I 



MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 403 



tbiui, the tiagellar joints, except the first three and the hist, elliptic- 

 oval, the fourth and followinj^' stouter than the three i)recedinj;'. Abdo- 

 men obloug-oval, the i)etiole about twice as long as thick, cylindric, 

 striated, snbpnbescent; otherwise color, ete., as in female. 



Haeitat. — St. Vincent, West Indies. 



Types in is^atioual Museum. 



IDIOTYPA I .irster. 

 Hyui. Stud., II, p. 121' (1856). 

 Mlonopna Hal., Nat. Hist. Rev., iv, p. 172. 



(Type M. iiiarUima Hal.) 



Head subrotund, the (n-ciput rounded; ocelli 3, .in a triangle; eyes 

 large, rounded or oval. 



j^ nteuiKe in $ 12-jointed, clavate, the pedicel shorter thau the first 

 funiclar joint; club 5-jointed; in $ lo-jointed, filiform, pubescent, the 

 scape reaching beyond the ocelli, cylindric ; pedicel small; first flagellar 

 joint as long or slightly longer than the second; second, more or less 

 excised at base; the following joints all cj'liudrical, equal or subequal. 



Thorax ovoid, the prothorax distinctly visible from above, transverse, 

 the sides bare; inesonotum uider than long, with two distinct furrows, 

 slightly diverging anteriorly; scutelluni subconvex, with an impressed 

 line at sides and unifoveated at base; metathorax short, emarginated 

 i)Osteriorly, a conic prominence at base above, and with the angles acute. 



Front wings pubescent, the costal cell complete; the submarginal 

 vein reaches the costa at about half its length, terminating in a distinct 

 marginal vein; the postmarginal vein sometimes slightly developed; 

 the stigmal vein usually short, but distinct, with a spurious vein from 

 its tip, directed backwards; the basal cell distinct, although the 

 median nervure is moie or less hyaline before it joins the basal nervure. 



Abdomen subovate or oblong-oval; in 9 S-jointed, the petiole distinct, 

 two or three times as long as thick; second segment very large, with a 

 median sulcus at base; following segments short. 



Legs rather long, the femora and tibiae clavate, basally very slender, 

 pilose, the tibial spurs weak but distinct, the posterior tarsi longer than 

 their tibise, the basal joint more thau thrice the length of the second, 

 the terminal joint also longer than usual; claws small, simple. 



Not found in our fauna. On PI, xvii, Fig. 3, I figure the female of 

 Idiotypa imUida Ashm. from St. Vincent, West Indies. 



Syn. Mijthras Ifal. 



ANEURHYNCHUS Westw. 

 I'hil. Mag., I, p. 129, 1832. 



(Type A. (jalesiformis Westw.) 



Head transverse, with a short frontal sulcus, the occiput not emar- 

 ginated, rounded. Eyes rounded. Ocelli 3, in a triangle, 



