PROC. ENT. SOC. WASH., VOL. 20, NO. 7, OCT., 1918 145 







Rileya insularis Ashmead. 



Ashmedia insularis Ashmead, Journ. Linn. Soc. Lond. Zool. XXV, 1894, 



p. 143 & 144. 



As represented by the male allotype in the U. S. N. M. this species is 

 easily distinguished from the other black species by reason of having 

 the third tergite (not counting the petiole) much the largest and extend- 

 ing far, beyond the middle of abdomen, the fourth not longer than the 

 first and only a little longer than the fifth; second tergite very short. 

 The antennal depression is margined, face striated below the eyes, malar 

 space shorter than the eye, carina on cheek and behind the eye not strongly 

 developed; postocellar almost twice the ocellocular line; propodeum 

 with a distinct transverse carina which is angulated at the middle, the 

 area behind this carina longitudinally striated. 



The female is placed in the key from the original description. 



Type female in the British Museum, London; allotype male in 

 the U. S. N. M., Cat No. 2418. Collected on the Island of St. 

 Vincent, West Indies. 



A male specimen of this species in the U. S. N. M. collected at 

 Chapada, Brazil, is labelled in Ashmead's handwriting "Rileya 

 orbitalis Ashmead" and bears the type label " 9 Type No. 8080 

 U. S. N. M." This cannot be the type of orbitalis which was 

 described according to Ashmead from a female from Santarem, 

 Brazil and should be in the collection of the. Carnegie Museum, 

 at Pittsburgh. The specimen does not agree with the color de- 

 scription of orbitalis. 



Rileya pallidipes Ashmead. 



Ashmeadia pallidipes Ashmead, Journ. Linn. Soc. Lond. Zool. XXV, 



1894, p. 144. 



Male. Funicle joints subquadrate; face below eyes striate, the striae 

 not extending above the base of antennae; antennal depression not mar- 

 gined; malar space not nearly twice as long as the width of mandible, 

 much shorter than the height of eye; face not separated from cheek by a 

 distinct carina; ocellus separated from the eye-margin by about the diam- 

 eter of an ocellus; dorsum of pronotum not margined laterally; propodeum 

 with a distinct transverse carina, the area before this carina striated, 

 behind the carina without distinct striations; abdominal petiole about 

 one and one-half times as long as broad and nearly smooth; first tergite 

 about as broad as long; second and third short and subequal, together 

 distinctly shorter than the first; fourth large, extending nearly to the 

 apex of abdomen; fifth about as long as the first; following termites con- 

 cealed from above; stigmal vein short, less than half the length of post- 

 marginal. 



