30 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



Sitarh and Stenorla^ figured and described by Valerv Mayet and 

 Beauregard, nor from the pupa of Hornia which, according to 

 Riley is like that of Sitaris. Tlierefore a detailed description is 

 considered unnecessary. 



A different pupal type with slender abdomen and hair or spines on 

 the dorsal side of the head and the posterior margins of prothorax and 

 abdominal segments is characteristic for Meloid with errant fourth 

 larval instar and with the pupa developing in the ground, for instance 



the genera Zonahris, Cerocoma^ Epiccmta. 



Maa^ohasis, Lytta^ and several species of 



genus Meloe. 



D. T^IAGO. 



The genus Tncrania LeConte has been 

 divided into two genera by Wellman.^ 

 namely, the old genus IVicrania LeConte 

 s. str. with Trici'ania sanguinipennis Say as 

 the type species and Tncmniodes Wellman 

 with T. stanshurii Haldeman as type species. 

 The genus Tricrania s. str, is characterized 

 as follows: 



Body rather hairy. Head triangular. 

 Labrum small, short, and triangular, ante- 

 riorly rather obtuse. Mandible long, strong, 

 projecting, armed with a low. almost obso- 

 lete tooth below the middle of the inner edge. 

 Maxilla with stipes proper, subgalea, the 

 lacinia-carrying intermaxillare and lacinia 

 itself amalgamated into a single piece ; max- 

 illary palp with apical joint distall}^ obtuse, 

 a little longer than the following joint. Labium small. Antenna ser- 

 rate; antennal joints obconical, slightly compressed. Head and 

 thorax slightly narrower than the base of the elytra. Hind Avings 

 absent. Tarsi rather robust; those of the anterior and middle legs 

 about as long as their tibiae ; tarsus of hind leg not more than two- 

 thirds of the length of tibia. Tarsal claws double, with a pectinate 

 and thicker upper portion, and an equally long, simple, and bristle- 

 shaped lower one; upper portion distally with a single, proximally 

 with a double row of short teeth. 



According to Wellman Tricraniodes differs from Tricrania by 

 possessing hind wings and by having a single row of long, regular 

 teeth both distally and proximally on the upper portion of each 

 double claw. 



riG. 1. TRICRANIA SAN- 

 GUINIPENNIS SAY. PUPA 

 WITH EXUVIDM OP SIXTH 

 INSTAE ATTACHED TO POS- 

 TERIOR PART OF BODY. 



8 Wellman, C— Ou the classification of the Lyttidae, Ent. News, vol. 21, 1910. p. 219. 



