1902] Harrington — Fauna Ottavvaensis. 221 



Family XVIII. — Bembicidse. 



39. Bembidula ventialis, Say. A common species upon goldenrod 



in Aug-ust ; 4 females, 3 males. 



40. Bembex spinol^e, Lepel. Much resembles in shape and markings 



some of the large paper-making wasps, but is easily distinguished by 

 the long beak-like labrum. Common in sandy spots in fields, where 

 its burrows are made, and very active ; 2 females, 2 males. 



41. Microbembex monodonta. Say. A smaller and more prettily 



marked insect, of which I have received a female from Mr. Guignard 

 who captured several. It has also been taken by Dr. Fletcher, but 

 I have not yet met with it. 



Family XIX. — Larridae. 



Subfamily I. —Larrince. 



42. Ancistromma distincta, Smith. One female captured on 26th 



July. This species is larger and has the tibiae more spinous than the 

 following species. Three basal segments ot abdomen red. 



43. Tachysphex quebecensis, Prov. Although I have at present 



only I female and i male in my collection this species is not uncom- 

 mon as several individuals have been taken by Mr. Guignard. The 

 metathorax is more coarsely sculptured than in our other members 

 of the genus. In the index published with his Add. Hym. Que., 

 Provancher gives this species as = abdominalis, but the 

 Larra abdominalis of Say is a Tac bytes. 



44. Tachysphex com p actus, Fox. One female seems to belong 



to this species ; the abdomen is coloured as in quebecensis, but 

 the metathorax is different. 



45. Tachysphex terminatus, Smith. A species easily recognized 



by the red tip of the abdomen ; 2 females, one male. I have also a 

 small (headless) male from Mr. Guignard under the name Larra 

 minor, a species described by Provancher from individuals sent to 

 him by that gentleman. In the description the legs are said to be 

 unarmed, but the spines, though feeble, can be easily seen. The 

 species is undoubtedly a synonym of terminatus. 



46. Tachysphex laevifrons. Smith (?) Provancher records a male 



which he received from Mr. Guignard as this species, and I have a 

 female which I doubtfully refer to it as I have not the description for 

 comparison. Fox speaks of the species as perhaps identical with 

 T. tarsatus, Say, the description of which applies pretty well to my 

 specimen. 



47. Tachysphex arcuatus. Smith (?) Provancher refers to this 



species a female received from Mr. Guignard. (Add. Hym., p. 26.) 



