XXIV 



ON THE TERMINOLOGY OF DIPTERA. 



1. Wing of Ortalis. 

 a Transverse shoulder-vein (vena transversa humeralis). 



c iTf^lth^C^t^ fourth, fifth, and sixth longitudinal veins (ven» 



' 'longitudinals prima, BBCOnda, tertia, quarta, qninta, et sexta) 

 i. Small or middle transverse vein (vena transversa minor s. media). 

 k. Hinder transverse vein (vena transversa posterior). 

 Lm.n.o. Costal vein (vena costalls). 



» Anterior basal transverse vein (vena transversa basalia anterior) 

 q. Posterior basal transverse vein (vena transversa basalls posterior). 

 r. Rudiment o( the fourth trunk. 

 a Axillarv Incision (incisnra axillaris). 

 A, B, audV'. First, second, and third costal-cells (cellnlae costales prima, secunda, et 



tertia). 

 J). Marginal cell (ccllula marginahs). 



E Submarrinal cell (cellnla Bnbmarginalis). . „„„„„ .„ 



F, 0, and II. First, wound, and third posterior cells (cellule posteriori prima, secunda, 



el tertia). 

 I. Piscal cell (cellula discoidalU). 



A' Firs! or large basal cell (cellula basalie prima b. major). 

 L Second basal ceU, or anterior of the small basal cells. 



V Third basal cell, or posterior of the small basal cells. 



1 or axillary comer of the wing (augulus anahs s. axillaris). 

 O. Alar appendage (alula). 



erier^rSfch of the third longitudinal vein (venae longitudinalis tertiao ramus 

 anterior). . , 



anterior intercalary vein (vena intercalaris anterior). 



3. Wing "/ Dasypogon 



t. Ant. Tier brand' of the third longitudinal vein. 



//. Anterior Intercalary vein. 

 v. Posterior intercalary vein. 



