A. A. GIRAULT, 75 



I have examined the types of this species in the United 

 States National Museum consisting at the time of two tag- 

 mounted females bearing the following labels : " Centrobia 

 odonatce Ashm. 9 type."; "Type No. 5321, U. S. N. M." ; 

 and "8604"l Aug. 12, '99." The following descriptive 

 notes were taken from them ; 



The fore wings have moderately short marginal fringes, the discal 

 ciliation moderately dense but arranged in regular radiating lines, the 

 abdomen conic-ovate, longer than the head and thorax taken together 

 and attenuate caudad into an exserted ovipositor as long as, or slightly 

 more so, the half-length of the abdomen ; marginal and submarginal 

 veins straight, the latter much longer than the former ; postmarginal 

 vein absent. Stigmal vein short but not sessile, well defined, straight, 

 not quite half as long as the marginal vein. Wings shriveled. Body 

 with a scaly surface. Antennal club 3-jointed, long acuminated, the 

 funicle 1-jointed ; not able to see the other joints. 



The specimens were somewhat shriveled. In addition to 

 the types as found originally, stated in the preceding lines, 

 there has also been made a balsam slide from one of them 

 bearing a female antenna and labelled " Hym. slide No. Ill " 

 (U. S. N. M.). 



Genus CH^ETOSTRICHA Haliday. 

 1. Cliaetostriclia flavipes (Girault). 



Paracentrobia flavipes Girault, 1905, pp. 287-288. 



A re-examination of the types of this species shows that 

 the antennae were wrongly described as bearing a ring-joint. 

 The following descriptive details are added from them : 



The parapsidal furrows are complete ; ovipositor not exserted ; ab- 

 domen short, conic-ovate, pointed from lateral aspect; lateral ocelli 

 distant from the eye margins. Antennse (fig. 2) clavate, the joints 



Fig. 2. — Antenna of the 9 of Chcetostricha flavipes (Girault), the pubescence omitted ; 

 greatly enlarged. 



irregular in shape in relation to each other, 6-jointed — scape, pedicel, 

 one funicle joint and a 3-jointed club, the segmentation distinct, the 

 ring-joint absent. Fore wings (fig. 3) broad and short, at their widest 

 point nearly two-thirds their length, very broadly oblately rounded at 



TRANS. AM. ENT. SOC.XXXVII. 



