NO. 1869. 



NEW SPECIES OF WASPS— ROHWER. 



475 



Fig. 16. — Lateral view of the basal abdominal segments 

 OF Trypoxylon basale Rohwer. Male. 



TRYPOXaaON BASILE, new species. 



Trypoi-ylon politum Howard, Insect Book, 1904, pi. 6, fig. 9, male. 



Male. — ^Length 21 mm. Clypeus differs from politutn} as follows: 

 Broader, the lateral tooth falling well inside of a line drawn tangent 

 to the inner orbit, mid- 

 dle tooth much broader 

 and rounded; vertex 

 flat, not depressed be- 

 hind lateral ocelli; front 

 with rather close dis- 

 tinct punctures; prono- 

 tum strongly trans- 

 versely sulcate; scutel- 

 lum medially and basal middle of dorsal aspect of propodeum slightly 

 impressed; posterior face of propodeum striato-punctate, where striate 

 the striae are dorsad- ventrad; first four abdominal segments as figure 

 16; the broad depression at base of third and the transverse suture 

 near base of fourth dorsal segments make this species easily recog- 

 nized. Color as usual, face with silvery pubescence, the rest of the 

 pubescence black. 



Female. — Length 25 mm. Produced portion of clypeus truncate, 

 lateral angles sharp; third antennal joint nearly as long as the 



fourth and fifth, apical 

 joint strongly tapering, 

 distinctly longer than the 

 preceding; vertex slightly 

 depressed beliind lateral 

 ocelli; thorax as in male; 

 abdomen long; first seg- 

 ment of the elongate type, 

 second and third dorsal 

 segments depressed basally; pygidium narrow, similar to figure 19. 

 Colored as male. 



Utica, Mississippi, one male collected in August. Florida, one 

 female without definite data. 



Type.— Cat: No. 14170, U.S.N.M. 



Fig. 17. — Lateral view of the basal abdominal segments 

 OF Trtpoxylon basale Rohwer. Female. 



J For those who do not have politum see Kohl's figure of neglectum in Verh. zool. bot. Ges. Wien, vol. 

 33, 18S3, pi. 18, fig. 3. 



