



1893. On the morphology of Stylops melittae. Warsaw Univ. News (1893), pp. 1-30. 

 (In Russian.) 



Ogloblin, a. a. 



1939. The Strepsiptera parasites of ants. 8th Internat. Congr. Entom. Berlin, Ver- 

 handl., 2:1277-1284. 



Parker, H. L., and H. D. Smith 



1934. Further notes on Eoxenos lahoulhenei Peyerimhoff, with a description of the 

 male. Ann. Entom. Soc. Amer., 27:468-479. 



