CHAULIOPS. 35 



Subfamily VI. HETEROGASTRIN^. 



The basal cells to the membrane will, as shown in the synopsis 

 of subfamilies {ante, p. 2), render this subfamily easily recognisable. 



Less than a dozen genera are at present included in the Hetero- 

 gastrinae, and these are distributed among all the great zoological 

 regions, but there can be little doubt that our present knowledge 

 of the subfamily is somewhat fragmentary. 



Siiaopsis of Genera. 



A. Eyes stylated ; corium shorter than mem- 



brane Chauliops, p. 35. 



B. Eyes not stylated ; corium longer than mem- 



brane. 



a. Head broad; as seen from above, broader 



than long Bocchabis, p. 36. 



b. Head as long as broad or longer, much 



narrowed anteriorly. 



a. Posterior margin of pronotum truncate, 



straight Sadoletus, p. 37. 



b. Posterior margin of pronotum coucavely 



excavate. 



a. Basal j oint of rostrum extending beyond 

 base of head ; body elongately sub- 

 ovate DiNOMACHXTS, p. 37. 



b'. Basal joint of rostrum shorter than 



head ; body narrowly elongate Hyginus, p. 38. 



Genus CHAULIOPS. 

 Chauliops, Scott, A. M. N. H. (4) xiv, p. 427 (1874). 



Type, C. fallax, Scott. 



Distribution. Ceylon, Japan. 



Head broad, eyes stylated and extending beyond the anterior 

 margin of the pronotum, a stout spine beneath each eye near 

 base ; antennae with the first and fourth joints incrassated, first 

 joint passing apex of head which is deflected from in front of 

 eyes ; rostrum reaching the posterior coxae ; pronotum large, 

 ueai'ly twice as broad posteriorly as anteriorly, posterior margin 

 nearly straight in front of scutellum, the lateral angles rounded 

 and forming a marginal callosity ; scutellum large, triangular, 

 centrally sulcate ; corium about half as long as abdomen, its 

 lateral margin sinuate, its apex lobately rounded ; membrane very 

 large, M'ith five veins ; sternum with a rostral channel ; femora 

 moderately incrassated, with a short spine beneath a little beyond 

 middle. 



The position of this very peculiar genus is rather diflicult to 

 decide. Its founder, Scott, described it as reminding one " of a 

 minute species of Nysius with the eyes of Henestaris, between 

 which genera it apparently stands." Uhler has since located it in 

 the Heterogastrinse, and I have followed him in that decision. 



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