NO. 1860. 



NEW SPECIES OF WASPS— ROHWER. 



477 



the third; wings with a strong purplish reflection; apical joint of the 

 posterior tarsi black; head and thorax (except that of the face which 

 is silvery) with black pubescence; mandibles black. 



Federal District of Mexico. One male received from Prof. Guil- 

 lermo Gandara, for whom the species is named. 



Type.— Cat. No. 14172, U.S.N.M. 



TRYPOXYLON LEUCOTRICHIUM, new species. 



Male. — Length 18 mm. Clypeus like gandarai; front near the 

 orbits with large separate, distinct punctures, in the middle and at 

 the vertex with closer and smaller punctures ; lateral ocelli slightly 

 larger than the anterior one; mesoscutum with fine, separate, distinct 

 punctures, anteriorly with two impressed, longitudinal lines; scutel- 

 lum not impressed ; posterior aspect of propodeum punctured later- 

 ally, the furrow deep ; process of the fu-st ventral segment near base, 



Fig. 22.— Head of Trytoxylon 

 lbucotrichrum rohwer. male. 



Fig. 23.— Lateral mew of the 



LOWER part of THE HEAD OF 

 TRYPOXYLON LEUCOTRICHIUM 



RoHWER. Male. 



Fig. 24.— Lateral view 

 of the basal segment 

 of trypoxylon leu- 

 COTRICHIUM RoHWER. 



Male. 



and not strongly curved; first and second dorsal segments not 

 depressed apically. Mandibles rufous; wings with purple reflections; 

 apical joint of the posterior tarsi black; head and thorax with white 

 pubescence; abdomen with white pile. 



Female. — Length 22 mm. Produced portion of clypeus subtrun- 

 cate apically, the lateral angles rounded; third antennal joint sub- 

 equal with the fourth and fifth, apical jomt tapering and subequal 

 with the preceding; mesoscutum without impressed lines ante- 

 riorly, and not as closely punctured as the male; dorsal aspect of 

 propodeum polished; third dorsal segment narrowly depressed 

 basally; pygidium of the narrow type, see figure 19. 



Colored like the male with which it in general agrees. 



Chanchamayo, Peru. Fifteen specimens (five females and 10 

 males) from Mr. N. F. H. Rosenberg. Also one female from Ancon, 

 Canal Zone, Panama, collected by Mr. A. H. Jennings. 



Type.— C&t. No. 14173, U.S.N.M. 



