CATALOGUE OF INSECTS. G43 



mottlings These robber-flies, though predatory, can scarcely be considered of 

 much real value to the farmer because they take anything that comes along, 

 useful or otherwise, and are just as ready to destroy bees as some harmful 

 species. 



The larvse are also carnivorous so far as known, and live in the ground or in 

 decaying wood. 



LEPTOGASTER Meigen. 



L. badius Loew. Jamesburg, VII, 4, Dunnfield, Del. Water Gap VII 8 15 

 Riverton, VII, 30. ' ' ' 



L. flavipes Loew. Newark, VI, 16, Dunnfield, VII, 15. 

 L. testaceus Loew. Westville (Jn), Caldwell (Cr). 

 L. incisularis Loew. Riverton, VII, 30, Atco. 

 L. histrio Wied. Princeton, VII, 21. 

 L. pictipes Loew. Clementon, V, 30, Atco, VI, 4, 18, Dunnfield, VII, 12. 



CERATURG-US Wied. 

 O. aurulentus Fabr. Westville, VIII, 21, 1892. 



C. cruciatus Say. Dunnfield, Del. Water Gap, VII, 8, 11 (Tn) Caldwell 



(Cr), Dover, VII, 16. 



DIOCTRIA Meigen 



D. albius Walk. Newark, Dunnfield, Del. Water Gap, VII, 14, 15. 



LAPHYSTIA Loew. 

 L. sexfasciata Say. Avalon, VII, 29, VIII, 2. 



CYRTOPOGON Loew. 

 O. chrysopog-on Loew. Clementon, V, 16. 



C. marginalis Loew. Clementon, V, 10 (Greene). 



DAULOPOGON Loew. 



D. opaculus Loew. New Jersey (Coll Am Ent Soc). 



D. terricola Johns. Clementon, V, 9, Wenonah, V, 14, Riverton, V, 20. 



HOLCOCEPHALA Jsenn. 



H. abdominalis Say. Princeton, VII, 21, Dunnfield, VII, 9 (Tn) Cumber- 

 land Co., IX, 1 (Sm). 



H. calva Loew. Princeton, VII, 21, Cumberland County, IX, 1. 



HOLOPOGON Loew. 



H. guttulata Wied. Clementon, V, 30, Newark, VI, 14, Jamesburg VII 4 

 Dunnfield, VII, 9. 



