Vol. xxiii] ENTOMOLOGICAL NEWS. 253 



nulatus, and very long in proportion. One noted projected 

 freely from the face of a cliff, curved downward and was 

 about two inches long. The architect was not captured. 

 O. annulatus is common in Kansas. 



Odynerus geminus Cress. 



Scott County, August 24, 1910. 



This wasp was quite common in a bare strip along a road- 

 side near Scott City. A large number of males but no females 

 were seen here. 



As heretofore stated, the tunnels of geminus (PI. XV, fig. 7 

 and PI. XVI, figs. 1-4) had no mud tubes over them, and a part 

 at least, if not all, of the pellets of earth are deposited within 

 two or three inches from, or even closer to, the entrance of the 

 hole, and this makes their nests more easily discerned than 

 those of annulatus. 0. geminus was not seen making its bur- 

 rows in Scott County, though in Wichita County an Odynerus 

 was seen starting a hole and depositing the pellets extracted 

 therefrom about 1^/2 inches away from the excavation. 



The tunnels of geminus, which were often rather closely as- 

 sociated, were in barren hard soil or more or less sandy loam, 

 with plenty of lagoons and ponds in the vicinity. Several were 

 dug out, one of which is illustrated in Plate XV, figs. 6 and 7 in 

 vertical and in horizontal section. The holes are shallow as in 

 annulatus and vertical for some distance. It would appear 

 that geminus utilizes its holes for a second brood, possibly en- 

 larging or adding chambers to the old nest, for none of those 

 examined would indicate that they were newly made. One 

 nest contained refuse of old cocoons, one of the latter presum- 

 ably that of a parasite. Another revealed three small pupal 

 shells of a muscoidean fly and one decaying adult wasp and 

 pupa, while the empty cells had been used at one time. In one 

 nest, however, were two large cells, one containing two TTes- 

 perid larvae and the other a Hymenopterous grub. The Lepi- 

 dopterous larva was probably that of Pholisora catullus, which 

 was common in the vicinity. No wasp was taken at this nest, 

 but the latter was one of several tunnels constituting what ap- 

 peared to be a loose colony of Odynerus geminus. 



