102 GORYTES MYSTACBUS. 



Genus 2. GORYTES. 



Sphex, pt,, Linn. Syst. Nat. i. 944 (1766). 



Vespa, pt., Linn. Faun. Suec. 1677 (1766). 



Crabro, pt., Fabr. Syst. Ent. 375 (1790). 



Mellinus, pt., Fabr. Ent. Syst. ii. 285 (1793). 



Gorytes, Latr. Hist. Nat. xiii. 308 (1805). 



Arpactus, pt., Jurine, Hym 194 (1807). 



Hoplisus, St.Farg. Ann. Soc. Ent. Fr. i. 62 (1832). 



Euspongus, St. Farg. Ann. Soc. Ent. Fr. i. 66 (1832). 



Lestiphorus, St. Farg. Ann. Soc. Ent. Fr. i. 70 (1832). 



Head transverse ; eyes ovate and lateral ; the stemmata placed 

 in a curve forward on the vertex ; antennae subfiliform, inserted 

 at the base of the clypeus, longer in the males than in the 

 females, and slightly thickened towards the apex ; the clypeus 

 transverse, rounded in front; the labrum exserted, transverse, 

 rounded anteriorly, and fringed with long setae ; the mandibles 

 with two obtuse teeth. Thorax ovate ; the collar transverse ; 

 scutellum transverse and quadrangular ; the metathorax obtuse 

 or gibbous, and truncated at its apex ; the anterior wings with 

 one marginal and three submarginal cells; the marginal cell 

 elongate ; the first submarginal nearly as long as the two follow- 

 ing j the second much narrowed towards the marginal, receiving 

 both the recurrent nervures the third quadrangular and oblique ; 

 the legs moderately long, and having generally a large pulvillus 

 between their terminal bifid claws. Abdomen ovato-conic, curved 

 at the extremity ; the second ventral segment, in some species, 

 suddenly produced in front and at right angles with its plane. 



In this genus some species have a fourth submarginal cell 

 distinctly enclosed ; but in the type, G. mystaceus, it is incom- 

 plete : we treat this variation as specific in this instance. 



1. Gorytes mystaceus. 

 G. niger; scutello flavo; abdomine fasciis tribus vel quatuor 



fiavis, prima interrupta, tibiis ferrugineis. Fam. 

 G. niger; antennis longioribus, scutello nigro; tibiis fiavis ni- 



grisque. Mas. 



Sphex mystaceus, Linn. Faun. Suec. 412. 1653; Syst. Nat. I. 944* 

 21, 8f Cab. Mus. Linn. Soc. $ . 

 Christ. Hym. 27 Q. 



