Hymenoptera Collected on Isle of Pines. 293 



Family MUTILLID.^. 

 Genus Mutilla Linnaeus. 



20. Mutilla nigriceps Cresson(?). 



Two specimens from Los Indios, one taken in October, the other in 



November. (These specimens were compared by Dr. Holland with 



the type, and considered by him as the same species. The description 



given by Cresson calls for fourth and following segments to have black 



pubescence. In these specimens the fourth and fifth have ochraceous 



pubescence, like the third, while the sixth has black pubescence. 



S. A. Rohiver.) 



Family TIPHIID^. 



Genus Tiphia Fabricius. 



21. Tiphia sp. 



One male caught at Nueva Gerona, August 12, 1912. (Probably 

 represents a new species, but it is very unwise to describe new species 

 in this genus from males only. S. A. Rohwer.) 



Family SCOLIID/E. 

 Genus Campsomeris Guerin. 



22. Campsomeris trifasciata (Fabricius). 



Twenty-two specimens taken at Nueva Gerona from June to 

 September. 



23. Campsomeris atrata. 



Seventeen specimens caught at Nueva Gerona in July. 



Family EUMENID^. 

 Genus Eumenes Latreille. 



24. Eumenes ferruginea Cresson. 



Four specimens taken at Nueva Gerona, July and August. 



Genus Pachyodynerus Saussure. 



25. Pachyodynerus simplicicornis Saussure. 



One captured at Nueva Gerona in June, and three taken at Los 

 Indios in October and November. 



Family VESPID.F:. 

 Genus Polistes Latreille. 



26. Polistes lineatus (Fabricius). 



Six examples, Nueva Gerona, June, July, and August. 



