ICHNEUMON-FLIES — GELINAE : MESOSTENINI 



431 



areolet very small, quadrangular, a little wider than high, a little 

 higher at its apex than at its base, the second intercubitus weak; 

 ramellus absent; nervulus basad of basal vein by about 0.3 its length; 

 base of second discoidal cell broad; mediella wealdy arched; nervellus 

 broken near its hind end; axillus strong, rather close to anal margin; 

 first abdominal segment rather stout, with, a lateral subbasal tooth, 

 its spiracle at its apical 0.40, its sternite ending opposite spiracle, 

 the ventrolateral carina strong between its spiracle and apex, other- 

 wise without distinct carinae; second tergite polished, its punctures 

 fine, weak, separated by about the length of the hairs; tergite 7 without 

 a median white spot but sometimes margined with yellowish white. 

 The female is unlaiown. 



Genotype: Mesostenus reliquus Cresson. 



The generic name is from the Chamula Indians, a tribe in southern 

 Mexico. 



This genus contains the genotype from Louisiana and Mexico, and 

 an undescribed species from Venezuela. 



1. Chatuula reliqiia (Cresson), new combination 



Figure 337,b 



Mesostenus (Polycyrtus) reliquus Cresson, 1873, Proc. Acad. Nat. Sci. Philadelphia, 

 vol. 25, p. 146; cf. Type: (f, Orizaba, Mexico (Philadelphia). 



Male: Front wing 7.8 to 9.5 mm. long; punctures on mesoscutum 

 coarse, irregularly distributed, their interspaces averaging about 1.0 

 their diameter, the punctures a little denser near edges of mesoscutum 

 and along notauli. 



Head, body, and hind coxa black and white as illustrated in figure 

 337, b; mouth parts white; antenna black, the flagellum with a broad, 

 white, postmedian band; front and middle coxae white, with restricted 

 brown markings; trochanters white, the front and middle fu"st tro- 



FiGURE 241. — Locality for 

 Chamula reliqua. 



