496 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



Many parasites of this species were reared from the various lots 

 of huisache pods. These include Urosigalphus bruchi Cwfd., Glypto- 

 colastes hruchivorus Cwfd., Heterospilus prosopidis Vier., Lariophagus 

 texanus Cwfd., Cerambycohius cyaniceps Ashm., Ceramhycohiiis cush- 

 mani Cwid., .Cerambycohius hruchivorus Cwfd., Eurytoma (two or more 

 species undetermined), Catolaccus sp., Horismenus sp., Microhracon sp., 

 an undetermined Eupelmid, Parasierola distinguenda Kieff., Cepha- 

 lonomia hyalinipennis Ashm., and from one lot many specimens of a 

 very minute chalcid, the last possibly secondary. 



Pierce (1908b) has already recorded some of the above records,, 

 mentioning the following species as parasitic on " Laria sp. in Vachellia" 

 { = B. sailed): Eurytoma tylodermatis Ashm., '^ Cerambycohius cyaniceps 

 Ashm., C. cushmani Cwfd., C. hruchivorus Cwfd., and Urosigalphus 

 bruchi Cwfd. 



Several of the parasitic species were described from specimens 

 reared from this host. This is true of Glyptocolastes hruchivorus, 

 Lariophagus texanus, and Cerambycohius hruchivorus. 



Some of these parasites, notably Urosigalphus, Cerambycohius 

 cyaniceps, C. cushmani, and Horismenus, repeatedly attacked the 

 Bruchus in the pods in the confinement of small breeding cages, so 

 that several generations of parasites were reared under this unnatural 

 condition. A female Horismenus was observed by Mr. Pierce to 

 thrust her ovipositor into each end of an empty Bruchus egg-shell, 

 evidently trying to locate the hole by which the larva entered the pod. 

 Urosigalphus, Cerambycohius, Heterospilus, and Lariophagus have been 

 repeatedly observed running about over the pods searching for places 

 to oviposit. In one lot of pods collected April 22, 1907, Lariophagus 

 was still emerging on July 5; in another lot collected June 24, 1907, 

 Horismenus was still emerging on July 25 and Urosigalphus as late 

 as August 14; in a third lot collected August 10, 1907, there were 

 bred on September 20 four Glyptocolastes hruchivorus, three Ceramby- 

 cohius cushmani, three Urosigalphus bruchi, one Catolaccus sp., and 

 two Lariophagus texanus; and in a fourth lot, collected September 6, 

 1907, there were bred on September 21 one Cerambycohius cushmani, 

 four C. cyaniceps, six braconids (undetermined, either Glyptocolastes 

 texanus or Heterospilus prosopidis), three Catolaccus and one Urosi- 

 galphus. The last lot was allowed to remain in the cage over winter, 

 with the result that from March 14 to March 18 six specimens of 

 Urosigalphus, five of Horismenus, and four of B. sallcsi emerged. 



* Eurytoma tylodermatis Ashm. as used by Pierce throughout his paper, "A List 

 of Parasites Known to Attack American Rhynchophora," probably includes more 

 than one species. 



