180 KANSAS UNIVERSITY SCIENCE BULLETIN. 



not quite agree with that as given in Fox's diagnosis of the genus. The 

 peculiarly and strongly sculptured propodeum should serve to distinguish 

 distinctus. 



The insect is well distributed in the United States. 



Recapitulation and Comment. 



The Larridse of Kansas number fifty-eight species, which are 

 included in ten genera. All but two of these species have been 

 taken within the state by the Biological Survey of Kansas 

 University, between the years 1875 and 1913. 



The following table shows what proportion of the Larridte 

 of the United States, as represented by the ten genera, is 

 possessed by Kansas. The varieties are omitted here. 



Number of species. 

 Geiiiis. U. S. LarridcB. Kansas L.'irrirtEe. 



1. Larra 1 1 



2. Notogonia 3 1 



.3. Larropsis 21 12 



4. Tachvtes 31 12 



.3. Tachysphex 69 22 



6. Lyroda 2 2 



7. Plenoculus 12 2 



8. Niteliopsis 13 4 



9. Miscophus 2 1 



10. Bothynostethus 1 1 



Total 155 58 



The above enumeration may be a little underestimated. It is 

 possible that a few species (under these ten genera) have been 

 omitted. There is no doubt, however, that inasmuch as in 

 many instances species are described from one sex only, or by 

 comparing the insect with the descriptions only instead of 

 with known or related species, the list is not free from syno- 

 nyms. As far as tmdescribed material goes, there is a good 

 deal of such in various collections in the country. There are a 

 few genera of Larridse in this country, such as Miscopliinufi 

 and Pisonopis, which have not as yet been reported from this 

 state ; these represent comparatively few species, however, and 

 should, even with their addition, still maintain the total num- 

 ber of species for the United States below the 200 mark. 



Of the Kansas species, th^'rteen are described here as new. 

 Of these nine belong to the genu^ Tachysphex, two to Larrop- 

 sis, and one each to the genus Plenoculus and Niteliopsis. 



Miscophus and Plenoculus are now reported from Kansas 

 for the first time. 



