26 FAUNA HAWAIIENSIS 



dark bands on the abdomen. It is represented in the present collection by three male 

 specimens, from Kaala Mts., Oahu ; Halemanu, Kauai ; and Halepaakai, Lanai, respec- 

 tively. In the Oahu example the first humeral and the second post-humeral bristle are 

 extremely small, in the same specimen and that from Kauai I can only distinguish one 

 pair of acrostichal bristles behind the suture, while in the specimen from Lanai there is 

 a distinct third intra-alar bristle In all the specimens the abdominal macrochaetae 

 are well developed, while the genitalia are less prominent than in the other species. 

 Although specifically very distinct, yet its generic position appears to be doubtful, and 

 I therefore only provisionally include it in Prosthetochaeta. 



Prosthetocliaeta, spp. 



A male from Kona, Hawaii, and a female from Lanai, apparently belonging to 

 this genus, differ from any of the above species, but are in too bad a condition for 

 description. 



Sakcophaga Meigen. 



(i) Sarcophaga pallinei-vis Thomson. 



Sarcophaga pallinei'vis Thorns., Eugen. Resa. Dipt. p. 535 (1S68). [Honolulu, 

 California.] 



In the present collection are the following specimens, which agree fairly well with 

 the description of this species : Three males and three females from Kona, one male 

 and two females from Kilauea (Hawaii), one female from Koele Mts. (Lanai), two 

 males and two females from Waialua (Oahu), and one male from Koholuamano 

 (Kauai). 



In the present state of our knowledge of this difficult genus it is impossible to 

 be sure of the identity of this form and it must be left to the future monographer to 

 determine its value as a distinct species. 



Plate II. figs. 18 and 19, chaetotaxy of thorax. 



Two other species are described by Thomson from Honolulu, but they are not 

 represented in the collection formed by INIr Perkins. The original descriptions are 

 reproduced below : 



(2) Sarcophaga barbata Thomson. 



Sarcophaga barbata Thoms., Eugen. Resa. Dipt. p. 533 (186S). 



" Pusco-grisea, antennis pedibusque nigris, ano obscure ferrugineo, capite griseo- 

 albido ; thorace vittis 3 nigris; alls hyalinis ; abdomine maculis tessellatis olivaceo- et 

 fusco-micantibus. %. Long. 1 1 mill. 



" Patria : Insula Honolulu. 



