100 Bulletin of the Brooklyn Entomological Society Vol. XV 



Xylastodorinae, new subfamily. 



Tyliis extended to apex of the head, as long as the jugse, 

 these parallel sided. Rostrum apparently three-segmented 

 (base hidden). Bucculse represented by low, widely separated 

 ridges as in Thaumastocoris. Lateral margins of the pronotum 

 and corium expanded. Coriuni much wider than abdomen. 

 Clavus parallel sided, not ampliated apically. Commissure 

 much shorter than scutellum. Membrane without veins. 

 Meso- and metasternum fused (composite) and covered by a 

 subcordate plate which is linearly grooved in the middle. 

 Globular coxae widely separated. Acetabute closed up. Odor- 

 iferous orifices absent. Seven pairs of ventral spiracles in 

 the male. Tibia without apical membranous appendage. Two- 

 segmented tarsi with arolia set closely to the widely divaricate, 

 decurved claws. Apex of tarsi between the claws with two 

 nearly parallel, porrect setae. Venter of the two sexes ap- 

 parently much as in Thaumastocorinse, first segment however 

 not linear, and the genital apparatus of the male more elon- 

 gate (Figs. 2 and 3). 



Xylastodoris, new genus. 



Much flattened. Head porrect, nearly as wide as long ; tylus 

 and jugse equally long, parallel sided. Four segmented an- 

 tennae short, less than twice as long as the pronotum, set upon 

 antenniferous tubercles placed between the eyes and lateral 

 margin of head, these entirely visible from above and subtrun- 

 cated at apex. Margins of head before these, parallel sided to 

 the rounded apex. Eyes well removed from anterior angles 

 of pronotum, posterior to which the head is suddenly con- 

 tracted. Ocelli widely separated. Bucculse represented by 

 two widely separated slightly raised ridges evanescent poste- 

 riorly. Rostrum short, flattened, apparently of three segments 

 (base hidden), its apex not reaching middle of prosternum; 

 piercing lancets arising before the origin of the rostrum. Pro- 

 notum wider than long, about as long as the head, lateral mar- 

 gins considerably expanded and slightly raised ; disk flattened, 

 shallowly transversely depressed just before middle ; posterior 

 lobe rather coarsely and closely punctate. Scutellum a little 

 shorter than pronotum, a little longer than wide, finely punc- 

 tate, non-carinate. Hemielytra much wider and longer than 

 abdomen, consisting of clavus, corium and membrane. Lateral 

 margin of corium rather widely expanded and slightly re- 

 flexed ; disk slightly convex, shallowly punctate ; outer apical 

 ansfle narrowly, crescentically extended to apex of membrane. 

 Clavus parallel sided, irregularly punctate. Membrane well 



