3-2 ENTOMOLOGICAL \EWS | Xov., '09 



pubescence; the abdomen with golden pile. Wings slightly yellowish, 

 the apical margin dusky; venation pale brown. 



Male. The male differs from the female as follows : The clypeus with 

 a very short, broad projection which is slightly emarginate, and a short 

 tooth in the center of the emargination ; the scutellum is more strongly 

 impressed ; at the lateral, posterior margin of the metanotum is a short, 

 longitudinal ridge; the posterior trochanters have a strong spine be- 

 neath; the two basal joints of the flagcllum are fulvous, and the ab- 

 dominal segments are darker. 



Type locality: Lee County. Texas. Two females and two 

 males taken by G. Birkmann. The females May, 1908, and 

 the males August 8, 1905. 



This species is close to t excuse Sauss., but the abdomen is 

 darker, the first and second abdominal segments of the male 

 are not the same length, and the first abdominal segment is 

 more strongly raised at the apex. The female differs from 

 Fox's description (Tr. Am. Ent. Soc. XVIII, p. 146, 1891) 

 in having the antennse black at the base, and the enclosure of 

 the metathorax is not finely striated. Fox says the clypeus 

 of te.rcnsc is like spinosnin. If this is the case the shape of 

 the clypeus of the female will at once distinguish this species. 

 The hump on the posterior trochanters of the female may 

 prove a useful character. 



Trypoxylon relativnm n. sp. 



Female. Length 13 mm. Anterior margin of the clypeus with three 

 emarginations, the two lateral ones shallow and with broad, obtuse 

 lobes, the middle one deep and with a tooth in the notch. A faint indi- 

 cation of a carina between the antennae above, a faint impressed line 

 from the anterior ocellus. The distance between the eyes at the top a 

 very little greater than the distance between them at the clypeus. The 

 third antennal joint is not quite as long as joints four plus five; the 

 apical joint is longer than the preceding. The thorax differs from 

 aureolum in not having the scutellum impressed, and in having thy 

 sides of the metanotum wrinkled. The second abdominal segment is 

 a little more than twice as long as wide at the apex. Color as in 

 aureolum. 



Type locality : Fedor, Lee County, Texas. One female col- 

 lected May 12, 1905, by G. Birkmann. 



This species is very close in general appearance to anrcohtin, 

 but the clypeus is very different and the thorax offers some 

 differences. 



