HTLOTOMA. 41 



Closely allied to H. albitibialis, but larger and broader ; the abdomen is longer, the 

 vertex broadly black ; the frontal area broader behind ; the transverse median nervure 

 is received almost in the centre of the cellule, the third cubital cellule is longer, the 

 nervures are much deeper in tint, the anterior femora are broadly black, and the apices 

 of tibiae are not black. 



17. Hylotoma albitibialis. 



Lutea, antennis (apice excepto), macula mesosterni, abdominis apice, femoribus posterioribus fere totis, tarsis 

 apiceque tibiarum nigris, tibiis albidis ; alia flavescenti-hyalinis, apice fumatis, costa et stigmate testaceis. 

 Long. 8 1 millim. 



Hab. Guatemala, Zapote (Champion). 



The antennae are a little longer than the head and thorax, and thickened but very 

 slightly towards the apex ; the frontal area is truncated behind, distinctly six-angled, 

 longer than broad ; the antennal fovea wide, deep, and with a small tubercle. The 

 clypeus is but very slightly incised ; the third cubital cellule is not much longer than wide, 

 wider at the apex than at the base ; the second recurrent nervure is received towards the 

 basal fourth of the third cubital cellule ; there are two bullae in each of the second and 

 third transverse cubital nervures, which are joined by spurious veins. The calcaria 

 are long and reach beyond the middle of the metatarsus. The black mark on the 

 mesosternum may be divided in the middle. 



18. Hylotoma fasciatipennis. 



Eufo-testacea, antennis nigris, basi testacea ; pedibus pallide testaceis, tibiis apiceque tibiarum bete et abdo- 

 minis apice nigris ; alis fumatis, medio flavescenti-hyalinis, costa et stigmate fere totis fuscis. 

 Long, fere 7 millim. 



Hab. Guatemala, Capetillo (Champion). 



The antennae are a little longer than the head and thorax, pilose and not perceptibly 

 thickened towards the apex ; the frontal area is not much broader than long, semi- 

 truncated behind ; the antennal fovea is comparatively short and wide, and bears no 

 tubercle ; the clypeus is but very slightly incised. The ocelli are narrowly surrounded 

 with black ; the second recurrent nervure is received a very little past the second trans- 

 verse cubital ; the third cubital cellule is a little longer than wide, at the top it is 

 not much wider than at the bottom at the apex ; the third transverse cubital nervure 

 is straight. The hyaline portion of the wings extends from the base of the stigma 

 (which is testaceous) to the base of the median cellule. The three apical segments are 

 more or less black above and at the sides; the sheath of the saw is testaceous, with the 

 upperside black. The spurs are testaceous, short, and do not reach to the middle of 

 the metatarsus, 



biol. centr.-amer., Hymenopt., September 1883. gg 



Wr, 3 



