TIPULA.— PACHTEEHINA. 15 



6. Tipula craverii(?). 



Tipula craverii, Bellardi, Saggio &c. i. p. 7, t. 1. f. 1 1 . 

 Hab. Mexico \ Northern Sonora (Morrison). 



The specimens from Sonora seem to belong to this species. I have seen the types 

 in Prof. Bellardi's collection (two specimens in very indifferent condition, the one a 

 male, the other without abdomen, but, judging by the antennae, apparently a female), 

 and I am not able to make up my mind whether they belong to the same species as 

 my specimens or not. The wings certainly belong to the same type of marmorate 

 pattern ; but there are, I believe, several conflicting species with that same pattern 

 in Central America and in California. My specimens are smaller, the antennae are 

 more uniformly coloured, &c. 



A specimen from Guatemala shows two distinct brown rings on the femora, of which 

 there is not a trace in the specimens from Sonora ; there are also some slight differ- 

 ences in the pale spots on the wings. 



Bellardi does not mention the conspicuous brown stripe on the pleurae. 



PACHYKRHINA. 



Pachyrhina, Macquart, Hist. Nat. Dipt. i. p. 88 (1834). 



Analytical Table of the Pachyrrhinae from Mexico and Central America. 



Thoracic stripes black. 



Lateral thoracic stripes straight 1. ordina ria, sp. n. 



Lateral thoracic stripes incurved towards the dorso-pleural suture. 

 Lateral thoracic stripes with a velvety-black opaque spot at 

 the end. 



Antennal flagellum altogether black 2. nigrolutea, Bell. 



Antennal flagellum not altogether black 3. consularis, sp. n. 



Lateral thoracic stripes without a velvety-black opaque spot at 



the end, shining 4. usta, sp. n. 



Thoracic stripes ferruginous 5. ferruginea, Fabr. 



The following species are not included in this Table : P. mewicana, Macq., and 

 P. affinis, Bellardi. 



Of P. affinis I have seen the type, a single specimen without abdomen. 

 Owing to its dusty condition I cannot say positively whether its lateral thoracic stripes 

 are velvety-black at the end ; I believe they are not. These stripes being incurved, the 

 species would find its place near P. usta, from which it is easily distinguished by its 

 yellow pleura, spotted with lemon-yellow. 



