ANATOMY. 37 
one in the Simuliide and Empidide. Among the calypterate ‘Muscidee 
three is again the rule, though only two are found in the Stomoxyline. 
Among the Acalypterz the numbers range from 0 to 4. I have myself 
examined several extra-drosophiline genera. These, with the forms 
described by Wesché, may be tabulated as in table 2. 
@ HW 
35 
3 
32 : 
39 oi 
36 
4 
41 
40 42 
Figs. 32-43—Spermathece. Magnified 250 diameters. 32. Drosophila nebulosa. 
33. Drosophila obscura. 34. Drosophila putrida. 36. Drosophila quinaria. 
36. Drosophila repleta. 37. Drosophila robusta. 38. Drosophila saltans. 
39. Drosophila similis. 40. Drosophila transversa. 41. Drosophila tripunc- 
tata. 42. Drosophila virilis. 43. Drosophila willistoni. 
The receptacles of Lonchwa polita Say (Loncheine) and of Scato- 
phaga stercoraria Linneeus (Cordylurine) resemble those of Leuco- 
phenga varia. The telescoped type of receptacle so common among 
