390 University of California Publications [Entomology 



than long; labial palpi 3-segmented in both sexes ;io last dorsal 

 segment hood shaped, rounded to meet the venter, without apical 

 teeth or truncature, but slightly transversely emarginate at apex; 

 apex of the seventh ventral segment truncate; uncus very broad 

 and strongly depressed; squama ending in a sharp, strongly de- 

 curved hook Trimeria Buysson. 



Genus Paragia Sliuckard 



Figures 3, 13, 24, 25, 43-45, 75, 76, 91, 92, 94, 101. 



5- General form like Vespa. Head large ; the occiput immargined ; 

 the temples broad, immargined, eyes not incised, but the inner margins 

 sinuate, reaching the mandibles, separate from one another above by 

 a distance equal to their own length ; ocelli close, in a small triangle 

 which is slightly broader than high; front moderately prominent; 

 clypeus moderately prominent, the anterior margin produced and trun- 

 cate ; labrum short, bilobed ; mandibles short and stout, the inner 

 margin with two teeth. 



The ligula is short and not retractile, composed of the two strap- 

 like glossae, which are about the length of the labial palpus, strongly 

 divergent, united only for a short distance at their bases. The para- 

 glossae are similar in appearance to the glossae and but little shorter. 

 The glossae and paraglossae are all tipped with a chitinous button, 

 such as is often found in Eumeninae. The dorsal hind margin of the 

 glossa bears a series of elongate and very broadly transversely flattened 

 setae, analogous to the scales found in Ceramius and Paraceramius, 

 and the anterior dorsal margin is fringed with smaller and less con- 

 spicuous setae, somewhat flattened in the opposite diameter. At the 

 base of the glossa, mesad of the paraglossae is a membranous lobe armed 

 with a group of minute tubercles, and between the two of these, in the 

 median line, is a heavily chitinized tongue-shaped piece, the tip of 

 which is turned upward ; the labial palpus is 4-segmented, non-elongate, 

 the first segment stout and widened at apex, the last half as long. 

 Between the two palpi, in the median line, an anterior tongue-like 

 extension of the heavily ehitinized mentum and submentum is thickly 

 set with sensory setae. The point of this process is very acute, turned 

 upward and may be distinctly seen from the dorsal surface. On the 

 dorsal side at the base of the glossa and bearing this at their apex are 

 two chitinized plates, with a partly lateral, partly dorsal surface, 

 joined at their bases, and formed like a letter V with expanded arms. 

 Laterad of these, and somewhat enclosing them, is on each side a chiti- 

 nized roughly triangular piece, with acute apex situated at the bases 

 of the paraglossae. The inner margins of these two pieces are fringed 

 with a double comb of spines ; a chitinized band on either side between 

 these pieces passes forAvard beneath the combs to near their apices, then 

 ventrad between the glossae and paraglossae articulating on the ventral 



10 I have seen only the male, but Saussure states that they are 3-segmented 

 in the female. 



