TIPHIA. 243 



part an impunctate band, which appears to be slightly raised ; the postscutellum is 

 punctured. The median segment is shining, slightly shagreened; the lateral keels 

 distinct, slightly converging towards the apex ; there are two central keels, which do 

 not reach the apical keel, the space at the apex bounded by them being depressed ; 

 the apex is excavated. The propleurse shining, the lower half obliquely striolated ; 

 the mesopleurse closely punctured, the punctures about half the size of those on the 

 mesonotum, thickly covered with fuscous hairs ; the metapleurse deeply excavated, 

 shining, impunctate at the base, the apex obliquely striolate. The basal segment of 

 the abdomen broader than long, with scattered punctures, the base bearing long 

 fuscous hair ; the second and third segments with scattered punctures, and with a 

 continuous row of them at the apex ; the fourth segment with more punctures and 

 with a broader and deeper row at the apex ; the fifth segment strongly punctured 

 throughout ; the sixth segment at the base coarsely punctured, the apex reddish, very 

 finely and closely punctured ; the third, fourth, and fifth segments at the sides bear 

 long white hair, the fifth more thickly haired than the others ; the sixth is thickly 

 covered with long pale fuscous hair ; the ventral segments are punctured from the 

 base of the second and covered with long pale hairs, especially at the apices. The 

 tibiae and tarsi are thickly covered with silvery hair ; the thick spines on the top of 

 the hinder tibiae are reddish, this being also the case with the tarsal spines. The 

 wings are fusco-hyaline, the stigma black, the nervures brownish ; the first recurrent 

 nervure is received shortly beyond the middle, the second in the apical third of the 

 cellule ; the second nervure is sinuate and has a short branch below the middle. 



This species approaches T. guatemalensis ; but the punctuation of the head and 

 pronotum is stronger ; the ocelli are in pits ; the scutellum is only punctured at the 

 apex ; the median segment is shorter compared to the mesothorax, and it wants the 

 central keel ; the metapleurae are more deeply excavated ; the abdomen is shorter 

 compared to the thorax, much more shining, the suture on the second segment not 

 crenulated ; and the spines on the hind tibiae are reddish. 



5. Tiphia trichiosoma. 



Long. 13 millim. 



Sab. Guatemala, San Geronimo (Champion). 



Head densely covered with long fuscous hair and large, distinctly separated punc- 

 tures ; the clypeus finely punctured, and fringed with golden hair ; the mandibles 

 ferruginous and bearing some long fulvous hair. The scape of the antennae impunctate, 

 covered with long pale hair ; the basal joints of the flagellum covered with short 

 fuscous hair, the other joints with a microscopic pile. The pro- and mesonotum and 

 the mesopleurse densely covered with fuscous hair ; the pronotum nearly as strongly 



2 ii 2 



